NIKO-SEM
Three-Terminal
Positive-Voltage Regulator
L78L18
ELECTRICAL SPECIFICATIONS (L78L18)
(VI = 25V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, 0 °C < TJ < +125 °C unless otherwise noted.)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
Output Voltage
Line Regulation
TJ = +25 °C
TJ = +25 °C
21V ≤ VI ≤ 33V
22V ≤ VI ≤ 33V
17.3 18 18.7 V
145 300 mV
135 250
Load Regulation
TJ = +25 °C
1.0 mA ≤ IO ≤ 100 mA
1.0 mA ≤ IO ≤ 40 mA
30 170 mV
15 85
Output Voltage
21V ≤ VI ≤ 33V, 1.0 mA ≤ IO ≤ 40 mA 17.1
21V ≤ VI ≤ VMAX, 1.0 mA ≤ IO ≤ 70 mA 17.1
18.9 V
18.9
Input Bias Current
TJ = +25 °C
2.0 6.0 mA
Input Bias Current Change 21V ≤ VI ≤ 33V
1.0 mA ≤ IO ≤ 40 mA
1.5 mA
0.1
Output Noise Voltage
TA = +25 °C, 10 Hz ≤ f ≤ 100 KHz
150
µV
Ripple Rejection
Dropout Voltage
TJ = +25 °C, f = 120 Hz
23V ≤ VI ≤ 33V
TJ = +25 °C
34 48
dB
1.7
V
3
MAR-04-2002