Datasheet

DocID2511 Rev 17 9/26
L79L Electrical characteristics
26
Refer to the test circuits, V
I
= - 23 V, I
O
= 40 mA, C
I
= 0.33 µF, C
O
= 0.1 µF, T
J
= 0 to 125 °C
for L79L15AC, T
J
= -40 to 125 °C for L79L15AB, unless otherwise specified.
Table 6. Electrical characteristics of L79L15AC and L79L15AB
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C -14.4 -15 -15.6 V
V
O
Output voltage
I
O
= 1 to 40 mA, V
I
= -17.5 to -30 V -14.25 -15.75
V
I
O
= 1 to 70 mA, V
I
= -23 V -14.25 -15.75
DV
O
Line regulation
V
I
= -17.5 to -30 V, T
J
= 25°C 300
mV
V
I
= -20 to -30 V, T
J
= 25°C 250
DV
O
Load regulation
I
O
= 1 to 100 mA, T
J
= 25°C 150
mV
I
O
= 1 to 40 mA, T
J
= 25°C 75
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
= -20 to -30 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25°C 90 µV
SVR Supply voltage rejection
V
I
= -18.5 to -28.5.V, f = 120Hz
I
O
= 40 mA, T
J
= 25°C
34 39 dB
V
d
Dropout voltage 1.7 V