參數(shù)資料
型號: L387
廠商: 意法半導(dǎo)體
英文描述: VERY LOW DROP 5V REGULATOR WITH RESET
中文描述: 很好低壓差5V穩(wěn)壓器帶復(fù)位
文件頁數(shù): 3/6頁
文件大?。?/td> 81K
代理商: L387
ELECTRICAL CHARACTERISTICS
(refer to the test circuit, V
i
= 14.4 V, T
j
= 25
°
C, C
o
= 100
μ
F;
unless otherwise specified)
Symbol
V
o
Parameter
Test Conditions
Min.
4.80
4.75
Typ.
5.00
5.00
Max.
5.20
5.25
26
Unit
V
V
V
Output Voltage
I
o
= 5 mA to 500 mA T
j
= 25
°
C
– 40
T
j
125
°
C
V
I
Operating Input Voltage
(*), Over Full T Range (– 40 to 125
°
C)
(see note **)
V
i
= 6 V to 26 V
I
o
= 5 mA to 500 mA
V
O
= V
O NOM
– 100 mV
I
o
= 350 mA
I
o
= 500 mA
V
o
V
o
V
I
– V
o
Line Regulation
Load Regulation
Dropout Voltage
I
o
= 5 mA
5
50
60
mV
mV
15
0.40
0.60
5
20
60
100
160
– 0.5
0.65
0.8
15
35
100
160
180
V
V
I
q
Quiescent Current
I
o
= 0 mA
I
o
= 150 mA
I
o
= 350 mA
I
o
= 500 mA
I
o
= 500 mA
mA
mA
mA
mA
mA
mV/
°
C
V
i
= 6.2 V
V
o
T
SVR
Temperature Output
Voltage Drift
Supply Voltage Rejection
I
o
= 350 mA
C
o
= 100
μ
F
f = 120 Hz
V
i
= 12 V
±
5 V
pp
60
I
SC
Output Short Circuit
Current
Reset Output Voltage
1.2
1.6
A
V
R
I
R
= 3 mA
I
R
= 16 mA
Over Full T (– 40
°
C
T
j
125
°
C)
V
o
in Regulation V
R
= 5V
Over Full T Range
Cd = 100 nF
Over Full T Range
V
o
@ Reset out H to L Transition, Over
Full T Range
V
4
= 3 V
1 < V
o
< 4.70 V
1.5 < V
o
< 4.75 V
0.5
0.8
V
V
I
R
Reset Output Leakage
Current
Delay Time for Reset
Output
50
μ
A
t
d
25
ms
V
RT (off)
4.75
V
o
– 0.15
20
V
I
C4
Charging Current
(current generator)
Power on
V
o
Threshold
Comparator Threshold
(pin 4)
10
30
μ
A
V
RT (on)
V
o
@ Reset out L to H Transition , Over
Full T Range
V
4
@ Reset out H to L Transition
V
4
@ Reset out L to H Transition
Over Full T Range
V
RT (off)
+ 0.05V
V
o
– 0.04V
3.9
4.3
V
V
4
3.2
3.7
V
V
V
H
Hysteresis Voltage
450
mV
(*)
(**) Design limits are guaranteed (but not 100 % production tested) over the indicated temperature and supply voltage ranges.
These limits are not used to calculate outgoing quality levels.
For a DC voltage 26 < Vi < 37 V the device is not operating.
L387A
3/6
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