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RT7291B - Synchronous Buck Converter

Download the RT7291B datasheet PDF. This datasheet also covers the RT7291A variant, as both devices belong to the same synchronous buck converter family and are provided as variant models within a single manufacturer datasheet.

General Description

The RT7291A/B is a synchronous Buck converter with Advanced Constant On-Time (ACOT®) mode control.

The main control loop of the RT7291A/B uses an ACOT® mode control which provides a very fast transient response with no external compensators.

Key Features

  • 5V to 23V Input Voltage Range.
  • Up to 98% Duty for 2S Battery.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT7291A-Richtek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT7291B
Manufacturer Richtek
File Size 231.08 KB
Description Synchronous Buck Converter
Datasheet download datasheet RT7291B Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer

Other Datasheets by Richtek

Part Number Description
RT7291A Synchronous Buck Converter
RT7290A Synchronous Buck Converter
RT7294A SynchronousStep-Down Converter
RT7294C SynchronousStep-Down Converter
RT7295C SynchronousStep-Down Converter

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.

View original datasheet text
® RT7291A/B 6A, 23V, 500kHz, ACOT® Synchronous Buck Converter with LDO for System 5V General Description The RT7291A/B is a synchronous Buck converter with Advanced Constant On-Time (ACOT®) mode control. The main control loop of the RT7291A/B uses an ACOT® mode control which provides a very fast transient response with no external compensators. The RT7291A/B operates from 5V to 23V input voltage, provides a 5V LDO and a 300kHz CLK to drive an external charge pump. OCP, UVP and OVP are included in the RT7291A/B. This IC also provides a 1.5ms internal soft-start function and an open-drain power good indicator.