DC-DC Converter

Single Output Buck Converter

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uP1741P

8A Synchronous Buck Converter

Datasheets PDF

General Description

The uP1741P-B1 is a high performance synchronous buck converter. The synchronous buck of the uP1741P-B1 uPI’s proprietary robust constant on-time (RCOTTM) PWM scheme that features easy-to-use, low external component count, fast transient response and quasi-constant frequency operation over the operation range.
The uP1741P-B1 has complete functions including under voltage protection, over current protection, over voltage protection, power-up sequencing, power OK output, and thermal shutdown. The uP1741P-B1 is available in WQFN4x4-32L package.

Pin Configuration & Typical Application Circuit

Feature

  • Wide Input Voltage Range from 4.5V to 26V
  • Fast Load Transient Response
  • Output Current Up to 8A
  • RCOTTM Control Topology
  • Discharge Output When Disable
  • Fixed 1.5V, 1.8V Output or Adjustable from 0.75V to 3.3V
  • POR, OVP, UVP and Thermal Shutdown
  • RoHS Compliant and Halogen Free

Application

  • Desktop PCs, Notebooks, and Workstations
  • Microprocessor and Chipset Supplies