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參數資料
| 型號： | L4956 |
| 廠商： | 意法半導體 |
| 英文描述： | 5A LOW DROP LINEAR REGULATOR |
| 中文描述： | 第5A低壓降線性穩(wěn)壓器 |
| 文件頁數： | 4/8頁 |
| 文件大?。?/td> | 80K |
| 代理商： | L4956 |
Power
Dissipation
Lim it
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
(Vpw - Vout) [V]
O utput Current [A]
V pw > 3V
V sig > 4.5V
Tj = 125
°
C
Tc = 25
°
C
Pdm ax = 40 W
Current Limitation
Rdson
lim it
DC Operating Area
Tc = 70
°
C
Pdm ax=22 W
Figure 1. DC Operating Area.
-40
0
40
80
120
160
1.24
1.245
1.25
1.255
1.26
1.265
1.27
1.275
1.28
Tj [
°
C]
Vout [V]
Vpw = 3.3V
Vsig = 5V
Iout = 10mA
Figure2. Output Voltage Stabilityvs.
Junction Temperature
0
1
2
3
4
5
-5
-4
-3
-2
-1
0
1
2
3
4
5
Iout [A]
O
D
[
P ulsed tecnique has been used
Vpw = 3.3V
Vout = Vadj
Tj = 25
°
C
Figure 3. Load Regulation.
0
1
2
3
4
5
6
0
0.25
0.5
0.75
1
1.25
Iout [A]
M
V
[
Tj = 125
°
C
Tj = 25
°
C
Tj = -40
°
C
Pulsed technique has been used
Figure4. DropoutVoltage.
-40 -20
0
20
40
60
80 100 120 140 160
Tj [oC]
0
1
2
3
4
5
6
7
8
9
10
Output Current [A]
(Vpw -Vout) > 2V
Pulsed tecnique has been used
Figure 5. MaximumOutput Current vs.
Junction Temperature
-40
-20
0
2 0
4 0
6 0
8 0
1 00 120 14 0 1 60
0 .4
0 .6
0 .8
1
1 .2
1 .4
1 .6
1 .8
2
T j [
°
C ]
Iq [m A ]
V
S IG
= 6.5V
Iout = 10 m A to 5A
3 V < V PW < 6.5 V
Figure6. QuiescentCurrent at pin VSIGvs.
Junction Temperature.
L4956
4/8
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| L4957AD1.5 | 功能描述:低壓差穩(wěn)壓器 - LDO 1.5V 5.0A Linear RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| L4957AD1.5TR | 功能描述:低壓差穩(wěn)壓器 - LDO 1.5V 5.0A Linear RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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