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L4987 데이터 시트보기 (PDF) - STMicroelectronics

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L4987 VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG ST-Microelectronics
STMicroelectronics ST-Microelectronics
L4987 Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
L4987 SERIES
ELECTRICAL CHARACTERISTICS FOR L4987CPT50 (refer to the test circuits, VI = 8 V,
IOUT = 5mA, Tj = 25 oC, Ci = 0.1 µF, Co = 2.2 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
Vo Output Voltage
Io = 200 mA, Vi = 8 V
4.9
5
5.1
V
Io = 200 mA, Vi = 8 V -40<TJ<125 oC 4.8
5.2
V
Vi Operating Input Voltage
Io = 200 mA
5.7
18
V
Io ut Output Current Limit
250
A
Vo Line Regulation
Vi = 6.3 to 18 V, Io = 0.5 mA
3
20
mV
Vo Load Regulation
Vi = 3.6 V
Io = 0.5 to 200 mA
3
20
mV
Id Quiescent Current
ON MODE
Vi = 6.3 to 18 V Io = 0 mA
Vi = 6.3 to 18 V Io = 200 mA
0.7
1
mA
1.5
6
mA
OFF MODE Vi = 12 V
90
1 80
µA
SVR Supply Voltage Rejection
Io = 5 mA Vi = 7.3 V ± 1V
f = 120 Hz
f = 1 KHz
f = 10 KHz
76
dB
71
dB
58
dB
Vd Dropout Voltage
Vil Control Input Logic Low
Vih Control Input Logic High
Io = 200 mA
Io = 200 mA -40 < TJ < 125 oC
-40 < TJ < 125 oC
-40 < TJ < 125 oC
0.3
0.5
V
0.7
V
0.8
V
2
V
Ii Control Input Current
10
µA
CO Output Bypass Capacitance ESR = 0.5 to 10 Io = 0 to 200 mA
2
10
µF
-40 < TJ < 125 oC
Vfl Control Flag Output Low
Vi - Vo < Vcesat power, Ifl = 6 mA
Io = 200 mA
0.5
V
Ifh Control Flag Output High
Leakage Current
Vi > 5.85 V Voh = 15 V
10
µA
4/11
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