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RT5785B - Synchronous Step-Down Converter

Download the RT5785B datasheet PDF. This datasheet also covers the RT5785A 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 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.

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.

📥 Download Datasheet

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

Datasheet Details

Part number RT5785B
Manufacturer Richtek
File Size 259.17 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT5785B Datasheet

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Other Datasheets by Richtek

Part Number Description
RT5785A Synchronous Step-Down Converter
RT5784A Synchronous Step-Down Converter
RT5784B Synchronous Step-Down Converter
RT5788A Synchronous Step-Down Converter
RT5788B 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
® RT5785A/B 2A, 6V, 1.5MHz, 25μA IQ, ACOTTM Synchronous Step-Down Converter 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 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.