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RT8023 - 1.2MHz 1.5A Synchronous Step-Down Converter

Description

The RT8023 combines two low dropout (LDO) linear regulators and a step-down converter with an input voltage range of 2.6V to 5.5V.

Each output voltage is adjustable from 0.8V to 5V.

Features

  • include high output accuracy, current limiting protection, and 40μs fast turnon time. The step-down converter is a 1.2MHz PWM, current mode converter. Its high switching frequency allows the use of tiny, low cost capacitors and inductors 2mm or less in height. Internal power switches with low on-resistance increase efficiency and eliminate the need for external Schottky diodes. The converter can run at 100% duty cycle for low dropout operation that extends battery life in portable systems. Feat.

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Datasheet Details

Part number RT8023
Manufacturer Richtek
File Size 382.44 KB
Description 1.2MHz 1.5A Synchronous Step-Down Converter
Datasheet download datasheet RT8023 Datasheet

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Full PDF Text Transcription

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RT8023 1.2MHz 1.5A Synchronous Step-Down Converter with Two LDOs General Description The RT8023 combines two low dropout (LDO) linear regulators and a step-down converter with an input voltage range of 2.6V to 5.5V. Each output voltage is adjustable from 0.8V to 5V. With independent Enable and PowerGood pins for each regulator, it is easy to control the power up sequence, which is important in some applications. The LDO has an independent input and is capable of delivering up to 700mA(LDO1) and 350mA(LDO2) output currents with ultra-low dropout. The LDO has high PSRR and can work with low-ESR space saving ceramic capacitors. All these make it Ideal for portable RF and wireless applications with demanding performance and space requirements.
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