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RT6201B - Synchronous Step-Down Converter

Download the RT6201B datasheet PDF. This datasheet also covers the RT6201A variant, as both devices belong to the same synchronous step-down converter family and are provided as variant models within a single manufacturer datasheet.

General Description

The RT6201A/B is a synchronous step-down DC/DC converter with Advanced Constant On-Time (ACOTTM) mode control.

It achieves high power density to deliver up to 4A output current from a 4.5V to 18V input supply.

Key Features

  • ACOTTM Mode Enables Fast Transient Response.
  • 4.5V to 18V Input Voltage Range.
  • 4A Output Current.
  • 50mΩ Internal Low Side N-MOSFET.
  • Advanced Constant On-Time Control.
  • Support All Ceramic Capacitors.
  • Up to 95% Efficiency.
  • 650kHz Switching Frequency at all Load Current (RT6201B).
  • Discontinuous Operating Mode at Light Load (RT6201A).
  • Adjustable Output Voltage from 0.765V to 8V.
  • Adjustable Soft-Start.
  • Cycle-by-Cycle Current Limit.
  • Input.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT6201A-Richtek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT6201B
Manufacturer Richtek
File Size 205.01 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT6201B Datasheet

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Other Datasheets by Richtek

Part Number Description
RT6201A Synchronous Step-Down Converter
RT6200 1.2MHz Step-Down Converter
RT6202A Synchronous Step-Down Converter
RT6202B Synchronous Step-Down Converter
RT6203B Synchronous Step-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
® RT6201A/B 4A, 18V, 650kHz, ACOTTM Synchronous Step-Down Converter General Description The RT6201A/B is a synchronous step-down DC/DC converter with Advanced Constant On-Time (ACOTTM) mode control. It achieves high power density to deliver up to 4A output current from a 4.5V to 18V input supply. The proprietary ACOTTM 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, RT6201A/B keeps an excellent constant switching frequency under line and load variation and the integrated synchronous power switches with the ACOTTM mode operation provides high efficiency in whole output current load range.