Wing Shing Electronic Co manufacturer of power semiconductors 79L05CPK, 79L05ACZ Datasheet
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
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
elimination of noise and distribution problems
associated with 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 ef
current.
TO–92
electrical characteristics at specified virtual junction temperature, VI = 10 V, I = 40 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
T
J
‡
UNIT
J
MIN TYP MAX
V 7Vto20V
I 1 mA to 40 mA
25°C
Output voltage
V 7 V to 20 V
I 1 A t 40 A
Full range
V
IO = 1 mA to 70 mA
Full range
Input
VI =
25°C
150
mV
voltage regulation
VI =
25°C
100
mV
Ripple rejection VI = f = 120 Hz 25°C 41 49 dB
Output
IO = 1 mA to 100 mA
25°C
60
mV
voltage regulation
IO = 1 mA to 40 mA
25°C
30
mV
Output
noise voltage
f = 10 Hz to 100 kHz 25°C µV
Dropout voltage 25°C
1.7
V
Bias current
25°C 6
mA
Bias c rrent
125°C 5.5
mA
Bias
VI =
Full range
1.5
mA
current change
IO = 1 mA to 40 mA
F ll
range
0.1
mA
‡
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 7
J
= 0°C to 70°C
Wing Shing Computer Components Co., (H.K.)Ltd. Tel:(852)2341 9276 Fax:(852)2797 8153
Homepage: http://www.wingshing.com E-mail: wsccltd@hkstar.com
equivalent schematic
OUTPUT
INPUT
COMMON
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Input voltage:79L05 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air, case, or virtual junction temperature °C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1.6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
recommended operating conditions
MIN MAX UNIT
79L05
–7
–20
Input voltage, V
I
V
Output current, I
O
100 mA
Operating virtual junction temperature, T
J
0 °C
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