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RT5788B - Synchronous Step-Down Converter

Download the RT5788B datasheet PDF. This datasheet also covers the RT5788A 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 RT5788A/B is a simple, easy-to-use, 4A synchronous step-down DC-DC converter with an input supply voltage range of 2.5V to 6V.

The device build-in an accurate 0.6V (±1.5%) reference voltage and can operate in 100% duty cycle as a very low dropout voltage regulator.

Key Features

  • 4A Converter With Built-In 22mΩ/20mΩ Low RDS(ON) Power FETs.
  • Input Supply Voltage Range : 2.5V to 6V.
  • Output Voltage Range : 0.6V to 6V.
  • Operates Up to 100% Duty Cycle.
  • Advanced Constant On-Time (ACOT®) Control  Ultrafast Transient Response  No Needs for External Compensations  Optimized for Low-ESR Ceramic Output Capacitors.
  • 0.6V ±1.5% High-Accuracy Feedback Reference Voltage.
  • 35μA Operation Quiescent Current (RT5788A).
  • Robust Over-Current Protecti.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT5788A-Richtek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT5788B
Manufacturer Richtek
File Size 364.70 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT5788B Datasheet

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Other Datasheets by Richtek

Part Number Description
RT5788A Synchronous Step-Down Converter
RT5784A Synchronous Step-Down Converter
RT5784B Synchronous Step-Down Converter
RT5785A Synchronous Step-Down Converter
RT5785B 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
® RT5788A/B 6V, 4A, 1.5MHz ACOT® Synchronous Step-Down Converter in TSOT-23-8 package General Description The RT5788A/B is a simple, easy-to-use, 4A synchronous step-down DC-DC converter with an input supply voltage range of 2.5V to 6V. The device build-in an accurate 0.6V (±1.5%) reference voltage and can operate in 100% duty cycle as a very low dropout voltage regulator. The RT5788A/B integrates low RDS(ON) power MOSFETs to achieve high efficiency and is available in TSOT-23-8 (FC) package. The RT5788A/B adopts Advanced Constant On-Time (ACOT®) control architecture to provide an ultrafast transient response with few external components and to operate in nearly constant switching frequency over the line, load, and output voltage range. The RT5788A/B is designed to operate at 1.