Datasheet

L78L00 SERIES
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Table 12: Electrical Characteristics Of L78L18C (refer to the test circuits, T
J
= 0 to 125°C, V
I
= 27V,
I
O
= 40 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise specified).
Table 13: Electrical Characteristics Of L78L20C (refer to the test circuits, T
J
= 0 to 125°C, V
I
= 29V,
I
O
= 40 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage T
J
= 25°C 16.6 18 19.4 V
V
O
Output Voltage I
O
= 1 to 40 mA V
I
= 22 to 33 V 16.2 19.8 V
I
O
= 1 to 70 mA V
I
= 27 V 16.2 19.8
∆V
O
Line Regulation V
I
= 22 to 33 V T
J
= 25°C 320 mV
V
I
= 22 to 33 V T
J
= 25°C 270
∆V
O
Load Regulation I
O
= 1 to 100 mA T
J
= 25°C 170 mV
I
O
= 1 to 40 mA T
J
= 25°C 85
I
d
Quiescent Current T
J
= 25°C 6.5 mA
T
J
= 125°C 6 mA
∆I
d
Quiescent Current Change I
O
= 1 to 40 mA 0.2 mA
V
I
= 23 to 33 V 1.5
eN Output Noise Voltage B =10Hz to 100KHz T
J
= 25°C 120 µV
SVR Supply Voltage Rejection V
I
= 23 to 33 V f = 120Hz
I
O
= 40 mA T
J
= 25°C
32 38 dB
V
d
Dropout Voltage 1.7 V
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage T
J
= 25°C 18.4 20 21.6 V
V
O
Output Voltage I
O
= 1 to 40 mA V
I
= 24 to 33 V 18 22 V
I
O
= 1 to 70 mA V
I
= 29 V 18 22
∆V
O
Line Regulation V
I
= 22.5 to 34 V T
J
= 25°C 330 mV
V
I
= 24 to 34 V T
J
= 25°C 280
∆V
O
Load Regulation I
O
= 1 to 100 mA T
J
= 25°C 180 mV
I
O
= 1 to 40 mA T
J
= 25°C 90
I
d
Quiescent Current T
J
= 25°C 6.5 mA
T
J
= 125°C 6 mA
∆I
d
Quiescent Current Change I
O
= 1 to 40 mA 0.2 mA
V
I
= 25 to 33 V 1.5
eN Output Noise Voltage B =10Hz to 100KHz T
J
= 25°C 120 µV
SVR Supply Voltage Rejection V
I
= 25 to 35 V f = 120Hz
I
O
= 40 mA T
J
= 25°C
31 38 dB
V
d
Dropout Voltage 1.7 V