ST ST1S14PHR

降压降压5.5V48V3A

Overview

The ST1S14PHR is a step-down monolithic power switching regulator able to deliver up to 3 A DC current to the load depending on the application conditions. The high current level is also achieved thanks to a HSOP8 package with exposed frame, that allows to reduce the Rth(JA) down to approximately 40 °C/W. The output voltage can be set from 1.22 V. 

Features • 3 A DC output current • Operating input voltage from 5.5 V to 48 V • 850 kHz internally fixed switching frequency • Internal soft-start • Power good open collector output • Current mode architecture • Embedded compensation network • Zero load current operation • Internal current limiting • Inhibit for zero current consumption • 2 mA maximum quiescent current over temperature range • 250 mΩ typ. RDS(on) • Thermal shutdown

Features

• 3 A DC output current

• Operating input voltage from 5.5 V to 48 V
  

• 850 kHz internally fixed switching frequency
  

• Internal soft-start
  

• Power good open collector output
  

• Current mode architecture
  

• Embedded compensation network
  

• Zero loads current operation
  

• Internal current limiting
  

• Inhibit for zero current consumption
  

• 2 mA maximum quiescent current over the temperature range
  

• 250 mΩ typ. R_DS(on)
  

• Thermal shutdown
  

Applications

• Factory automation
  

• Printers
  

• DC-DC modules
  

• High current LED drivers