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RT7231 - Synchronous Step-Down Converter

General Description

The RT7231/32/33/34 is a synchronous step-down DC/ DC converter with Advanced Constant On-Time (ACOT®) mode control.

It achieves high power density to deliver up to 4A output current from a 4.5V to 18V input supply.

Key Features

  • ACOT®Mode Enables Fast Transient Response.
  • 4.5V to 18V Input Voltage Range.
  • 4A Output Current.
  • 50mΩ Internal Low Site N-MOSFET.
  • Advanced Constant On-Time Control.
  • Support All Ceramic Capacitors.
  • Up to 95% Efficiency.
  • 650kHz Switching Frequency at all Load Current (RT7231, RT7233).
  • Discontinuous Operating Mode at Light Load (RT7232, RT7234).
  • Adjustable Output Voltage from 0.765V to 8V.
  • Adjustable Soft-Start.
  • Cycle-by-Cycle Current Limit.

📥 Download Datasheet

Datasheet Details

Part number RT7231
Manufacturer Richtek
File Size 319.69 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT7231 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Reference Design Sample & Design Tools Buy ® RT7231/32/33/34 4A, 18V, 650kHz, ACOT® Synchronous Step-Down Converter General Description The RT7231/32/33/34 is a synchronous step-down DC/ DC converter with Advanced Constant On-Time (ACOT®) mode control. It achieves high power density to deliver up to 4A output current from a 4.5V to 18V input supply. The proprietary ACOT® mode offers an optimal transient response over a wide range of loads and all kinds of ceramic capacitors, which allows the device to adopt very low ESR output capacitor for ensuring performance stabilization.