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RT2853B Datasheet Synchronous Step-Down Converter

Manufacturer: Richtek

Download the RT2853B datasheet PDF. This datasheet also includes the RT2853A variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT2853A-Richtek.pdf) that lists specifications for multiple related part numbers.

General Description

The RT2853A/B are high-performance 650kHz 3A step- down regulators with internal power switches and synchronous rectifiers.

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Overview

RT2853A/B 3A, 18V, 650kHz, ACOT® Synchronous Step-Down Converter 1.

Key Features

  • Fast Transient Response.
  • Steady 650kHz Switching Frequency.
  • Enhanced Efficiency at Light Load (RT2853A).
  • Advanced Constant On-Time (ACOT®) Control.
  • Optimized for Ceramic Output Capacitors.
  • 4.5V to 18V Input Voltage Range.
  • Internal 110m Switch and 30m Synchronous Rectifier.
  • 0.765V to 7V Adjustable Output Voltage.
  • Externally-adjustable, Pre-biased Compatible Soft- Start.
  • Cycle-by-Cycle Current Limit.
  • Optional Output Discharge Function.