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ADP3168

Part Number	ADP3168
Manufacturer	Analog Devices
Description	4-Phase Synchronous Buck Controller
Published	Oct 26, 2006
Detailed Description	www.DataSheet4U.com 6-Bit, Programmable 2-, 3-, 4-Phase Synchronous Buck Controller ADP3168 FEATURES Selectable 2-, 3-,...
Datasheet	ADP3168 PDF File

Overview

www.
DataSheet4U.
com 6-Bit, Programmable 2-, 3-, 4-Phase Synchronous Buck Controller ADP3168 FEATURES Selectable 2-, 3-, or 4-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 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 FUNCTIONAL BLOCK DIAGRAM VCC 28 RAMPADJ 14 RT 13 ADP3168 UVLO SHUTDOWN AND BIAS 11 OSCILLATOR SET EN 27 EN 19 CMP RESET GND DAC +150mV CMP RESET CSREF CURRENTBALANCING CIRCUIT CMP DAC –250mV CMP RESET 2-, 3-, 4-PHASE DRIVER LOGIC RESET PWM1 26 PWM2 25 PWM3 24 PWM4 APPLICATIONS Desktop PC power supplies for: Next generation Intel® processors VRM modules 10 DELAY CROWBAR CURRENT LIMIT 23 PWRGD SW1 22 SW2 GENERAL DESCRIPTION T...

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