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L7905AC Datenblatt(PDF) 6 Page - STMicroelectronics

Teilenummer L7905AC
Bauteilbeschribung  2% NEGATIVE VOLTAGE REGULATORS
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L7900AC SERIES
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Table 9: Electrical Characteristics Of L7918A (refer to the test circuits, TJ = 0 to 125°C, VI = -27V,
IO = 500 mA, CI = 2.2 µF, CO = 1 µF unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Table 10: electrical characteristics of L7920A (refer to the test circuits, TJ = 0 to 125°C, VI = -29V,
IO = 500 mA, CI = 2.2 µF, CO = 1 µF unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
TJ = 25°C
-17.64
-18
-18.36
V
VO
Output Voltage
IO = -5 mA to -1 A
PO ≤ 15W
VI = -22 to -33 V
-17.3
-18
-18.7
V
∆V
O(*)
Line Regulation
VI = -21 to -33 V
TJ = 25°C
360
mV
VI = -24 to -30 V
TJ = 25°C
180
∆V
O(*)
Load Regulation
IO = 5 mA to 1.5 A
TJ = 25°C
360
mV
IO = 250 to 750 mA
TJ = 25°C
180
Id
Quiescent Current
TJ = 25°C
3
mA
∆I
d
Quiescent Current Change
IO = 5 mA to 1 A
0.5
mA
VI = -22 to -33 V
1
∆V
O/∆T
Output Voltage Drift
IO = 5 mA
-1
mV/°C
eN
Output Noise Voltage
B = 10Hz to 100KHz
TJ = 25°C
300
µV
SVR
Supply Voltage Rejection
∆V
I = 10 V f = 120Hz
54
60
dB
Vd
Dropout Voltage
IO = 1 A
TJ = 25°C
∆V
O = 100
mV
1.1
V
Isc
Short Circuit Current
1.1
A
Iscp
Short Circuit Peak Current
TJ = 25°C
2.2
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
TJ = 25°C
-19.6
-20
-20.4
V
VO
Output Voltage
IO = -5 mA to -1 A
PO ≤ 15W
VI = -24 to -35 V
-19.2
-20
-20.8
V
∆V
O(*)
Line Regulation
VI = -23 to -35 V
TJ = 25°C
400
mV
VI = -26 to -32 V
TJ = 25°C
200
∆V
O(*)
Load Regulation
IO = 5 mA to 1.5 A
TJ = 25°C
400
mV
IO = 250 to 750 mA
TJ = 25°C
200
Id
Quiescent Current
TJ = 25°C
3
mA
∆I
d
Quiescent Current Change
IO = 5 mA to 1 A
0.5
mA
VI = -24 to -35 V
1
∆V
O/∆T
Output Voltage Drift
IO = 5 mA
-1.1
mV/°C
eN
Output Noise Voltage
B = 10Hz to 100KHz
TJ = 25°C
350
µV
SVR
Supply Voltage Rejection
∆V
I = 10 V f = 120Hz
54
60
dB
Vd
Dropout Voltage
IO = 1 A
TJ = 25°C
∆V
O = 100
mV
1.1
V
Isc
Short Circuit Current
0.9
A
Iscp
Short Circuit Peak Current
TJ = 25°C
2.2
A


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