參數(shù)資料
型號: L4925
廠商: 意法半導(dǎo)體
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Very Low Drop Voltage Regulator(低壓差穩(wěn)壓器)
中文描述: 非常低壓降穩(wěn)壓器(低壓差穩(wěn)壓器)
文件頁數(shù): 3/8頁
文件大小: 77K
代理商: L4925
ELECTRICALCHARACTERISTICS
(V
S
=14VT
j
=–40 to 125
°
C unless otherwise specified;
Symbol
V
O
V
O
Parameter
Test Condition
V
I
= 6 to 28V; I
O
= 1 to 500mA
V
I
= 35V; T <1s;
I
O
= 1 to 500mA
I
O
= 100mA
I
O
= 500mA
V
I
= 4V; I
O
= 100mA
Min.
4.90
Typ.
5
Max.
5.10
5.50
Unit
V
V
Output Voltage
Output Voltage
V
DP
Dropout Voltage
0.2
0.3
0.3
0.6
0.5
V
V
V
V
IO
Input to Output Voltage
Difference in Undervoltage
Condition
Line Regulation
Load Regulation
Current Limit
V
OL
V
OLO
I
LIM
V
I
= 6 to 28V; I
O
= 1 to 1mA
I
O
= 1 to 500mA
V
O
= 4.5V
;
V
O
= 0; Foldbackcharacteristic
I
O
= 0.3mA
I
O
= 500mA
10
50
1500
mV
mV
mA
mA
μ
A
mA
550
1000
250
150
I
QSE
I
Q
Quiescent Current
Quiescent Current
250
20
RESET
Symbol
V
RT
V
RTH
t
RD
t
RR
V
RL
I
RH
Parameter
Test Condition
Min.
4.5
50
60
Typ.
Max.
5.2
200
140
30
0.4
1
Unit
V
mV
ms
μ
s
V
μ
A
Reset Threshold Voltage
Reset Threshold
Reset Pulse Delay
Reset Reaction Time
Reset Output LOW Voltage
Reset Output HIGH Leakage
Current
Delay Comparator Threshold
Delay Comparator Threshold
Hysteresis
100
100
5
C
T
= 100nF; t
R
> 100
μ
s
C
T
= 100nF;
R
RES
= 10K
to V
O
; V
S
=> 3V
V
RES
= 5V
V
CTth
V
CTth hy
2
V
100
mV
+
-
PREREGULATOR
5V
VREF
1.23V
Vz
Vz
2
μ
=
V
S
GND
2V
RESET
REG
L4925N
Vo
CT
RES
D95AT153
VBAT
C
S
Co
Vout
RES
APPLICATION CIRCUIT DIAGRAM
For stability: C
S
> 1
μ
F; C
O
> 10
μ
F;ESR< 2.5
at 10 KHz
Recommendedfor application:C
S
=C
O
= 10
μ
F to 100
μ
F
L4925
3/8
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