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.

Key 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
  • 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
产品规格
DescriptionVersionSize
DS9063: 4 A DC step-down switching regulator1.0803 KB
手册
DescriptionVersionSize
Brochure Power management guide05.20167 MB
解决方案评估工具
型号制造商Description
STEVAL-ISA068V14 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S32 in DFN 4x4 package
样片和购买
型号PackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
ST1S32PURVFDFPN 8 4x4x1.0Tape And Reel0.6731000NECEAR99MALAYSIA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
ST1S32PURVFDFPN 8 4x4x1.0IndustrialEcopack2md_3i-wspc-vfdfpn-wspc-4x4x1.0-wspc-8l-wspc-pitch-wspc-0.8_my3i-wspc-ua18aa5_1_signed.pdf
4 A DC step-down switching regulator ST1S32
Very low drop voltage regulators with inhibit KFXX
md_3i-wspc-vfdfpn-wspc-4x4x1.0-wspc-8l-wspc-pitch-wspc-0.8_my3i-wspc-ua18aa5_1_signed.pdf ST1S32