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RT6243B - High Efficiency Synchronous Step-Down Converter

Download the RT6243B datasheet PDF. This datasheet also covers the RT6243A variant, as both devices belong to the same high efficiency synchronous step-down converter family and are provided as variant models within a single manufacturer datasheet.

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Note: The manufacturer provides a single datasheet file (RT6243A-Richtek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT6243B
Manufacturer Richtek
File Size 671.87 KB
Description High Efficiency Synchronous Step-Down Converter
Datasheet download datasheet RT6243B Datasheet

General Description

The RT6243A/B is a high-performance, synchronous stepdown converter that can deliver up to 12A output current with an input supply voltage range of 4.5V to 17V.

The device integrates low RDS(ON) power MOSFETs, accurate 0.6V reference and an integrated diode for bootstrap circuit to offer a very compact solution.

The RT6243A/B adopts Advanced Constant On-Time (ACOTTM) control architecture that provides ultrafast transient response and further reduce the externalcomponent count.

Overview

® RT6243A/B 12A, 17V, High Efficiency Synchronous Step-Down Converter.

Key Features

  • are also integrated in the device including the cycle-by-cycle current limit, OVP, UVP, input UVLO and OTP. The RT6243A/B is available in a thermally enhanced VQFN18L 3.5x3.5 (FC) package. Marking Information RT6243AGQVF 1A= : Product Code 1A=YM DNN YMDNN : Date Code Features.
  • 4.5V to 17V Input Voltage Range.
  • Integrated 9.8mΩ/4.5mΩ MOSFETs.
  • 0.6V ±1% Voltage Reference.
  • Adjustable Output Voltage from 0.6V to 5.5V.
  • Supports Ceramic Output Capacitor.
  • ACOTTM Contro.

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