LTM4608A
典型性能特性
负载瞬态响应
负载瞬态响应
负载瞬态响应
I
负载
2A/DIV
V
OUT
20mV/DIV
AC耦合
I
负载
2A/DIV
V
OUT
20mV/DIV
AC耦合
I
负载
2A/DIV
V
OUT
20mV/DIV
AC耦合
4608A G10
V
IN
= 5V
20s/DIV
V
OUT
= 1.8V ，R
FB
= 4.87k
2.5A / μs的步骤
C
OUT
= 100μF X5R
C1 = NONE ，C3 = NONE从图18
4608A G11
V
IN
= 5V
20s/DIV
V
OUT
= 1.5V ，R
FB
= 6.65k
2.5A / μs的步骤
C
OUT
= 100μF X5R
C1 = NONE ，C3 = NONE从图18
4608A G12
V
IN
= 5V
20s/DIV
V
OUT
= 1.2V ，R
FB
= 10k
2.5A / μs的步骤
C
OUT
= 2
×
100F
C1 = 100pF电容C3 = NONE从图18
,
启动
602
V
OUT
0.5V/DIV
V
IN
2V/DIV
V
FB
（毫伏）
600
V
FB
与温度
0
–0.1
负载调整率（ ％ ）
V
IN
= 5.5V
598
596
V
IN
= 2.7V
594
V
IN
= 3.3V
–0.2
–0.3
–0.4
–0.5
–0.6
负载调节电流VS
V
IN
= 5V
50s/DIV
V
OUT
= 1.5V
C
OUT
= 100μF空载和负载8A
（默认为100μs软启动）
4608A G13
592
590
–55
FC模式
V
IN
= 3.3V
V
OUT
= 1.5V
0
2
4
6
负载电流（A ）
8
4608A G15
–25
65
35
温度（℃）
5
95
125
4608A G14
2.5V输出电流
3.0
2.5
输出电压（V）
2.0
1.5
1.0
0.5
0
2V/DIV
2V/DIV
短路保护
（ 2.5V短路，空载）
V
IN
短路保护
（ 2.5V短， 4A负载）
5V/DIV
5V/DIV
V
IN
V
OUT
I
OUT
负载
V
OUT
5A/DIV
5A/DIV
I
OUT
V
IN
= 5V
V
OUT
= 2.5V
0
5
10
15
输出电流（A ）
20
4608A G16
50s/DIV
4608A G17
V
IN
= 5V
V
OUT
= 2.5V
50s/DIV
4608A G18
4608afc
6
