78L05
D
D
D
D
D
D
3-Terminal Regulators
Output Current up to 100 mA
No External Components
Internal Thermal-Overload Protection
Internal Short-Circuit Current Limiting
Provided Pb-Free packages from the end
of 2004
Positive-Voltage Regulators
78L05ACZ-Bulk
78L05ACZM-Ammo
SO-8
78L05ACM
O
C
I
TO-92
INPUT
COMMON
OUTPUT
description
This series of fixed-voltage integrated-circuit
voltage regulators is designed for a wide range of
applications. These applications include on-card
regulation for elimination of noise and distribution
problems associated with single-point regulation.
In addition, they can be used with power-pass
elements to make high-current voltage regulators.
One of these regulators can deliver up to 100 mA
of output current. The internal limiting and
thermal-shutdown features of these regulators
make them essentially immune to overload. When
used as a replacement for a zener diode-resistor
combination, an effective improvement in output
impedance can be obtained, together with lower
bias current.
OUTPUT
GND
INPUT
SOT-89
78L05CPK
electrical characteristics at specified virtual junction temperature, V
I
= 10 V, I
o
= 40 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ
‡
MIN
25°C
Output voltage
V
to
I
A
7 V t 20 V
1 mA t 40 mA
A to
I
o
=1mA to 40MA, V =7V to20V
Full range
Full range
25°C
25 C
f = 120 Hz
25°C
25°C
25 C
25°C
25°C
25°C
125°C
VI = 8 V to 20 V
IO = 1 mA to 40 mA
41
4.8
4.75
4.75
78L05
TYP
5
MAX
5.2
5.25
5.25
150
100
60
30
UNIT
5
5
32
26
49
15
8
42
1.7
3.8
V
Input
voltage regulation
Ripple rejection
Output
voltage regulation
Output
noise voltage
Dropout voltage
IO = 1 mA to 70 mA
VI = 7 V to 20 V
VI = 8 V to 20 V
VI = 8 V to 18 V,
mV
mV
dB
mV
mV
µV
V
IO = 1 mA to 100 mA
IO = 1 mA to 40 mA
f = 10 Hz to 100 kHz
Bias
current
current
Bias c rrent
Bias
current change
6
5.5
1.5
0.1
mA
mA
mA
mA
Full
range
F ll
Full
‡ 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 78L05 is T J = 0°C to
70°C
1
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