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uP9622

3A Non-Synchronous Buck Regulator

Datasheets PDF

General Description

The uP9622 is a high efficiency buck regulator with integrated high side NMOS switch. It operates from a 4.5V to 27V input voltage range and supplies up to 3A of load current. The output voltage is adjustable down to 0.8V by a voltage divider. Other features include internal soft-start, chip enable, over-voltage, under-voltage, over-temperature and over-current protections. The uP9622 is available in a space-saving SOP-8L package.

Pin Configuration & Typical Application Circuit

Feature

  • 4.5V to 27V Input Voltage Range
  • 70mΩ Internal High Side NMOS,Efficiency: Up to 95%
  • Internal Soft Start
  • Output Voltage Adjustable down to 0.8V
  • 3A Continuous Output Current
  • Fixed 370kHz PWM Operation
  • Cycle-by-Cycle Current Limit
  • Short Circuit Protection
  • Thermal Shutdown
  • Small Size SOP-8L Package
  • RoHS Compliant and Halogen Free

Application

  • Point of Load DC/DC Conversion
  • TV Set Top Box
  • DVD Driver and HDD
  • LCD Monitors and TVs
  • Cable Modems
  • Telecom/Networking/Datacom Equipment