L7900AC View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L7900AC' PDF : 13 Pages View PDF
L7900AC
ELECTRICAL CHARACTERISTICS FOR L7922A (refer to the test circuits, Tj = 0 to 125 oC,
Vi = -31V, Io = 500 mA, Ci = 2.2 µF, Co = 1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Vo Output Voltage
Tj = 25 oC
-21.5 -22 -22.4
Vo Output Voltage
∆Vo* Line Regulation
∆Vo* Load Regulation
Id Quiescent Current
Io = -5 mA to -1 A Po ≤ 15 W
Vi = -26 to -37 V
Vi = -25 to -37 V Tj = 25 oC
Vi = -28 to -34 V Tj = 25 oC
Io = 5 to 1500 mA Tj = 25 oC
Io = 250 to 750 mA Tj = 25 oC
Tj = 25 oC
-21.1 -22 -22.8
4 40
2 20
4 40
2 20
3
∆Id Quiescent Current Change Io = 5 to 1000 mA
0.5
∆Id Quiescent Current Change Vi = -26 to -37 V
1
∆Vo Output Voltage Drift
Io = 5 mA
-1.1
∆T
eN Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
375
SVR Supply Voltage Rejection
Vd Dropout Voltage
∆Vi = 10 V f = 120 Hz
Io = 1 A
Tj = 25 oC
∆VO = 100 mV
54
60
1.1
Is c Short Circuit Current
1.1
Iscp Short Circuit Peak Current
Tj = 25 oC
2.2
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
m V/ oC
µV
dB
V
A
A
ELECTRICAL CHARACTERISTICS FOR L7924A (refer to the test circuits, Tj = 0 to 125 oC,
Vi = -33V, Io = 500 mA, Ci = 2.2 µF, Co = 1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Vo Output Voltage
Tj = 25 oC
-23.5 -24 -24.5
Vo Output Voltage
∆Vo* Line Regulation
∆Vo* Load Regulation
Id Quiescent Current
Io = -5 mA to -1 A Po ≤ 15 W
Vi = -27 to -38 V
Vi = -27 to -38 V Tj = 25 oC
Vi = -30 to -36 V Tj = 25 oC
Io = 5 to 1500 mA Tj = 25 oC
Io = 250 to 750 mA Tj = 25 oC
Tj = 25 oC
-23
-24
- 25
4 80
2 40
4 80
2 40
3
∆Id Quiescent Current Change Io = 5 to 1000 mA
0.5
∆Id Quiescent Current Change Vi = -27 to -38 V
1
∆Vo Output Voltage Drift
Io = 5 mA
-1
∆T
eN Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
400
SVR Supply Voltage Rejection
Vd Dropout Voltage
∆Vi = 10 V f = 120 Hz
Io = 1 A
Tj = 25 oC
∆VO = 100 mV
54
60
1.1
Is c Short Circuit Current
1.1
Iscp Short Circuit Peak Current
Tj = 25 oC
2.2
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
m V/ oC
µV
dB
V
A
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account
separately. Pulce testing with low duty cycle is used.
7/11
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