參數(shù)資料
型號(hào): L4955V51
廠商: 意法半導(dǎo)體
英文描述: 5A ULDO LINEAR REGULATORS FAMILY
中文描述: 5A條ULDO線性穩(wěn)壓器系列
文件頁(yè)數(shù): 10/14頁(yè)
文件大?。?/td> 142K
代理商: L4955V51
L4955V3.3
3
4.5
6
7.5
9
10.5 12 13.5 15 16.5 18 19.5 21 22.5
Input Voltage [V]
0
1
2
3
4
5
6
7
8
Output Current [A]
Current Limitation
Vout = 3.3V
Tj = 125
°
C
Power Dissipation Limit
Tc = 25
°
C
Pdmax=40W
Rdson
limit
DC Operating Area
Tc=70
°
C
Pdmax=22W
Figure 23:
DCoperatingarea.
-40
0
40
80
120
160
3.2
3.25
3.3
3.35
3.4
Tj [
°
C]
Vout [V]
Vin = 5V
Iout = 10mA
Figure24:
OutputVoltageStability vs. Junction
Temperature.
-40
-20
0
20
40
60
80
100
120
140
160
0
0.25
0.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
2.75
3
T j [
°
C ]
Iq [m A]
V in=5V
Iout = 10mA to 5A
Figure 25:
QuiescentCurrent vs. 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 tecnique has been used)
Figure26:
Load Regulation
-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
[
4.5V < Vin < 12 V
Iout = 10mA
Figure 27:
Lineregulation vs. JunctionTempera-
ture.
*Pulsed tecnique has been used
-40 -20
0
20
40
60
80
100 120 140 160
0
1
2
3
4
5
6
7
8
9
10
Tj [
°
C]
Output Current [A]
(Vin-Vout) > 2V
pin 2 = GND
Figure28:
MaximumOutputCurrentvs.Junction
Temperaturewithinternalcurrentlimiting
L4955
10/14
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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(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20