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RT5785B Datasheet Synchronous Step-Down Converter

Manufacturer: Richtek

Download the RT5785B datasheet PDF. This datasheet also includes the RT5785A variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT5785A-Richtek.pdf) that lists specifications for multiple related part numbers.

General Description

The RT5785A/B is a high-performance, Advanced Constant On-Time (ACOTTM) monolithic synchronous step-down DC-DC converter that can deliver up to 2A output current from a 2.5V to 6V input supply.

The proprietary ACOT control architecture

Overview

® RT5785A/B 2A, 6V, 1.5MHz, 25μA IQ, ACOTTM Synchronous Step-Down Converter.

Key Features

  • quick transient response and provides stable operation with small ceramic output capacitors and without complicated external compensation. The switching ripple voltage is easily smoothed.
  • out by small package filtering elements due to a constant switching frequency of 1.5MHz and the maximum duty cycle of 100% allows the device to operate at low dropout use. With internal low on-resistance power switches and extremely low quiescent current, the RT5785A/B displays excellent efficiency and g.