78l08 regulator
TRANSCRIPT
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D3-Terminal Regulators
D Output Current up to 100 mA
D No External Components
DInternal Thermal-Overload Protection
D Internal Short-Circuit Current Limiting
D Direct Replacements for Fairchild A78L0Series
description
This series of fixed-voltage integrated-circuitvoltage regulators is designed for a wide range ofapplications. These applications include on-cardregulation for elimination of noise and distribution
problems associated with single-point regulation.In addition, they can be used with power-passelements to make high-current voltage regulators.One of these regulators can deliver up to 100 mA
of output current. The internal limiting andthermal-shutdown features of these regulatorsmake them essentially immune to overload. When
used as a replacement for a zener diode-resistorcombination, an effective improvement in outputimpedance can be obtained, together with lowerbias current.
electrical characteristics at specified virtual junction temperature, VI = 1 V, I = 40 mA (unlessotherwise noted)
PARAMETER TEST CONDITIONS T UNITMIN TYP MAX
25C
Output voltage
o Full range V
IO = 1 mA to 70 mA Full range
Input VI =
voltage regulation VI =
Ripple rejection VI = f = 120 Hz 25C dB
Output IO = 1 mA to 100 mA
voltage regulation IO = 1 mA to 40 mA
Output
noise voltagef = 10 Hz to 100 kHz 25C V
Dropout voltage 25C 1.7 V
25C 6
125C 5.5
Bias VI = 1.5
current change IO = 1 mA to 40 mArange
0.1
Pulse-testing techniques maintain TJ as close to TA as possible. Thermal effects must be taken into account separately. All characteristics are
measured with a 0.33-F capacitor across the input and a 0.1-F capacitor across the output. Full range for the 78L05 is T J = 0C to 70C
Wing Shing Computer Components Co., (H.K.)Ltd. Tel:(852)2341 9276 Fax:(852)2797 8153Homepage: http://www.wingshing.com E-mail: [email protected]
Positive-Voltage Regulators
o
I =1mA to 40mA, V =10.5 to 23V
25 C
25 C
Bias current
Full
mV
mV
mA
mA
2-1
78L08
8
78L08
7.7 8 8.3
8 8.47.6
7.6 8 8.4
42 175
36 125
4637
18 80
10 40
54
4
i
10.5V to 23V
11V to 23V
13V to 23V
11V to 23V
INPUT
COMMON
OUTPUT
TO-92
OUTP GND INPUT
SOT-89
78L08ACZ
78L08CPK
OC
I
4
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UNIT
pu v , I
CVirtual junction temperature range, TJ 150
CLead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260
CStorage temperature range, Tstg 65 to 150
MIN MAX UNIT
pu v , I
Output current, IO100 mA
Operating virtual junction temperature, TJ 0 C70
PARAMETER
absolute maximum ratings over operating temperature range (unless othewise noted)
2-2
V
recommended operating conditions
90um
90um
85um
90um
95um
100um
1
23
Pad Location 78L
Chip size 1.0 x 1.2 mm
Pad N
1
2
3
Y (um)X (um)Pad Name
Input
Output
Ground 95820535
10010101015
30
78L08
78L08
WS
78L08
10.5 23
08
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