78LXX
Electrical Characteristics 78L15A
Electrical characteristics at specified virtual junction temperature, VI= 23V, IO = 40mA (unless otherwise noted)
Parameter
Test Conditions*
78L15A
Units
Min
Typ
Max
Output voltage**
14.4
15
15
15.6
25°C
0°C to 125°C
V
IO= 1mA to 40mA,
VI= 17.5V to 30V
IO= 1mA to 70mA
VI= 17.5V to 30V
VI= 19V to 30V
VI= 18.5V to 28.5V, f= 120Hz
IO= 1mA to 100mA
14.25
14.25
15.75
15
65
58
39
25
15
82
1.7
4.6
15.75
300
250
Input regulation
mV
25°C
Ripple rejection
Output regulation
34
dB
mV
0°C to 125°C
25°C
150
75
IO= 1mA to 40mA
Output noise voltage
Dropout voltage
Bias current
f= 10Hz to 100KHz
µV
V
25°C
25°C
25°C
6.5
6
mA
125°C
Bias current change
VI= 19V to 30V
IO= 1mA to 40mA
1.5
0.1
0°C to 125°C
Electrical Characteristics 78L18A
Electrical characteristics at specified virtual junction temperature, VI= 26V, IO = 40mA (unless otherwise noted)
Parameter
Test Conditions*
78L18A
Units
Min
Typ
Max
Output voltage**
17.3
18
18
18.7
25°C
0°C to 125°C
V
IO= 1mA to 40mA,
17.1
18.9
VI= 20.5V to 33V
IO= 1mA to 70mA
VI= 20.5V to 33V
VI= 22V to 33V
17.1
18
70
64
36
18.9
360
300
Input regulation
mV
25°C
Ripple rejection
VI= 21.5V to 31.5V,
32
dB
0°C to 125°C
25°C
f= 120Hz
Output regulation
IO= 1mA to 100mA
IO= 1mA to 40mA
f= 10Hz to 100 KHz
27
19
89
1.7
4.7
180
90
mV
Output noise voltage
Dropout voltage
Bias current
µV
V
25°C
25°C
25°C
6.5
6
mA
125°C
Bias current change
VI= 22V to 33V
IO= 1mA to 40mA
1.5
0.1
0°C to 125°C
*
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.
BEIJING ESTEK ELECTRONICS CO.,LTD
6
ESTEK [ Estek Electronics Co. Ltd ]
