78L15
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
Direct Replacements for Fairchild
µA78L
15
Series
Positive-Voltage Regulators
O
C
I
TO-92
78L15ACZ
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.
INPUT
COMMON
OUTPUT
OUTPUT GND
INPUT
SOT-89
78L15CPK
electrical characteristics at specified virtual junction temperature, V
I
=
23V, I
o
=40mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ
‡
MIN
25°C
Output voltage
7 to 20V t 20 V
to
mA
V 7 V
I 401 A t 40
I
O
= 1mA to 40mA, V
I
=17.5 to 30V
IO = 1 mA to 70 mA
V
I = 17.5V to 30V
VI =
19V to 30V
VI =
18.5V to 28.5V,
f = 120 Hz
IO = 1 mA to 100 mA
IO = 1 mA to 40 mA
f = 10 Hz to 100 kHz
A
Full range
Full range
25°C
25 C
25°C
25°C
25 C
25°C
25°C
25°C
125°C
VI =
19V to 30V
IO = 1 mA to 40 mA
34
78L15
TYP
MAX
15.6
15.75
UNIT
14.4
14.25
15
15
V
14.25
15
65
58
39
25
15
82
1.7
4.6
15.75
300
250
dB
150
75
mV
mV
µV
V
6.5
mA
mA
mA
mA
Input
voltage regulation
Ripple rejection
Output
voltage regulation
Output
noise voltage
Dropout voltage
mV
mV
Bias
current
current
Bias c rrent
Bias
current change
Full
range
F ll
Full
6
1.5
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-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
Wing Shing Computer Components Co., (H.K.)Ltd.
Homepage:
http://www.wingshing.com
Tel:(852)2341 9276 Fax:(852)2797 8153
E-mail: wsccltd@hkstar.com
2-1
WINGS [ WING SHING COMPUTER COMPONENTS ]
