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L4940 데이터시트(PDF) 5 Page - STMicroelectronics

부품명 L4940
상세설명  VERY LOW DROP 1.5 A REGULATORS
PDF  13 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4940 데이터시트(HTML) 5 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS FOR L4940V10 (refer to the test circuits, Tj =25
oC,
Vi = 12V, Ci = 0.1
µF, Co =22 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Io = 500 mA
9.8
10
10.2
V
Vo
Output Voltage
Io = 5 mA to 1500 mA
Vi = 11.7 to 16 V
9.6
10
10.4
V
Vi
Operating Input Voltage
Io = 5 mA
17
V
∆Vo
Line Regulation
Io = 5 mA
Vi = 11to 17V
3
8
mV
∆Vo
Load Regulation
Io = 5 to 1500 mA
Io = 500 to 1000 mA
15
10
35
20
mV
IQ
Quiescent Current
Io =5 mA
Io = 1.5 A Vi = 11.7 V
4
30
8
50
mA
∆IQ
Quiescent Current Change
Io =5 mA
Io = 1.5 A Vi = 11.7 to 16 V
2
13
mA
∆Vo
∆T
Output Voltage Drift
1
mV/
oC
SVR
Supply Voltage Rejection
Io = 1 A
f = 120 Hz
56
62
dB
Vd
Dropout Voltage
Io = 0.5 A
Io = 1.5 A
200
500
400
900
mV
Isc
Short Circuit Current
Vi =14 V
Vi = 11.7 V
2
2.2
2.7
2.9
A
A
ELECTRICAL CHARACTERISTICS FOR L4940V12 (refer to the test circuits, Tj =25
oC,
Vi = 14V, Ci = 0.1
µF, Co =22 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Io = 500 mA
11.75
12
12.25
V
Vo
Output Voltage
Io = 5 mA to 1500 mA
Vi = 13.8 to 17 V
11.5
12
12.5
V
Vi
Operating Input Voltage
Io = 5 mA
17
V
∆Vo
Line Regulation
Io = 5 mA
Vi = 13to 17V
3
7
mV
∆Vo
Load Regulation
Io = 5 to 1500 mA
Io = 500 to 1000 mA
15
10
35
25
mV
IQ
Quiescent Current
Io =5 mA
Io = 1.5 A Vi = 13.8 V
4
30
8
50
mA
∆IQ
Quiescent Current Change
Io =5 mA
Io = 1.5 A Vi = 13.8 to 16 V
1.5
10
mA
∆Vo
∆T
Output Voltage Drift
1.2
mV/
oC
SVR
Supply Voltage Rejection
Io = 1 A
f = 120 Hz
55
61
dB
Vd
Dropout Voltage
Io = 0.5 A
Io = 1.5 A
200
500
400
900
mV
Isc
Short Circuit Current
Vi =14 V
2
2.7
A
Zo
Output Impedance
f = 1KHz
Io = 0.5A
40
m
Ω
L4940 series
5/13



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