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ST1S32 PDF预览

ST1S32

更新时间: 2024-02-19 01:15:10
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意法半导体 - STMICROELECTRONICS /
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29页 809K
描述
4 A DC step-down switching regulator

ST1S32 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:HVSON, SOLCC8,.16,32Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:14 weeks风险等级:1.7
其他特性:ADJUSTABLE OUTPUT VOLTAGE FROM 0.8 VOLT 5.5 VOLT模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:5.5 V最小输入电压:2.8 V
标称输入电压:5 VJESD-30 代码:S-PDSO-N8
长度:4 mm功能数量:1
端子数量:8最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:4 A
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装等效代码:SOLCC8,.16,32封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE认证状态:Not Qualified
座面最大高度:1 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:1900 kHz温度等级:AUTOMOTIVE
端子形式:NO LEAD端子节距:0.8 mm
端子位置:DUAL宽度:4 mm
Base Number Matches:1

ST1S32 数据手册

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ST1S32  
4 A DC step-down switching regulator  
Datasheet — production data  
Features  
4 A DC output current  
2.8 V to 5.5 V input voltage  
Output voltage adjustable from 0.8 V  
1.5 MHz switching frequency  
Internal soft-start and enable  
VFDFPN 8 4x4x1.0  
Integrated 60 mΩand 45 mΩPower MOSFETs  
All ceramic capacitor  
Description  
Power Good (POR)  
The ST1S32 is an internally compensated 1.5  
MHz fixed-frequency PWM synchronous step-  
down regulator. The ST1S32 operates from 2.8 V  
to 5.5 V input, while it regulates an output voltage  
as low as 0.8 V and up to VIN.  
Cycle-by-cycle current limiting  
Current foldback short-circuit protection  
VFDFPN 8 4x4x1.0 package  
Applications  
The ST1S32 integrates a 60 mΩ high-side switch  
and a 45 mΩ synchronous rectifier, allowing very  
high efficiency with very low output voltages.  
µP/ASIC/DSP/FPGA core and I/O supplies  
Point of Load for: STB, TV, DVD  
The peak current mode control with internal  
compensation delivers a very compact solution  
with a minimum component count.  
Optical storage, hard disk drives, printers,  
audio/graphic cards  
The ST1S32 is available in 4 mm x 4 mm, 8-lead  
VFDFPN package.  
Figure 1.  
Application circuit  
VIN  
L
VOUT  
VINA  
Cin_a  
R3  
R1  
ST1S32  
EN  
Cout  
Cin_sw  
R2  
GND  
AM12608V1  
May 2012  
Doc ID 023246 Rev 1  
1/29  
This is information on a product in full production.  
www.st.com  
29  

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