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RT8871A - 4/3/2-Phase PWM Controller

Description

The RT8871A/B is a 4/3/2-phase synchronous buck controller with two integrated MOSFET drivers for CPU power application and a single-phase buck with integrated MOSFET driver for North-Bridge (NB) chipset.

Features

  • include adjustable operating frequency, power good indication, external error-amp compensation, over voltage protection, over current protection and enable/shutdown for various.

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Datasheet Details

Part number RT8871A
Manufacturer Richtek
File Size 430.28 KB
Description 4/3/2-Phase PWM Controller
Datasheet download datasheet RT8871A Datasheet

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Full PDF Text Transcription

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® RT8871A/B 4/3/2-Phase PWM Controller for AMD AM2/AM2+/AM3/FM1 CPUs General Description The RT8871A/B is a 4/3/2-phase synchronous buck controller with two integrated MOSFET drivers for CPU power application and a single-phase buck with integrated MOSFET driver for North-Bridge (NB) chipset. The RT8871A/B uses differential inductor DCR current sense to achieve phase current balance and active voltage positioning. Other features include adjustable operating frequency, power good indication, external error-amp compensation, over voltage protection, over current protection and enable/shutdown for various applications. The RT8871A/B comes in a small footprint with WQFN48L 7x7 and WQFN-48L 6x6 packages.
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