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RT7280 - Synchronous Step-Down Converter

Download the RT7280 datasheet PDF. This datasheet also covers the RT7274 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 RT7274/79/80/81 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 2A output current from a 4.5V to 18V input supply.

Key Features

  • z ACOTTM Mode Enables Fast Transient Response z 4.5V to 18V Input Voltage Range z 2A Output Current z High Efficient Internal N-MOSFET Optimized for Lower Duty Cycle.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT7274_Richtek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT7280
Manufacturer Richtek
File Size 386.92 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT7280 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
® RT7274/79/80/81 2A, 18V, 700kHz ACOTTM Synchronous Step-Down Converter General Description The RT7274/79/80/81 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 2A 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, RT7274/79/80/81 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.