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RT9222

Richtek
Part Number RT9222
Manufacturer Richtek
Description Programmable Synchronous PWM Buck Converter
Published Mar 30, 2015
Detailed Description RT9222 Programmable Synchronous PWM Buck Converter with Dual Adjustable Low Dropout Linear Regulator Controller Genera...
Datasheet PDF File RT9222 PDF File

RT9222
RT9222

Overview
RT9222 Programmable Synchronous PWM Buck Converter with Dual Adjustable Low Dropout Linear Regulator Controller General Description The RT9222 integrates a PWM controller and two low-dropout linear regulators into a single chip.
The PWM controller provides the CPU core voltage controlled by a 5-bit DAC and the linear section regulates power for GTL bus, clock driver or other circuits on motherboards.
The PWM controller provides an adjustable Intel-compatible 1.
3V~3.
5V output voltage.
The synchronous N-MOSFET driver with 200 KHz switching frequency optimizes the efficiency, device size, and cost built-in over–voltage and current-limiting protection prevent the CPU from damage.
Power-good signal is sent when the core voltage is within ±10% of the setting point.
The linear section is a low dropout regulator which drives low cost NPN transistors.
The output level is user-adjustable and can be programmed by two external resistors and the internal 1.
265V reference.
Ordering Information RT9...


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