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參數(shù)資料
| 型號(hào)： | L4957AD3.3 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | UP TO 5A ULDO LINEAR REGULATOR |
| 中文描述： | 高達(dá)5A ULDO線性穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 3/7頁(yè) |
| 文件大?。?/td> | 63K |
| 代理商： | L4957AD3.3 |
ELECTRICAL CHARACTERISTICS
(T
j
= 25
°
C,V
IN
= 5V, unless otherwise specified).
= Specificationsreferred to T
J
from 0
°
C to +125
°
C.
Symbol
V
IN
V
O
Parameter
Test Condition
Min.
3
1.485
1.47
1.782
Typ.
Max.
14
1.515
1.53
1.818
Unit
V
V
V
V
Operating Supply Voltage
Output Voltage
3.15V < V
IN
< 5.25V;I
O
= 0.1A
V
IN
= 3.3V
±
5%; 0.1A< I
O
< 5A
V
IN
= 3.3V
±
5%
V
IN
= 5V
±
5%
V
IN
= 3.3V
±
5% (0.1A < I
O
< 45A)
V
IN
= 5V
±
5%
V
IN
= 3.3V
±
5%
V
IN
= 5V
±
5%
V
IN
= 3.3V
±
5% (0.1A< I
O
<2.2A)
V
IN
= 5V
±
5%
V
IN
= 5V
±
5%
V
IN
= 5V
±
5%
1.5
1.5
1.8
I
O
= 0.1A
0.1A< I
O
< 5A
I
O
= 0.1A
1.764
1.8
1.836
V
2.475
2.5
2.525
V
0.1A< I
O
< 5A
I
O
= 0.1A
0.1A< I
O
< 5A
2.45
2.5
2.55
V
3.267
3.234
3.3
3.3
3.333
3.366
300
V
V
R
DSON
Drain-Source ON
Resistance
Current Limiting
Quiescent Current
Ripple Rejection
m
I
O
I
Q
5.1
6.3
0.6
75
7.5
2
A
3V < V
IN
< 14V
f = 120Hz, I
O
= 1A
V
IN
= 5V
V
IN
= 2V
PP
mA
dB
60
THERMAL DATA
Symbol
R
th j-case
R
th j-amb
Parameter
TO220
2.5
50
D2PAK
3
60
Unit
°
C/W
°
C/W
°
C
°
C
Thermal Resistance Junction-case
Thermal Resistance Junction-ambient
Thermal Shutdown
Thermal Hysteresis
Max.
Max.
Typ.
Typ.
150
20
-40
-20
0
20
40
60
80
100 120 140 160
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Tj [
°
C]
O
3V < Vin < 6.5V
Iout = 10mA
Figure1:
Line Regulation vs. Junction
Temperature
0
1
2
3
4
5
-5
-4
-3
-2
-1
0
1
2
3
4
5
Iout [A]
O
Vin = 5V
Tj = 25
°
C
(Pulsed technique has been used)
Vout= 1.5V
Figure 2:
Load Regulation
L4957A
3/7
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