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L7900 Datasheet(PDF) 6 Page - STMicroelectronics

No. de Pieza. L7900
Descripción  Negative voltage regulators
Descarga  24 Pages
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Fabricante  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
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L7900 Datasheet(HTML) 6 Page - STMicroelectronics

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Electrical characteristics
L7900 series
6/24
4
Electrical characteristics
Table 3.
Electrical characteristics of L7905C (refer to the test circuits, TJ = 0 to 125°C, VI = -10V,
IO = 500 mA, CI = 2.2 µF, CO = 1 µF unless otherwise specified)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
-4.8
-5
-5.2
V
VO
Output voltage
IO = -5 mA to -1 A, PO ≤15 W
VI = -8 to -20 V
-4.75
-5
-5.25
V
∆VO(1)
1.
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.
Line regulation
VI = -7 to -25 V, TJ = 25°C
100
mV
VI = -8 to -12 V, TJ = 25°C
50
∆VO(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25°C
100
mV
IO = 250 to 750 mA, TJ = 25°C
50
Id
Quiescent current
TJ = 25°C
3
mA
∆Id
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = -8 to -25 V
1.3
∆VO/∆T Output voltage drift
IO = 5 mA
-0.4
mV/°C
eN
Output noise voltage
B = 10Hz to 100KHz, TJ = 25°C
100
µV
SVR
Supply voltage rejection
∆VI = 10 V, f = 120Hz
54
60
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25°C, ∆VO = 100 mV
1.4
V
Isc
Short circuit current
2.1
A


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