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RT6243B - High Efficiency Synchronous Step-Down Converter

This page provides the datasheet information for the RT6243B, a member of the RT6243A High Efficiency Synchronous Step-Down Converter family.

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.

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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Datasheet preview – RT6243B

Datasheet Details

Part number RT6243B
Manufacturer Richtek
File Size 671.87 KB
Description High Efficiency Synchronous Step-Down Converter
Datasheet download datasheet RT6243B Datasheet
Additional preview pages of the RT6243B datasheet.

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Full PDF Text Transcription

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® RT6243A/B 12A, 17V, High Efficiency Synchronous Step-Down Converter 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. In steady states, the ACOTTM operates in nearly constant switching frequency over line, load and output voltage ranges and makes the EMI filter design easier.
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