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RT7240 - Synchronous Step-Down Converter

This page provides the datasheet information for the RT7240, a member of the RT7235 Synchronous Step-Down Converter family.

Description

The RT7235/36/39/40 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 5A output current from a 4.5V to 18V input supply.

Features

  • ACOT® Mode Enables Fast Transient Response.
  • 4.5V to 18V Input Voltage Range.
  • 5A Output Current.
  • 35mΩ 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 (RT7235, RT7239).
  • Discontinuous Operating Mode at Light Load (RT7236, RT7240).
  • Adjustable Output Voltage from 0.765V to 8V.
  • Adjustable Soft-Start.
  • Cycle-by-Cycle Current Limi.

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Datasheet preview – RT7240

Datasheet Details

Part number RT7240
Manufacturer Richtek
File Size 342.59 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT7240 Datasheet
Additional preview pages of the RT7240 datasheet.

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Full PDF Text Transcription

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Reference Design Sample & Design Tools Buy ® RT7235/36/39/40 5A, 18V, 650kHz, ACOT® Synchronous Step-Down Converter General Description The RT7235/36/39/40 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 5A 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.
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