mxl7225 25a dual phase

MaxLinear ConfidentialTBD/18 006UMR02 i • www.maxlinear.com • 006UMR02

MxL722525A Dual Phase

EVB User Manual

www.maxlinear.com

MxL7225 25A Dual Phase EVB User Manual Revision History

10/5/20 006UMR02 ii

Revision HistoryDocument No. Release Date Change Description006UMR02 10/5/20 Initial release.

MxL7225 25A Dual Phase EVB User Manual Table of Contents

10/5/20 006UMR02 iii

Table of ContentsIntroduction......................................................................................................................................................... 1

Quick EVB Set Up and Start Up....................................................................................................................................1

Factory Settings ...................................................................................................................................................1

Quick Start Up ......................................................................................................................................................1

Reference Documentation ................................................................................................................................. 4Ordering Information.......................................................................................................................................... 4

Evaluation Board Overview ............................................................................................................................... 5

Configuration and I/O Interfaces ....................................................................................................................... 6MODE............................................................................................................................................................................6

RUN1, RUN2.................................................................................................................................................................6

TRACK1 SEL, TRACK2 SEL ........................................................................................................................................6

PHASMD .......................................................................................................................................................................6

EXTVCC........................................................................................................................................................................6

TEMP ............................................................................................................................................................................6

PGOOD1, PGOOD2......................................................................................................................................................6

SW1, SW2.....................................................................................................................................................................6

Set-Up Options.................................................................................................................................................... 7Jumper J44 MODE........................................................................................................................................................7

Jumpers J30 RUN1 and J29 RUN2...............................................................................................................................7

Jumper J26 TRACK1 SEL.............................................................................................................................................7

Jumper J25 TRACK2 SEL.............................................................................................................................................8

Jumper J45 PHASMD ...................................................................................................................................................8

Test Interfaces..................................................................................................................................................... 9Load Transient Circuit ...................................................................................................................................................9

MxL7225 EVB Mode Selection....................................................................................................................................10

Performance...................................................................................................................................................... 12Efficiency .....................................................................................................................................................................12

Load Transient Response ...........................................................................................................................................13

Output Ripple ..............................................................................................................................................................14

Thermal .......................................................................................................................................................................15

MxL7225EVB Schematic .................................................................................................................................. 16

MxL7225EVB PCB Layers ................................................................................................................................ 19

MxL7225EVB Bill of Materials.......................................................................................................................... 21

MxL7225 25A Dual Phase EVB User Manual List of Figures

10/5/20 006UMR02 iv

List of FiguresFigure 1: Monitoring VIN and VOUT.........................................................................................................................................2

Figure 2: Top View of MxL7225 25A Dual Phase BGA EVB............................................................................... ...................3

Figure 3: Block Diagram MxL7225 Two Channel EVB...........................................................................................................5

Figure 4: Load Transient Circuit .............................................................................................................................................9

Figure 5: Mode 1 Block Diagram ................................................................................................................................. .........11





Figure 10: Mode 6 Block Diagram ........................................................................................................................................11

Figure 11: Channel 1 Measured Efficiency (VOUT = 1.5V, fSW = 500kHz, Ch 2 Disabled) ................................ ...................12

Figure 12: Channel 2 Measured Efficiency (VOUT = 1.0V, fSW = 500kHz, Ch 1 Disabled) ................................ ...................12

Figure 13: Load Transient Response (VOUT = 1.5V, VIN = 12V) ....................................................................... ...................13

Figure 14: Load Transient Response (VOUT = 1.0V, VIN = 12V) ....................................................................... ...................13

Figure 15: Channel 1 Output Voltage Ripple (VIN = 12V, VOUT = 1.5V, Load = 25A) ....................................... ...................14

Figure 16: Channel 2 Output Voltage Ripple (VIN = 12V, VOUT = 1.0V, Load = 25A) ....................................... ...................14

Figure 17: Thermal Capture (VIN = 12V, VOUT = 1.5V, Load = 25A, 500kHz, Airflow = 200LFM) .................... ...................15

Figure 18: EVB Schematic ................................................................................................................................ ...................16

Figure 19: EVB Schematic, Continued .............................................................................................................. ...................17

Figure 20: EVB Schematic, Continued .............................................................................................................. ...................18

Figure 21: EVB PCB BGA Silkscreen Top .................................................................................................................. .........19

Figure 22: EVB PCB BGA Layer 1 .............................................................................................................................. .........19






Figure 28: EVB PCB BGA Silkscreen Bottom ............................................................................................................. .........20

MxL7225 25A Dual Phase EVB User Manual List of Tables

10/5/20 006UMR02 v

List of TablesTable 1: Evaluation Board Ordering Part Number..................................................................................................................4Table 2: Factory Settings........................................................................................................................................................7Table 3: J44 Options ..............................................................................................................................................................7Table 4: J30, J29 Options.......................................................................................................................................................7Table 5: J26 Options ..............................................................................................................................................................7Table 6: J25 Options ..............................................................................................................................................................8Table 7: JP45 Options ............................................................................................................................................................8Table 8: Board Stuffing for Operation Mode Selection .........................................................................................................10Table 9: EVB BGA Bill of Materials ......................................................................................................................................21

MxL7225 25A Dual Phase EVB User Manual Introduction

10/5/20 006UMR02 1

IntroductionThe MxL7225 evaluation board provides a platform to evaluate the features and performance of the MxL7225. The MxL7225 is a dual 25A Power Module optimized for powering Telecom, Networking and Industrial equipment. There are multiple EVBs for the MxL7225. This manual covers the 25A Dual Phase BGA Evaluation Boards.

Quick EVB Set Up and Start Up

Factory SettingsIn addition to utilizing the 4.5V to 15V input voltage range and dual 25A maximum load current rating capabilities of the MxL7225 Power Module, the Evaluation Board has been set up with the factory default configurations shown below for quick set up and operation. Do not exceed the EVB maximum load current rating.

The factory default configuration (Table 2) for the MxL7225 Evaluation Board is:

VOUT1 = 1.5V ±1.5%

VOUT2 = 1.0V ±1.5%

500kHz Switching Frequency

CCM mode. For other modes, see Jumper J44 MODE.

Run is enabled for both channels. See Jumpers J30 RUN1 and J29 RUN2.

Soft-start is selected for both channels. See Jumper J26 TRACK1 SEL and Jumper J25 TRACK2 SEL.

CLKOUT phase is 90 degrees, see Jumper J45 PHASMD.

Quick Start UpTo quickly see the regulator in operation:

1. Use the factory settings and default configuration. If other settings or components are desired, apply them before the next steps and see Set-Up Options for more.

2. Connect a turned-off power supply that is within a VIN specification of 4.5V to 15V, (12V typical) to VIN and GND with short, thick leads. Use test pins VIN+ and VIN- to monitor VIN and GND respectively. See locations in Figure 1.

3. For the channel 1 output, connect an electronic load initially set to 0A, that will be no more than the above maximum IOUT (25A ), to VOUT1 and GND with short / thick leads. Use test pins VOUT1 (J52) and VOUT1_GND (J60) to monitor VOUT1 and GND respectively. See locations in Figure 1.

4. For the channel 2 output, connect an electronic load initially set to 0A, that will be no more than the above maximum IOUT (25A ), to VOUT2 and GND with short, thick leads. Use test pins VOUT2 (J53) and

VOUT2_GND (J61) to monitor VOUT2 and GND respectively. See locations in Figure 1.

5. Turn on the power supply and check VOUT of both channels. The EVB will power up and (factory default) regulate the channel 1 output at 1.5V ±1.5% (1.4775V to 1.5225V) and channel 2 output at 1.0V ±1.5% (0.985V to 1.015V). Output ripple should be measured across the output capacitors for each channel: C8 for VOUT1 and C22 for VOUT2. Test points J52 and J53 can be used to monitor VOUT1 and VOUT2, respectively.

6. Set or vary the load (do not exceed the maximum IOUT) and check VOUT and other desired performance levels such as regulation and efficiency.

See Configuration and I/O Interfaces and Load Transient Circuit for more on testing and monitoring. For Single Rail Dual Phase 50A Operation and to vary VOUT see MxL7225 EVB Mode Selection.

MxL7225 25A Dual Phase EVB User Manual Quick EVB Set Up and Start Up

10/5/20 006UMR02 2

Figure 1: Monitoring VIN and VOUT

A- + VIN

+- + -V V

Load LoadA A+- + -

V+ -

MxL7225 25A Dual Phase EVB User Manual Quick EVB Set Up and Start Up

10/5/20 006UMR02 3

Figure 2: Top View of MxL7225 25A Dual Phase BGA EVB

MxL7225 25A Dual Phase EVB User Manual Reference Documentation

10/5/20 006UMR02 4

Reference DocumentationPlease refer to the MxL7225 Data Sheet for additional information about the MxL7225, including efficiency curves for this configuration with VIN = 12V. The datasheet also includes a full list of IC features, pinout, pin descriptions, typical performance characteristics and external component calculations. This manual is meant to be used in conjunction with the datasheet.

This manual provides EVB schematics, PCB layout and bill of materials that can be utilized to assist in your board design. The schematics are also available on the MxL7225 product page.

Ordering Information

1. Refer to www.maxlinear.com/MxL7225 for most up-to-date Ordering Information.

Table 1: Evaluation Board Ordering Part Number

Power Module Evaluation Board DescriptionMxL7225-ABA-T MxL7225-EVK-1 MxL7225 Evaluation Board, Single Device, Dual Output

http://www.maxlinear.com/MxL7225

http://www.exar.com/MxL7213

http://www.exar.com/MxL7213

http://www.maxlinear.com/mxl7213

http://www.maxlinearar.com/MxL7225

http://www.maxlinear.com/MxL7225

MxL7225 25A Dual Phase EVB User Manual Evaluation Board Overview

10/5/20 006UMR02 5

Evaluation Board OverviewThe block diagram shown in Figure 3 illustrates the connection points for the VIN, VOUT1, VOUT2, TRACK, MODE_PLL and RUN pins.

Figure 3: Block Diagram MxL7225 Two Channel EVB

VOUT1

VOUT2

PHASEMD

RUN2

TRACK2

MODE

RUN1

TRACK1

VIN

TRACK1SELECTJUMPER

(J26)

RUN1SELECTJUMPER

(J30)

MODESELECTJUMPER

(J44)

TRACK2SELECTJUMPER

(J25)

RUN2SELECTJUMPER

(J29)

PHASEMDSELECTJUMPER

(J22)

OUTPUTCONFIGOPTION

DIFFSENSEOPTION

J6

VOUT1CONNECTOR

J16

VOUT2CONNECTOR

J58

IOSTEPCONNECTOR

J16

VOUT2CONNECTOR

J6

VOUT1CONNECTOR

VINCONNECTOR

J9

MxL7225

VOUT1 VOUT2

TRANSIENT LOADCIRCUIT

MxL7225 25A Dual Phase EVB User Manual Configuration and I/O Interfaces

10/5/20 006UMR02 6

Configuration and I/O Interfaces

MODEThe MODE (J44) jumper is provided for overall device configuration:

Force Continuous Mode, Pulse-Skipping Mode and External Synchronization are selectable.

RUN1, RUN2A RUN jumper is provided for both channels (J30 for RUN1 and J29 for RUN2).

TRACK1 SEL, TRACK2 SELA TRACK jumper is provided for both channels.

VOUT, EXT and SOFTSTART are selectable.

Test points are allocated for probing of TRACK1 (J26) and TRACK2 (J25).

PHASMDA CLKOUT (J45) jumper is provided for clock phase selection.

60, 90 or 120 degrees of phase offset is configurable.

EXTVCCAn EXTVCC test point (J2) is provided to monitor or inject EXTVCC.

TEMPA TEMP test point (J3) is provided to monitor temperature.

PGOOD1, PGOOD2A PGOOD test point is provided for both channels (J24 for PGOOD1 and J23 for PGOOD2).

Both PGOOD signals are tied to INTVCC through 10kΩ resistors.

Note: The silkscreen on the evaluation board is reversed for PGOOD1 and PGOOD2.

SW1, SW2A SW test point is provided for both switching signals (TP1 for SW1 and TP2 for SW2).

MxL7225 25A Dual Phase EVB User Manual Set-Up Options

10/5/20 006UMR02 7

Set-Up OptionsJumpers are factory installed per Table 2 to configure the EVB for operation. Jumper and testing options are described in the next sections. Refer to the product datasheet for additional information.

Jumper J44 MODE

Jumpers J30 RUN1 and J29 RUN2

Jumper J26 TRACK1 SELTable 5: J26 Options

Table 2: Factory Settings

Jumper Label Factory Setting DescriptionJ44 MODE Jumper 3-4 FCMJ30 RUN1 Jumper 1-2 OnJ29 RUN2 Jumper 1-2 OnJ26 TRACK1 Jumper 5-6 Soft-StartJ25 TRACK2 Jumper 5-6 Soft-StartJ45 PHASEMD No Jumper 90°

Table 3: J44 Options

Jumper Options DescriptionJumper 1-2 PSM - Pulse Skipping Mode.Jumper 3-4 FCM - Force Continuous Mode.Pin 6 Apply an external clock to pin 6 to put both channels into continuous mode, synchronized to the applied clock.

Table 4: J30, J29 Options

Jumper Options DescriptionJumper 1-2 On. RUN1/2 connected to VIN.Jumper 2-3 Off. RUN1/2 connected to GND.

Jumper Options DescriptionJumper 1-2 VOUT2 master track mode.

Jumper 3-4 External master track mode.Jumper 5-6 Soft start. Track1 connected to cap to GND.

MxL7225 25A Dual Phase EVB User Manual Jumper J25 TRACK2 SEL

10/5/20 006UMR02 8

Jumper J25 TRACK2 SEL

Jumper J45 PHASMD

Table 6: J25 Options

Jumper Options DescriptionJumper 1-2 VOUT1 master track mode.

Jumper 3-4 External master track mode.Jumper 5-6 Soft start. Track1 connected to cap to GND.

Table 7: JP45 Options

Jumper Options DescriptionJumper 1-2 120°No Jumper 90°Jumper 2-3 60°

MxL7225 25A Dual Phase EVB User Manual Test Interfaces

10/5/20 006UMR02 9

Test Interfaces

Load Transient CircuitA load transient circuit is provided to allow optional testing of load transients. The IOSTEP clock input is used to drive the transient signal. The load step generated by the FET (Q1) is very fast; the step slew rate is >40A/µs for a 12.5A transient load test case.

To measure load transient response for either channel, use the circuit shown in Figure 4. To test CH1, populate R56 and depopulate R57 and apply a small duty cycle pule signal to IOSTEP CLK input (~ 1%). Adjust the amplitude of the IOSTEP CLK pulse to set the load current. Start at a pulse amplitude of 2V and increase while monitoring the IOSTEP (J59) voltage. The load current at IOSTEP (J59) is 10mV/A. For an example, a 12.5mA load will occur when a 125mV pulse is observed at J59.

To test load transient response on CH2, depopulate R56 and populate R57 and repeat procedure.

Figure 4: Load Transient Circuit

VOUT1(1,2) VOUT2 (1,2)R56

DNP

J601

0603R60

10 Kohm

0603 C391uF

R57

DNP

2512R58

0.01 ohm

0603C411uF

J611

0603C401uF

Q1SUD50N04

3

1

2

J581

2J591

2

0603 C381uF

2512R59

DNP

IOSTEP

IOSTEP_CLK

MxL7225 25A Dual Phase EVB User Manual MxL7225 EVB Mode Selection

10/5/20 006UMR02 10

MxL7225 EVB Mode SelectionThe MxL7225 EVB can be configured for 6 different modes of operation:

Mode 1: Dual 25A with no remote sense amplifier

Mode 2: Dual 25A with remote sense amplifier on VOUT1

Mode 3: Dual 25A with remote sense amplifier on VOUT2

Mode 4: Single 50A with no remote sense amplifier

Mode 5: Single 50A with remote sense amplifier on VOUT1

Mode 6: Single 50A with remote sense amplifier on VOUT2

The stuffing options to configure the EVB into each of the 6 modes are shown below with the block diagram for each mode on the next page.

Table 8: Board Stuffing for Operation Mode Selection

Pin Function Component

Mode 1Dual RailSingle PhaseDiff AmpNC

Mode 2Dual RailSingle PhaseDiff Amp VOUT1

Mode 3Dual RailSingle PhaseDiff Amp VOUT2

Mode 4Single RailDual PhaseDiff AmpNC

Mode 5Single RailDual PhaseDiff Amp VOUT1

Mode 6Single RailDual PhaseDiff Amp VOUT2

2-Phase (VOUT1)

R5 DNP DNP DNP 0Ω 0Ω 0Ω

2-Phase (VOUT2)

R6 DNP DNP DNP 0Ω 0Ω 0Ω

VOUTS1 R4 0Ω DNP 0Ω 0Ω DNP DNPVOUTS2 R7 0Ω 0Ω DNP DNP DNP DNPDIFFP (VOUT1+)

R34 DNP 0Ω DNP DNP 0Ω DNP

DIFFP (VOUT2+)

R40 DNP DNP 0Ω DNP DNP 0Ω

DIFFN (VOUT1-)


DIFFN (VOUT2-)


DIFFOUT (VOUTS1+)


DIFFOUT (VOUTS2+)


TRACK R45 DNP DNP DNP 0Ω 0Ω 0ΩTRACK1 J15 (5-6) On On On On On OnTRACK2 J32 (5-6) On On On Off Off OffRUN R43 DNP DNP DNP 0Ω 0Ω 0ΩCOMP R44 DNP DNP DNP 0Ω 0Ω 0ΩPGOOD R47 DNP DNP DNP 0Ω 0Ω 0ΩVFB R46 DNP DNP DNP 0Ω 0Ω 0Ω

MxL7225 25A Dual Phase EVB User Manual MxL7225 EVB Mode Selection

10/5/20 006UMR02 11

Figure 5: Mode 1 Block Diagram Figure 6: Mode 2 Block Diagram

MODE1Dual Rail Single Phase

Diff Amp -> NC

R3

R2

R4

R9

R8

VOUT1+

VOUT2+

VOUT1-

VOUT2-

VOUT1VOUTS1

DIFFPDIFFN

DIFFOUT

VOUT2VOUTS2

R7R7


Diff Amp -> VOUT1

R2

R41

R9

R8

VOUT1+

VOUT2+

VOUT1-

VOUT2-

VOUT1VOUTS1

DIFFPDIFFN

DIFFOUT

VOUTS2VOUT2

R54R34

R7

R3



Diff Amp -> VOUT2R2

R3

VOUT1+

R42

R8

R9

VOUT2+

VOUT1-

VOUT2-

VOUT1VOUTS1

DIFFPDIFFN

DIFFOUT

VOUT2VOUTS2

R55R40

R4

MODE4Single Rail Dual Phase

Diff Amp -> NC

R3

R2

R4

R9

R8

VOUT1+

VOUT2+

VOUT1-

VOUT2-

VOUT1VOUTS1

DIFFPDIFFN

DIFFOUT

VOUT2VOUTS2

VOUT_50A

R5

R6


MODE5Single Rail Dual Phase

Diff Amp -> VOUT1

R41

R9

R8VOUT2+

VOUT1-

VOUT2-

VOUT1VOUTS1

DIFFPDIFFN

DIFFOUT

VOUT2VOUTS2

VOUT_50A

R5

R6R54R34

R2VOUT1+

R3

MODE6Single Rail Dual

Diff Amp -> VOUT

R2

R3

VOUT1+

R42

R8

R9

VOUT2+

VOUT1-

VOUT2-

VOUT1VOUTS1

DIFFPDIFFN

DIFFOUT

VOUT2VOUTS2

VOUT_50A

R5

R6R55R40

MxL7225 25A Dual Phase EVB User Manual Performance

10/5/20 006UMR02 12

Performance

Efficiency

Figure 11: Channel 1 Measured Efficiency (VOUT = 1.5V, fSW = 500kHz, Ch 2 Disabled)

Figure 12: Channel 2 Measured Efficiency (VOUT = 1.0V, fSW = 500kHz, Ch 1 Disabled)

65

70

75

80

85

90

95

0 5 10 15 20 25

Effi

cien

cy (%

)

Load Current (A)

5VIN, 1.5VOUT

12VIN, 1.5VOUT

65

70

75

80

85

90

95

0 5 10 15 20 25

Effi

cien

cy (%

)

Load Current (A)

5VIN, 1.0VOUT

12VIN, 1.0VOUT

MxL7225 25A Dual Phase EVB User Manual Load Transient Response

10/5/20 006UMR02 13

Load Transient Response

Figure 13: Load Transient Response (VOUT = 1.5V, VIN = 12V)

Figure 14: Load Transient Response (VOUT = 1.0V, VIN = 12V)

MxL7225 25A Dual Phase EVB User Manual Output Ripple

10/5/20 006UMR02 14

Output Ripple

2. Ripple waveform shown, measured at VOUT1 (J54). The ripple waveform characteristics ideally should be observed at the output capacitor closest to the MxL7225, C8.

Figure 15: Channel 1 Output Voltage Ripple (VIN = 12V, VOUT = 1.5V, Load = 25A)

3. Ripple waveform shown, measured at VOUT2 (J55). The ripple waveform characteristics ideally should be observed at the output capacitor closest to the MxL7225, C22.

Figure 16: Channel 2 Output Voltage Ripple (VIN = 12V, VOUT = 1.0V, Load = 25A)

MxL7225 25A Dual Phase EVB User Manual Thermal

10/5/20 006UMR02 15

Thermal

Figure 17: Thermal Capture (VIN = 12V, VOUT = 1.5V, Load = 25A, 500kHz, Airflow = 200LFM)

MxL7225 25A Dual Phase EVB User Manual MxL7225EVB Schematic

10/5/20 006UMR02 16

MxL7225EVB Schematic

Figure 18: EVB Schematic

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

Cin ceramic: - 4 @ 22uF, 25 V, X5R, 1210Cin bulk: - 1 @ 330 uF, 25 V, 14 mohm

Cout bulk: - 2 @ 470 uF, 2.5 V, 3 mohm - 2 optionalCout ceramic: - 5 @ 100 uF, 6.3 V, X5R, 1210

VIN

GND

VIN-

VOUT1

GND

VOUT1+

VOUT1-

VOUT2+

VOUT2

GND

VOUT2-

INTVCC

EXTVCC

TEMP

TEMP_PWR

VIN+

Cout bulk: - 2 @ 470 uF, 2.5 V, 3 mohm - 2 optionalCout ceramic: - 5 @ 100 uF, 6.3 V, X5R, 1210

INTVCC EXTVCC

VIN

INTVCC VIN

VOUTS1 (2)

VOUTS2 (2)

VOUT1+ (2)

VOUT2+ (2)

VOUT1 (2,3)

VOUT2 (2,3)

VOUT1- (2)

VOUT2- (2)

Title

Size Document Number Rev

Date: Sheet of

Draw

1060 Rincon CircleSan Jose, CA 95131

A

MxL7225 EVK Schematic

B1 4Wednesday, April 29, 2020

FCostescu

710-MxL7225-EVK-100-A

Title


Date: Sheet of

Draw


A



FCostescu

710-MxL7225-EVK-100-A

Title


Date: Sheet of

Draw


A



FCostescu

710-MxL7225-EVK-100-A

TC2

470uF

0603R310 ohm

J16

1575

0603R1

44.2 kOhms

U1-1MXL7225

VOUT1_10C1

VOUT1_11C2

VOUT1_12C3

VOUT1_6B2VOUT1_5B1

VOUTS1C5

VOUT1_7B3

VOUT1_8B4

VOUT1_9B5

VOUT1_0A1

VOUT1_1A2

VOUT1_2A3

VOUT1_3A4

VOUT1_4A5

VOUT2_0A8VOUT2_1A9

VOUT2_3A11

VOUT2_2A10

VOUT2_4A12VOUT2_5B8VOUT2_6B9VOUT2_7B10VOUT2_8B11VOUT2_9B12

VOUTS2C8

VOUT2_10C9VOUT2_11C10VOUT2_12C11VOUT2_13C12

VIN_23M2

VIN_24M3

VIN_25M4

VIN_26M5

VIN_27M6

VIN_28M7

VIN_29M8

VIN_30M9

VIN_31M10

VIN_32M11

VIN_13L2

VIN_14L3

VIN_15L4

VIN_16L5

VIN_17L6

VIN_18L7

VIN_19L8

VIN_20L9

VIN_21L10

VIN_22L11

VIN_7K2

VIN_8K3

VIN_9K4

VIN_10K9

VIN_11K10

VIN_12K11

VIN_1J2

VIN_2J3

VIN_3J4

VIN_4J9

VIN_5J10

VIN_6J11

VOUT1_13C4

INTV

CC

H8

EXTV

CC

J7

TEM

PJ6J7

1

0603R810 ohm

J551

1210C22

100uF

1210C8

100uF

TC13

330uF1210

C11

22uF

TC3

470uF

J17

1575

0805C14.7uF

TC9

DNP

Jack_575-4

J9

1

J541

0603R4DNP

0603R70 ohm

TC16

470uF

Jack_575-4

J11

1

J521

TC10

DNP

1210C12

22uF

J21

2

TC17

470uF

J6

15751210

C4

100uF

1210C18

100uFTC23

DNP

2512R6

DNP

J101

J8

1575

0603R910 ohm

1210C19

100uF

1210C5

100uF

1210C14

22uF

TC24

DNP

0603C331uF

2512R50

DNP

J41

1210C20

100uF

J181

1210C6

100uF

J151

J3

11

22

33

0603R210 ohm

J11

2

1210C15

22uF

2512R51

DNP

J531

1210C21

100uF

1210C7

100uF

J121

VIN

VOUT1-

VOUT2-

TEMP

VOUT2

VOUT1


10/5/20 006UMR02 17

Figure 19: EVB Schematic, Continued

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

RUN1

ON

OFF

SW2

TRACK1 - SOFT-START - jumper on pins 5-6 - from external - jumper on pins 3-4 - from VOUT1 - jumper on pins 1-2

PGOOD2

0V91V8

1V8

MODEPLL

CLKOUT

PGOOD1

0V9

120

PSM - jumper on pins 1-2FCM - jumper on pins 3-4FCM external - connect external clock to pins 5-6

1V2

TRACK1 - SOFT-START - jumper on pins 5-6 - from external - jumper on pins 3-4 - from VOUT2 - jumper on pins 1-2

1V0

60

OFF

1V51V0

0V8

FSET

1V5

SW1

1V2

ON

0V8

RUN2

PHASMDSEL

DIFF AMP

TRACK2 SEL TRACK1 SEL

TRACK2 EXT TRACK1 EXT

PSM

EXT CLK

(CFF1)CFF2

FCM

INTVCC INTVCC

VINVIN

INTVCC

INTVCC

INTVCCINTVCC

COMP2(3) COMP1 (3)

VOUT1(1,3) VOUT2 (1,3)

TRACK2(3) TRACK1 (3)

RUN2(3)RUN1 (3)

VOUT1+ (1,2)

VOUT2+ (1,2)

VOUTS1 (1)

VOUTS2 (1)

PGOOD1 (3)PGOOD2(3)

VFB1 (3)VFB2(3)

VOUT1+ (1,2)VOUT2+(1,2)

VOUT1- (1)

VOUT2- (1)

Title


Date: Sheet of

Draw


A


B2 4Thursday, July 30, 2020

FCostescu

710-MxL7225-EVK-100-A

Title


Date: Sheet of

Draw


A



FCostescu

710-MxL7225-EVK-100-A

Title


Date: Sheet of

Draw


A



FCostescu

710-MxL7225-EVK-100-A

0402C35DNP

J321

2

D1

0603 R3310 kohm

J26

1

3

5

2

4

6

0402R10DNP

J341

2

0603 R29150 kohm

0402R11DNP0402

C25DNP

0603R2160.4 kohm

TP2TP1

0603 R3090.9 kohms

J29

11

22

33

0402C27DNP

0402C26DNP

0402R48DNP

U1-4MXL7225

RUN1F5

RUN2F9

PGOOD1G9

PGOOD2G8

TRACK1E5

TRACK2D8

COMP1E6

COMP2E7

VFB1D5

VFB2D7

SW1G2

SW2G11

FSET

C6

MO

DE_

PLLI

NF4

PHAS

MD

G4

CLK

OU

TG

5

DIF

FPE8

DIF

FNE9

DIF

FOU

TF8

0603R62DNP

0603R3910 kohm

0603R16

121 kOhms

J22

1 2

0402C28DNP

0603

R20

60.4 kohm

0603R61DNP

0402C37

DNP

TP3TP1

0603R3230.1kohm

0603 R3830.1kohm

J431

2

J421

2

0402R49DNP

0603C300.1 uF

J281

2

0603

R19

60.4 kohm

0603

R55 DNP

0603R3760.4 kohm

J411

2

0603 C290.1 uF

0603

R17

6.04 kohm

0603

R42 DNP

0603R53

1 kohm

0603R35150 kohm

J401

2

0603R2260.4 kohm

0402C34DNP

J271

2

0603R2410 kohm

0603

R14

6.04 kohm

0603R52

1 kohm

J391

2

0402C36DNP

J241

2

0402

R27

30.1 Kohm

0603

R54 0 Ohm

J45

11

22

33

J381

2

0603

R41 0 Ohm

0603R186.04 kohm

J44

1

3

5

2

4

6

J331

2

0603 R3690.9 kohms

J30

11

22

33

0603R156.04 kohm

0603C32

DNP

J25

1

3

5

2

4

6

0603R1310 kohm

0603C31DNP

J231

2

0603 R3160.4 kohm

0402

R28

30.1 Kohm

0603

R263.32K0603

R253.32K

J351

2

J361

2

0603

R34 0 Ohm

TP1TP1

D2

0603R1210 kohm

J311

2

0603R23

10 kohm

0603

R40 DNP

COMP2 COMP1

CLK

OU

T

FSE

T

MO

DE

PLL PH

AS

EM

D

DIFFOUT

DIFFP

DIFFN

SW1SW2


10/5/20 006UMR02 18

Figure 20: EVB Schematic, Continued

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

OPTIONAL JUMPERS FOR SINGLEOUTPUT CONFIGURATION

LOAD TRANSIENT CIRCUIT

RUN1(2) RUN2 (2)

COMP1(2) COMP2 (2)

TRACK1(2) TRACK2 (2)

VFB1(2) VFB2 (2)

PGOOD1(2) PGOOD2 (2)

VOUT1(1,2) VOUT2 (1,2)

Title


Date: Sheet of

Draw


A


B3 4Monday, April 29, 2019

FCostescu

710-MxL7225-EVK-100-A

Title


Date: Sheet of

Draw


A



FCostescu

710-MxL7225-EVK-100-A

Title


Date: Sheet of

Draw


A



FCostescu

710-MxL7225-EVK-100-A

R56

DNP

J471

0402

R44

DNP

0603R60

10 Kohm

J601

0603C391uF

J481

R57

DNP

U1-2MXL7225

PGND_53M1

PGND_54M12

PGND_51L1

PGND_52L12

PGND_45K1

PGND_46K5

PGND_47K6

PGND_48K7

PGND_49K8

PGND_50K12

PGND_41J1

PGND_42J5

PGND_43J8

PGND_44J12

PGND_30H1

PGND_31H2

PGND_32H3

PGND_33H4

PGND_34H5

PGND_35H6

PGND_36H7

PGND_37H9

PGND_38H10

PGND_39H11

PGND_40H12

PGND_26G1

PGND_27G3

PGND_28G10

PGND_29G12

PGND_20F1

PGND_21F2

PGND_22F3

PGND_23F10

PGND_24F11

PGND_25F12

PGND_13E1

PGND_14E2

PGND_15E3

PGND_16E4

PGND_17E10

PGND_18E11

PGND_19E12

PGND_5D1

PGND_6D2

PGND_7D3

PGND_8D4

PGND_9D9

PGND_10D10

PGND_11D11

PGND_12D12

PGND_3B6

PGND_4B7

PGND_1A6

PGND_2A7

2512R58

0.01 ohm

J611

0603C411uF

0402

R45

DNP

J491

Q1SUD50N04

3

1

2

0603C401uF

0402

R46

DNP

NS1

DNP

J501

J581

2

U1-3MXL7225

SGND1D6SGND2C7

SGND3F6

SGND4F7

SGND5G6

SGND6G7

J461

0402

R43

DNP

0603C381uF

J591

2

0402

R47

DNP

J511

2512R59

DNP

IOSTEP

IOSTEP_CLK

MxL7225 25A Dual Phase EVB User Manual MxL7225EVB PCB Layers

10/5/20 006UMR02 19

MxL7225EVB PCB Layers

Figure 21: EVB PCB BGA Silkscreen Top Figure 22: EVB PCB BGA Layer 1

Figure 23: EVB PCB BGA Layer 2 Figure 24: EVB PCB BGA Layer 3

MxL7225 25A Dual Phase EVB User Manual MxL7225EVB PCB Layers

10/5/20 006UMR02 20

Figure 25: EVB PCB BGA Layer 4 Figure 26: EVB PCB BGA Layer 5

Figure 27: EVB PCB BGA Layer 6 Figure 28: EVB PCB BGA Silkscreen Bottom

MxL7225 25A Dual Phase EVB User Manual MxL7225EVB Bill of Materials

10/5/20 006UMR02 21

MxL7225EVB Bill of MaterialsTable 9: EVB BGA Bill of Materials

Item Qty Reference Designator Value Tol. Description Manufacturer /

Part NumberPackage Type

1 1 C1 4.7µF 10% CAP CER 4.7UF 16V 10% X7R 0805

Wurth Elektronics 885012207053 0805

2 4 C2, C3, C16, C17 470µF 20% CAP TANT POLY 470UF,

2.5V, 5mΩPanasonicETPF470M5H 4.3x7.3mm

3 10

C4, C5, C6, C7, C8, C18, C19, C20, C21, C22

100µF 10% CAP CER 100uF 6.3V 20% X5R 1210


4 4 C9, C10, C23, C24 DNP CAP TANT POLY DNP 4.3x7.3mm

5 4 C11, C12, C14, C15 22µF 10% CAP CER 22uF 10% 25V

X5R 1210Wurth Elektronics 885012109014 1210

6 1 C13 330µF 20% CAP., ALUM. ELECT., 330μF, 25V, 20%

Panasonic25SVPF330M SMD

7 6C25, C26, C27, C28, C34, C35

DNP CAP, Ceramic, SMD, DNP, 0402 0402

8 2 C29, C30 10nF 10% CAP CER, 0.01UF, 50V, 10%, X7R, 0603


9 2 C31, C32 DNP CAP, Ceramic, SMD, DNP, 0603 0603

10 5C33, C38, C39, C40, C41

1µF 10% CAP CER 1uF +/-10% 16V X7R 0603


11 2 C36, C37 DNP 0402

12 2 D1, D2 MMSZ5226B DIODE ZENER 3.3V 500MW SOD123

ON SemiconductorMMSZ5226B SMD

13 21

J1, J2, J22, J23, J24, J27, J28, J31, J32, J33, J34, J35, J36, J38, J39, J40, J41, J42, J43, J58, J59

HEADER_1X2_2.54 mm_M HDR,2.54mm Single Row/Male 1X2 GOLD

Wurth Elektronics61300211121 TH

14 4 J3, J29, J30, J45 HEADER_1X3_2.54 mm_M HDR,2.54mm Single Row/

Male 1X3 GOLDWurth Elektronics61300311121 TH

15 18

J4, J7, J10, J12, J15, J18, J46, J47, J48, J49, J50, J51, J52, J53, J54, J55, J60, J61

HEADER_1X1_2.54 mm_M HDR, Single Pin/Male 1X1 GOLD

Wurth Elektronics61300111121 TH

16 4 J6, J8, J16, J17 KFH Broaching Stud , KFH #10-

32, Phosphor BronzePennEngineeringKFH-032-10ET TH

17 2 J9, J11 CONN. BANANA JACK Keystone Electronics575-4


10/5/20 006UMR02 22

18 3 J25, J26, J44 HEADER_2x3_0.1" HDR, 0.1" Double Row/2x3 Wurth Elektronics61300621121 TH

19 1 Q1 SUD50N04 MOSFET N-CH 40V 14A TO-252

VishaySUD50N04 SMD

20 1 R1 44.2kΩ 1% RES SMD 44.2 KOHM 1% 1/10W 0603

KOA SpeerRK73H1JTTD4422F 0603

21 4 R2, R3, R8, R9 10Ω 1% RES, Thin Film, 10 ohm,

1%, 1/10W, SMD, 0603VishayCRCW060310R0FKEB 0603

22 4 R7, R34, R41, R54 0Ω 1%

RES, Thick Film, 0 ohm, 1%, 1/10W, 50V, SMD, 0603

YageoRC0603FR-070RL 0603

23 4 R6, R50, R51, R59 DNP 2512

24 9

R10, R11, R43, R44, R45, R46, R47, R48, R49

DNP 0402

25 5R12, R13, R23, R24, R60

10kΩ 1% RES SMD 10K OHM 1%1/10W 0603

PanasonicERJ-3EKF1002V 0603

26 2 R17, R18 6.04kΩ27 2 R14, R15 DNP 0603

28 1 R16 121kΩ 1% RES SMD 121K OHM 1% 1/10W 0603

YageoRC0603FR-07121KL 0603

29 6R19, R20, R21, R22, R31, R37

60.4kΩ 1% RES SMD 60.4K OHM 1% 1/10W 0603


30 8R4, R40, R42, R55, R61, R62

DNP 0603

31 2 R25, R26 3.32kΩ 1% RES SMD 3.32K OHM 1% 1/10W 0603

32 2 R27, R28 30.1kΩ 1% RES 30.1K OHM 1/16W 1% 0402 SMD

YageoRC0402FR-0730K1L 0402

33 2 R29, R35 150kΩ 1% RES, Thin Film, 150 Kohm, 1%, 1/10W, SMD, 0603

VishayCRCW0603150KFKEA 0603




YageoRC0603FR-0730K1L 0603

36 2 R33, R39 10kΩ 1% RES SMD 10K OHM 1% 1/10W 0603

YageoRC0603FR-0710KL 0603

37 2 R52, R53 1kΩ 1% RES SMD 1K OHM 1% 1/10W 0603

PanasonicERJ3EKF1001V 0603

38 1 R56 0Ω Resistor 0 Ohm Jumper 1W,SMD

VishayCRCW20100000Z0EFHP 2010

Table 9: EVB BGA Bill of Materials (Continued)




10/5/20 006UMR02 23

39 1 R57 DNP VishayCRCW20100000Z0EFHP 2010

40 1 R58 0.010Ω 1% RES., HIGH POWER, 0.01Ω, 2W, 1%, 2512

RohmPMR100HZPFU10L0 2512

41 1 R59 DNP 2512

42 1 U1 MXL7225_BGA MXL IC MXL7225 144P 16X16X5.21-BGA

MaxlinearMXL7225_BGA BGA

Table 9: EVB BGA Bill of Materials (Continued)



The content of this document is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment byMaxLinear, Inc. MaxLinear, Inc. assumes no responsibility or liability for any errors or inaccuracies that may appear in the informational content contained in thisguide. Complying with all applicable copyright laws is the responsibility of the user. Without limiting the rights under copyright, no part of this document may bereproduced into, stored in, or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, orotherwise), or for any purpose, without the express written permission of MaxLinear, Inc.

Maxlinear, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably beexpected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unlessMaxLinear, Inc. receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; (c)potential liability of MaxLinear, Inc. is adequately protected under the circumstances.

MaxLinear, Inc. may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Exceptas expressly provided in any written license agreement from MaxLinear, Inc., the furnishing of this document does not give you any license to these patents,trademarks, copyrights, or other intellectual property.

MaxLinear, the MaxLinear logo, and any MaxLinear trademarks, MxL, Full-Spectrum Capture, FSC, G.now, AirPHY, Puma, AnyWAN and the MaxLinear logo are allon the products sold, are all trademarks of MaxLinear, Inc. or one of MaxLinear’s subsidiaries in the U.S.A. and other countries. All rights reserved. Other companytrademarks and product names appearing herein are the property of their respective owners.

© 2020 MaxLinear, Inc. All rights reserved.

MxL7225 25A Dual Phase EVB User Manual Disclaimer

MaxLinear, Inc.5966 La Place Court, Suite 100Carlsbad, CA 92008760.692.0711 p.760.444.8598 f.

www.maxlinear.com

www.maxlinear.com

mxl7225 25a dual phase

Documents