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ADP3197 - 6-Bit Programmable 2-/3-Phase Synchronous Buck Controller

Datasheet Summary

Description

The ADP31971 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, Advanced Micro Devices, AMD processors.

Features

  • Selectable 2-phase and 3-phase operation at up to 1 MHz per phase ±10 mV worst-case differential sensing error over temperature Logic-level PWM outputs for interface to external high power drivers Enhanced PWM flex mode for excellent load transient performance Active current balancing between all output phases Built-in power good/crowbar blanking that supports on-the-fly VID code changes Digitally programmable 0.3750 V to 1.55 V output Programmable short-circuit protection with programmable latc.

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Datasheet preview – ADP3197

Datasheet Details

Part number ADP3197
Manufacturer Analog Devices
File Size 540.48 KB
Description 6-Bit Programmable 2-/3-Phase Synchronous Buck Controller
Datasheet download datasheet ADP3197 Datasheet
Additional preview pages of the ADP3197 datasheet.

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Full PDF Text Transcription

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6-Bit Programmable 2-/3-Phase Synchronous Buck Controller ADP3197 FEATURES Selectable 2-phase and 3-phase operation at up to 1 MHz per phase ±10 mV worst-case differential sensing error over temperature Logic-level PWM outputs for interface to external high power drivers Enhanced PWM flex mode for excellent load transient performance Active current balancing between all output phases Built-in power good/crowbar blanking that supports on-the-fly VID code changes Digitally programmable 0.3750 V to 1.55 V output Programmable short-circuit protection with programmable latch-off delay FUNCTIONAL BLOCK DIAGRAM VCC 24 RT 9 RAMPADJ 10 SHUNT REGULATOR OSCILLATOR SET GND 15 EN 16 OD UVLO SHUTDOWN 800mV EN 1 – + CURRENT BALANCING CIRCUIT + CMP – + CMP – + CMP – RESET 23 PWM1 2.
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