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L4987CPT87 Datasheet

  • L4987CPT87

  • VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CO...

  • 11頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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L4987 SERIES
ELECTRICAL CHARACTERISTICS FOR L4987CPT120
(refer to the test circuits, V
I
= 15V,
I
OUT
= 5mA, T
j
= 25
o
C, C
i
= 0.1
碌F,
C
o
= 2.2
碌F
unless otherwise specified)
Symbol
V
o
V
i
I
o ut
鈭?/div>
V
o
鈭哣
o
I
d
Parameter
Output Voltage
Operating Input Voltage
Output Current Limit
Line Regulation
Load Regulation
Quiescent Current
V
i
= 13.5 to 18 V, I
o
= 0.5 mA
V
i
= 13.5 V
I
o
= 0.5 to 200 mA
ON MODE
V
i
= 13.5 to 18 V I
o
= 0 mA
V
i
= 13.5 to 18 V I
o
= 200 mA
OFF MODE V
i
= 12 V
SVR
Supply Voltage Rejection
I
o
= 5 mA V
i
= 14.5 V
鹵
1V
f = 120 Hz
f = 1 KHz
f = 10 KHz
I
o
= 200 mA
I
o
= 200 mA
-40 < T
J
< 125 C
o
o
o
Test Conditions
I
o
= 200 mA, V
i
=15 V
I
o
= 200 mA, V
i
=15 V -40<T
J
<125
o
C
I
o
= 200 mA
Min.
11.76
11.52
12.75
250
Typ.
12
Max.
8.874
9.05
18
Unit
V
V
V
A
mV
mV
mA
mA
碌
A
dB
dB
dB
5
3
0.5
3
90
67
64
51
0.3
30
20
1
6
180
V
d
V
il
V
ih
I
i
C
O
V
fl
I
fh
Dropout Voltage
Control Input Logic Low
Control Input Logic High
Control Input Current
Output Bypass Capacitance
Control Flag Output Low
Control Flag Output High
Leakage Current
0.5
0.7
0.8
V
V
V
V
碌
A
碌
F
-40 < T
J
< 125 C
-40 < T
J
< 125 C
ESR = 0.5 to 10
鈩?/div>
I
o
= 0 to 200 mA
-40 < T
J
< 125
o
C
V
i
- V
o
< V
cesat
power,
I
o
= 200 mA
V
i
> 12.75 V
I
fl
= 6 mA
2
10
2
10
0.5
10
V
碌A
V
oh
= 15 V
6/11

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