ADP3186 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADP3186
Manufacturer

ADI
ChipWorker Part#

CW622370081
RoHS

Lead free / RoHS Compliant
Description

5Bit Programmable 2-/3-/4-Phase Synchronous Buck Controller
Documentation

Datasheet

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ADP3186 Specifications

Attribute	Attribute Value

Part Number	ADP3186
Manufacturer	ADI
ChipWorker Part#	CW622370081
Documentation	Datasheet
	expand all
Product Lifecycle Status	Unknown
RoHS	RoHS Compliant

Product Description

GENERAL DESCRIPTION
The ADP3186 is a highly efficient multiphase synchronous buck switching regulator controller optimized for converting a 12 V main supply into the core supply voltage required by high performance AMD processors. It uses an internal 5-bit DAC to read a voltage identification (VID) code directly from the processor, which is used to set the output voltage between 0.8 V and 1.55 V. It uses a multimode PWM architecture to drive the logic-level outputs at a programmable switching frequency that can be optimized for VR size and efficiency. The phase relation ship of the output signals can be programmed to provide 2-, 3-, or 4-phase operation, allowing the construction of up to four complementary buck switching stages.
FEATURES
Selectable 2-, 3-, or 4-phase operation at up to 1 MHz per phase
±1% worst-case differential sensing error over temperature
Logic-level PWM outputs for interface to external high power drivers
Active current balancing between all output phases
Built-in power good/crowbar blanking supports on-the-fly VID code changes
5-bit digitally programmable 0.8 V to 1.55 V output
Programmable short-circuit protection with programmable latch-off delay
APPLICATIONS
Desktop PC power supplies for AMD Opteron™ processors VRM modules

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