L7900
ELECTRICAL CHARACTERISTICS FOR L7922C
(refer to the test circuits, T
j
= 0 to 150
o
C,
V
i
= -31V, I
o
= 500 mA, C
i
= 2.2
µF,
C
o
= 1
µF
unless otherwise specified)
Symbol
V
o
V
o
∆
V
o
*
∆V
o
*
I
d
∆I
d
∆I
d
∆
V
o
∆
T
e
N
SVR
V
d
I
s c
I
scp
Parameter
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Supply Voltage Rejection
Dropout Voltage
Short Circuit Current
Short Circuit Peak Current
T
j
= 25 C
o
Test Conditions
T
j
= 25 C
I
o
= -5 mA to -1 A
V
i
= -26 to -37 V
V
i
= -25 to -37 V
V
i
= -28 to -34 V
P
o
≤
15 W
T
j
= 25
o
C
T
j
= 25
o
C
T
j
= 25 C
T
j
= 25
o
C
o
o
Min.
-21.1
-20.9
Typ.
-22
-22
Max.
-22.9
-23.1
440
220
440
220
3
0.5
1
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
mV/
o
C
µ
V
dB
V
A
A
I
o
= 5 to 1500 mA
I
o
= 250 to 750 mA
T
j
= 25 C
I
o
= 5 to 1000 mA
V
i
= -26 to -37 V
I
o
= 5 mA
o
-1.1
375
54
60
1.1
1.1
2.2
B = 10Hz to 100KHz T
j
= 25
o
C
∆V
i
= 10 V
f = 120 Hz
o
I
o
= 1 A
T
j
= 25 C
∆V
O
= 100 mV
ELECTRICAL CHARACTERISTICS FOR L7924C
(refer to the test circuits, T
j
= 0 to 150
o
C,
V
i
= -33V, I
o
= 500 mA, C
i
= 2.2
µF,
C
o
= 1
µF
unless otherwise specified)
Symbol
V
o
V
o
∆V
o
*
∆
V
o
*
I
d
∆I
d
∆
I
d
∆
V
o
∆
T
e
N
SVR
V
d
I
s c
I
scp
Parameter
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Supply Voltage Rejection
Dropout Voltage
Short Circuit Current
Short Circuit Peak Current
T
j
= 25
o
C
T
j
= 25
o
C
I
o
= -5 mA to -1 A
V
i
= -27 to -38 V
V
i
= -27 to -38 V
V
i
= -30 to -36 V
P
o
≤
15 W
T
j
= 25 C
T
j
= 25
o
C
T
j
= 25
o
C
T
j
= 25
o
C
o
Test Conditions
Min.
-23
-22.8
Typ.
-24
-24
Max.
-25
-25.2
480
240
480
240
3
0.5
1
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
mV/
o
C
µV
dB
V
A
A
I
o
= 5 to 1500 mA
I
o
= 250 to 750 mA
T
j
= 25 C
I
o
= 5 to 1000 mA
V
i
= -27 to -38 V
I
o
= 5 mA
o
-1
400
54
60
1.1
1.1
2.2
B = 10Hz to 100KHz T
j
= 25
o
C
∆V
i
= 10 V
f = 120 Hz
o
I
o
= 1 A
T
j
= 25 C
V
O
= 100 mV
∆
* Load and line regulation are specified at constant junction temperature. Changes in V
o
due to heating effects must be taken into account
separately. Pulce testing with low duty cycle is used.
7/13
STMICROELECTRONICS [ STMICROELECTRONICS ]
