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RT6218B Datasheet Step-down Converter

Manufacturer: Richtek

Overview: RT6218A/B 18V, 2A, ACOTTM Step-Down Converter in 8 Pin TSOT-23.

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

General Description

The RT6218A/B is a simple, easy-to-use, 2A synchronous step-down DC-DC converter with an input supply voltage range of 4.5V to 18V.

The device integrates low RDS(ON) power MOSFETs to achieve high efficiency in a SOT23 package and build-in accurate reference voltage (0.765V by product options).

The RT6218A/B adopts Advanced Constant On-Time (ACOTTM) control architecture to provide an ultrafast transient response with few external ponents and to operate in nearly constant switching frequency over the line, load, and output voltage range.

Key Features

  • cycle-by-cycle current limit protection and prevent the device from the catastro.

RT6218B Distributor