79L05 Datasheet, PDF (1/3 Pages) Wing Shing Computer Components – Negative-Voltage Regulators

79L05
D 3-Terminal Regulators
D Output Current Up to 100 mA
D No External Components Required
D Internal Thermal-Overload Protection
D Internal Short-Circuit Current Limiting
D Direct Replacement for Motorola MC79L00
Series
Negative-Voltage Regulators
C
I
O
TO–92
79L05ACZ
OUTPUT
INPUT
COMMON
description
This series of fixed negative-voltage integrated-circuit
voltage regulators is designed for a wide range of
applications. These include on-card regulation for
SOT-89
79L05CPK COMMON _{INPUT OUTPUT}
elimination of noise and distribution problems
associatedwith single-point regulation. In addition,
they can be used to control series pass elements to make high-current voltage-regulator circuits. One of these
regulators can deliver up to 100 mA of output current. The internal current-limiting and thermal-shutdown features
make them essentially immune to overload. When used as a replacement for a zener-diode and resistor combination,
these devices can provide effective improvement in output impedance of two orders of magnitude, with lower bias
current.
electrical characteristics at specified virtual junction temperature, V_I =-10 V, I = 40 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
Output voltage
Input
voltage regulation
Ripple rejection
Output
voltage regulation
Output
noise voltage
Dropout voltage
V 7 V to 20 V I 1 mA to 40 mA
Io=1mA to 40mA,Vi=-7V to -20V
IO = 1 mA to 70 mA
VI = -7V to -20V
VI = -8V to -20V
VI = -8V to -18V f = 120 Hz
IO = 1 mA to 100 mA
IO = 1 mA to 40 mA
f = 10 Hz to 100 kHz
BBiiaassccuurrrernetnt
Bias
current change
VI = -8V to -20V
IO = 1 mA to 40 mA
TJ^‡
25°C
Full range
Full range
2²5^52°5C^C°C
25°C
2²5^5°C^C
25°C
25°C
25°C
125°C
Fulll range
MIN
-4.8
-4.75
-4.75
41
79L05
TYP
-5
15
49
20
10
40
1.7
UNIT
MAX
-5.2
-5.25 V
-5.25
150
mmVV
100
dB
60
30 ^mmVV
µV
V
6
mA
5.5 _mA
1.5
0.1 ^mmAA
‡ _{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-µF capacitor across the input and a 0.1-µF capacitor across the output. Full range for the 79L05 is T_J = 0°C to 70°C
Wing Shing Computer Components Co., (H.K.)Ltd.
Homepage: http://www.wingshing.com
3-1
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