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L4987 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. L4987
Description  VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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L4987 Datasheet(HTML) 4 Page - STMicroelectronics

 
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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
Io = 200 mA, Vi = 8 V -40<TJ<125
oC
4.9
4.8
55.1
5.2
V
V
Vi
Operating Input Voltage
Io = 200 mA
5.7
18
V
Iout
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
1.5
1
6
mA
mA
OFF MODE Vi =12 V
90
180
µA
SVR
Supply Voltage Rejection
Io = 5 mA Vi = 7.3 V
± 1V
f = 120 Hz
f= 1 KHz
f = 10 KHz
76
71
58
dB
dB
dB
Vd
Dropout Voltage
Io = 200 mA
Io = 200 mA
-40 < TJ < 125
oC
0.3
0.5
0.7
V
V
Vil
Control Input Logic Low
-40 < TJ < 125
oC0.8
V
Vih
Control Input Logic High
-40 < TJ < 125
oC2
V
Ii
Control Input Current
10
µA
CO
Output Bypass Capacitance
ESR = 0.5 to 10
Ω Io = 0 to 200 mA
-40 < TJ < 125
oC
210
µF
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
L4987 SERIES
4/11


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