参数资料
型号: SC174MLTRT
厂商: Semtech
文件页数: 9/27页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 4A 10MLPD
产品培训模块: Power Supplies 101
标准包装: 1
系列: EcoSpeed®
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.75 V ~ 5.23 V
输入电压: 3 V ~ 5.5 V
频率 - 开关: 200kHz ~ 1MHz
电流 - 输出: 4A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 10-VFDFN 裸露焊盘
包装: 标准包装
供应商设备封装: 10-MLPD(3x3)
其它名称: SC174MLDKR
SC174
Typical Characteristics
OCP Valley Threshold vs Temperature
5.5
Start up waveform ( V IN =5V, V OUT =1.2V, I OUT =4A,
Channel 1: 500mV/Div, Channel 4: 2A/Div, Time: 0.5ms/Div )
5.3
5.0
4.8
4.5
4.3
4.0
3.8
3.5
V DD =5.0V
V DD =3.0V
-50 -25 0 25 50 75 100 125
Temperature (°C)
I VIN Input Current In Shutdown vs Temperature
3.5
3.0
2.5
2.0
Load Transient Test ( V IN =5V, V OUT =1.2V, I OUT = 0A to 4A,
Forced Continuous Conduction Mode, L OUT =1.3 H,
C OUT =3x22 F, Channel 1: 50mV/Div, Channel
2:5V/Div,Channel 4: 2A/Div, Time:10 s/Div)
1.5
1.0
0.5
0.0
V IN =5V
Blue: V LX =GND
Black: V LX =V IN
-50
-25
0
25
50
75
100
125
0.5
0.0
-0.5
-1.0
-1.5
Temperature (°C)
I BST Leakage Current vs Temperature
V IN =5V
Load Transient Test ( V IN =5V, V OUT =1.2V, I OUT = 4A to 0A,
Forced Continuous Conduction Mode, L OUT =1.3 H,
C OUT =3x22 F, Channel 1: 50mV/Div, Channel
2:5V/Div,Channel 4: 2A/Div, Time:10 s/Div)
-2.0
-2.5
-3.0
V BST =V IN
-50
-25
0
25
50
75
100
125
Temperature (°C)
? 2010 Semtech Corporation
9
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