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RT7279 Datasheet Synchronous Step-down Converter

Manufacturer: Richtek

Overview: ® RT7274/79/80/81 2A, 18V, 700kHz ACOTTM Synchronous Step-Down Converter.

This datasheet includes multiple variants, all published together in a single manufacturer document.

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.

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.

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