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RT8871B

Richtek
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 PDF File RT8871B PDF File

RT8871B
RT8871B

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 packages.
Applications z Desktop CPU Core Power z Low Voltage, High Current DC/DC Converter Ordering Information RT8871A/B Package Type QW : WQFN-48L 7x7 (W-Type) QW : WQFN-48L 6x6 (W-Type) (Exposed Pad-Option 1) Lead Plating System Z : ECO (Ecological Element with Halogen Free and Pb free) A : WQ...


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