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RT7240A - Synchronous Step-Down Converter

General Description

The RT7240A 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.

Key Features

  • ACOT®Mode Enables Fast Transient Response.
  • 4.5V to 18V Input Voltage Range.
  • 5A Output Current.
  • 35mW Internal Low Site N-MOSFET.
  • Advanced Constant On-Time Control.
  • Support All Ceramic Capacitors.
  • Up to 95% Efficiency.
  • Discontinuous Operating Mode at Light Load.
  • Adjustable Output Voltage from 0.765V to 8V.
  • Adjustable Soft-Start.
  • Cycle-by-Cycle Current Limit.
  • Input Under Voltage Lockout.
  • Thermal Shutdown.

📥 Download Datasheet

Datasheet Details

Part number RT7240A
Manufacturer Richtek
File Size 213.20 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT7240A Datasheet

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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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® RT7240A 5A, 18V, 650kHz, ACOT® Synchronous Step-Down Converter General Description The RT7240A 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. In addition, RT7240A keeps an excellent constant switching frequency under line and load variation and the integrated synchronous power switches with the ACOT® mode operation provides high efficiency in whole output current load range.