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ADP3188 Datasheet Synchronous Buck Controller

Manufacturer: Analog Devices

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General Description

The ADP3188 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 Intel processors.

The part uses an internal 6-bit DAC to read a voltage identification (VID) code directly from the processor, which is used to set the output voltage between 0.8375 V and 1.6 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.

Overview

6-Bit Programmable 2-/3-/4-Phase Synchronous Buck Controller.

Key Features

  • Selectable 2-, 3- or 4-phase operation at up to 1 MHz per phase ±9.5 mV 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 6-bit digitally programmable 0.8375 V to 1.6 V output Programmable short-circuit protection with programmable latch-off delay.

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