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RT6256C Datasheet 23V Synchronous Step-Down Converter

Manufacturer: Richtek

Download the RT6256C datasheet PDF. This datasheet also includes the RT6256B variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT6256B-Richtek.pdf) that lists specifications for multiple related part numbers.

General Description

The RT6256B/C is an advanced constant on-time (ACOT®) mode synchronous buck converter.

The main control loop of the RT6256B/C using an advanced constant on-time (ACOT®) mode control which provides a very fast transient response.

The RT6256B operates from 4.5V to 23V input voltage and RT6256C operates from 5.1V to 23V.

Overview

® RT6256B/C 6A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO.

Key Features

  • 4.5V to 23V (RT6256B) and 5.1V to 23V (RT6256C) Input Voltage Range 6A Output Current.
  • ACOT® Mode Performs Fast Transient Response.
  • ACOT® Architecture to Enable All MLCC Output Capacitor Usage.
  • Fixed 750kHz (RT6256C) and 500kHz (RT6256B) Switching Frequency.
  • High Efficient Internal Power MOSFET Switch- 30mΩ (High-Side) and 15mΩ (Low-Side).
  • Fixed 3.3V (RT6256B) and 5V (RT6256C) LDOs Output Supply 100mA.
  • Pre-biased Soft-Start.
  • Cycle-by-Cycle Over-Current Pr.