Datasheet

Electrical characteristics L79L
8/26 DocID2511 Rev 17
Refer to the test circuits, V
I
= - 19 V, I
O
= 40 mA, C
I
= 0.33 µF, C
O
= 0.1 µF, T
J
= 0 to 125 °C
for L79L12AC, T
J
= -40 to 125 °C for L79L12AB, unless otherwise specified.
Table 5. Electrical characteristics of L79L12AC and L79L12AB
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C -11.5 -12 -12.5 V
V
O
Output voltage
I
O
= 1 to 40 mA, V
I
= -14.5 to -27 V -11.4 -12.6
V
I
O
= 1 to 70 mA, V
I
= -19 V -11.4 -12.6
DV
O
Line regulation
V
I
= -14.5 to -27 V, T
J
= 25°C 250
mV
V
I
= -16 to -27 V, T
J
= 25°C 200
DV
O
Load regulation
I
O
= 1 to 100 mA, T
J
= 25°C 100
mV
I
O
= 1 to 40 mA, T
J
= 25°C 50
I
d
Quiescent current
T
J
= 25°C 6.5 mA
T
J
= 125°C 6 mA
DI
d
Quiescent current change
I
O
= 1 to 40 mA 0.1
mA
V
I
= -16 to -27 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25°C 80 µV
SVR Supply voltage rejection
V
I
= -15 to -25V, f = 120 Hz I
O
= 40 mA,
T
J
= 25°C
37 42 dB
V
d
Dropout voltage 1.7 V