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RT9226 - PWM Step-down DC/DC Converter Controller

Features

  • The RT9226 is a low cost, high-efficiency voltage-mode PWM controller for motherboard power supply.

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Datasheet preview – RT9226

Datasheet Details

Part number RT9226
Manufacturer Richtek
File Size 77.32 KB
Description PWM Step-down DC/DC Converter Controller
Datasheet download datasheet RT9226 Datasheet
Additional preview pages of the RT9226 datasheet.

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Full PDF Text Transcription

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RT9226 March, 2000 PWM Step-down DC/DC Converter Controller General Description Features The RT9226 is a low cost, high-efficiency voltage-mode PWM controller for motherboard power supply application. High-side N-channel MOSFET driver, short-circuit protection, and soft start function are integrated in a single chip. A simple high power buck regulator with shutdown function can be implemented with minimum external components. The RT9226 provides current-limit protection by monitoring the voltage drop across N-channel MOSFET in over current condition, therefore, eliminates the current sensing resistor and minimizes the efficiency loss. The soft start function reduces the stress on power supply and components in power on duration.
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