SERIES
LM78LXX
Positive-Voltage Regulators
LM78L15
electrical characteristics at specified virtual junction temperature,
V
I
=23V, l
O
=40mA (unless otherwise noted)
P AR AMETER
TEST CONDITIONS*
25°C
Output voltage**
I
O
= 1 mA to 40mA,
V
I
= 1 /.5V to JUV
I
O
= 1 mA to 70mA
V
I
= 17. 5V to 30V
V
I
= 19V to 30V
V
I
= 18.5V to 28.5V, f= 120Hz
I
O
= 1 mA to 100mA
I
O
= 1 mA to 40mA
f= 10Hz to 100KHz
0°C to 125°C
25°C
0°C to 125°C
25°C
25"G
25°C
25°C
125°C
0°C to 1 25°C
34
MIN
14.4
14.25
14.25
LM7
8 L 1 5
TYP
MAX
15
15.6
15
15
65
58
39
25
15
82
1.7
4.6
15.75
15.75
300
250
150
75
UNIT
V
Input regulation
Ripple rejection
Output regulation
Output noise voltage
Dropout voltage
Bias current
Bias current change
mV
dB
mV
µV
V
V
I
= 19V to 30V
I
O
= 1 mA to 40mA
6.5
6
1.5
0.1
mA
LM78L18
electrical characteristics at specified virtual junction temperature, V
I
= 26V,
l
O
=40mA (unless otherwise noted)
PARAMETER
TEST CONDITIONS*
25°C
Output voltage**
I
O
= 1 mA to 40mA,
V
I
= 20.5V to 33V
I
O
= 1 mA to 70mA
V
I
= 20.5V to 33V
V
I
= 22V to 33V
V
I
= 21.5V to 31.5V,
f= 120Hz
I
O
= 1 mA to 1 00mA
I
O
= 1 mA to 40mA
f= 10Hz to 100 KHz
0°C to 125°C
25°C
0°C to 1 25°C
25°C
25°C
25°C
25°C
125°C
0°C to 1 25°C
32
MIN
17.3
17.1
17.1
LM78L18
TYP
18
18
18
70
64
36
27
19
89
1.7
4.7
180
90
MAX
18.7
18.9
18.9
360
300
UNIT
V
Input regulation
Ripple rejection
Output regulation
Output noise voltage
Dropout voltage
Bias current
Bias current change
mV
dB
mV
µV
V
V
I
= 22V to 33V
I
O
= 1 mA to 40mA
6.5
6
1.5
0.1
mA
* Pulse testing techniques are used to maintain the junction temperature as close to the ambient
temperature as possible. Thermal effects must be taken into account separately. All characteristics are
measured with a 0.33µF capacitor across the input and a 0.1µF capacitor across the output.
** This specification applies only For dc power dissipation permitted by absolute maximum ratings.
5
HN [ NANJING HONANO ELECTRONIC CO., LTD. ]
