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RT5788A - Synchronous Step-Down Converter

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.

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Datasheet Details

Part number RT5788A
Manufacturer Richtek
File Size 364.70 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT5788A Datasheet

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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.