RT7290A - Synchronous Buck Converter

Datasheet Summary

Description

The RT7290A is a synchronous Buck converter with Advanced Constant On-Time (ACOT®) mode control.

The main control loop of the RT7290A uses an ACOT®mode control which provides a very fast transient response with no external compensators.

Features

5V to 23V Input Voltage Range.
PWM Frequency Fixed 500kHz.
ACOT®Mode Performs Fast Transient Response.
Integrated MOSFETs  31mΩ of High-Side MOSFET  20mΩ of Low-Side MOSFET.
Support Output MLCC Stable.
Internal Soft-Start (1.5ms typ).
Built-in OVP/UVP/OCP.
Power Good Indicator.
Fixed 300kHz VCLK to Support Charge Pump.
Individual EN for PWM and LDO.
Thermal Shutdown Marking Information 3B=YM DNN 3B= : Product Code YMDNN : Date Code Si.

Richtek

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Datasheet Details

Part number	RT7290A
Manufacturer	Richtek
File Size	287.81 KB
Description	Synchronous Buck Converter
Datasheet	RT7290A Datasheet
Additional preview pages of the RT7290A datasheet.

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Full PDF Text Transcription

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® RT7290A 6A, 23V, 500kHz, ACOT® Synchronous Buck Converter with LDO for System 3.3V General Description The RT7290A is a synchronous Buck converter with Advanced Constant On-Time (ACOT®) mode control. The main control loop of the RT7290A uses an ACOT®mode control which provides a very fast transient response with no external compensators. The RT7290A operates from 5V to 23V input voltage, provides a 3.3V LDO and a 300kHz CLK to drive an external charge pump. OCP, UVP and OVP are included in the RT7290A. This IC also provides a 1.5ms internal soft-start function and an open-drain power good indicator.

Published: Mar 19, 2020 |