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RT8871B

Part Number	RT8871B
Manufacturer	Richtek
Description	4/3/2-Phase PWM Controller
Published	Sep 3, 2017
Detailed Description	® 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-phas...
Datasheet	RT8871B PDF File

Overview

® 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...

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