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RT7290A - Synchronous Buck Converter

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.

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Datasheet preview – RT7290A

Datasheet Details

Part number RT7290A
Manufacturer Richtek
File Size 287.81 KB
Description Synchronous Buck Converter
Datasheet download 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.
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