ADP3290 Datasheet PDF (Programmable 2- to 4-Phase Synchronous Buck Controller)

ADP3290 - Programmable 2- to 4-Phase Synchronous Buck Controller

Description

of Optional RSW Resistors, See the Theory of Operation Section.

Connect Near Each Inductor.

WX SERIES C1 + + C2 D1 1N4148 R1 10W VTT I/O C5 1nF POWER GOOD PROCHOT CB 120pF RB 1.21kW 3.3pF CA CFB 120pF RA CSS 28.0kW 8.2nF

Features

Selectable 2.
, 3.
, or 4.
Phase Operation at Up to 1 MHz Per Phase.
±7 mV Worse.
Case Differential Sensing Error.
Logic.
Level PWM Outputs for Interface to External High Power Drivers.
Fast.
Enhanced PWM FlexModet for Excellent Load Transient Performance.
TRDET to Improve Load Release.
Active Current Balancing Between All Output Phases.
Built.
In Power.
Good/Crowbar Blanking S.

Datasheet Details

Part number	ADP3290
Manufacturer	ON Semiconductor
File Size	599.53 KB
Description	Programmable 2- to 4-Phase Synchronous Buck Controller
Datasheet	ADP3290 Datasheet
Additional preview pages of the ADP3290 datasheet.

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Full PDF Text Transcription

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ADP3290 8-Bit, Programmable 2- to 4-Phase Synchronous Buck Controller The ADP3290 is a highly efficient, multi−phase, synchronous buck switching regulator controller optimized for converting a 12 V main supply voltage into the core supply voltage of high performance Intel processors. It uses an internal 8−bit DAC to read a Voltage Identification (VID) code directly from the processor, to set the output voltage between 0.5 V and 1.6 V. This device uses a multi−mode control architecture to drive the logic−level PWM outputs. The switching frequency can be programmed according to VR size and efficiency. The chip can provide 2−, 3− or 4−phase operation, allowing for the construction of up to four complementary buck switching stages.

Published: Jul 28, 2010 |