ST1S32 4 A DC step-down switching regulator

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.

The ST1S32 integrates a 60 mΩ high-side switch and a 45 mΩ synchronous rectifier, allowing very high efficiency with very low output voltages.

The peak current mode control with internal compensation delivers a very compact solution with a minimum component count.

The ST1S32 is available in 4 mm x 4 mm, 8-lead VFDFPN package

技术特性

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
Integrated 60 mΩ and 45 mΩ Power MOSFETs
All ceramic capacitor
Power Good (POR)
Cycle-by-cycle current limiting
Current foldback short-circuit protection
VFDFPN 8 4x4x1.0 package

应用原理图

ST1S32 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
ST1S32PUR	Active		1000	VFDFPN 8 4x4x1.0	Tape And Reel		ST1S32PUR

DATASHEET

描述	版本	大小
ST1S32 : DS9063: 4 A DC step-down switching regulator	1	804KB