ncp5306dw ON Semiconductor, ncp5306dw Datasheet

ncp5306dw

Manufacturer Part Number

ncp5306dw

Description

Threephase Vrm 9.0 Buck Controller

Manufacturer

ON Semiconductor

Datasheet

1.NCP5306DW.pdf (24 pages)

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NCP5306

Three−Phase VRM 9.0

Buck Controller

control features required to power the next generation of processors in

desktop, workstation and server applications. Combined with external

gate drivers and power components, the NCP5306 implements a

compact, highly integrated buck converter. Enhanced V

inherently compensates for variations in both line and load. Current

sharing between phases is achieved by Peak Current Sharing.

threshold.

voltage/high current power supplies.

Features

•

July, 2006 − Rev. 3

Multiphase controllers provide fast, accurate regulation with the

The NCP5306 includes Power Good with a programmable lower

Applications include Embedded Processor Power and low

Switching Regulator Controller

Accurate Current Sharing

Protection Features

System Power Management

Guaranteed Startup at −20°C

−

and Fast Transient Response

Capacitor Requirements

Lossless Current Sensing

Enhanced V

Programmable Up to 800 kHz Switching Frequency (Per Phase)

Duty Cycle − 0% to 100%

Programmable Adaptive Voltage Positioning Reduces Output

Programmable Soft Start

Pulse−by−Pulse Current Limit for Each Phase

Programmable Hiccup Overcurrent Protection

All “1” DAC Code Fault

Processor Overvoltage Protection through Bottom MOSFETs

Undervoltage Lockout

5−Bit DAC With 1.0% Tolerance Compatible with VRM 9.0

Power Good Output

Programmable Power Good Lower Threshold

Control Method Provides Excellent Regulation

™ control

NCP5306DWR2

NCP5306DW

Device

ORDERING INFORMATION

OCSET

COMP

GND

MARKING DIAGRAM

CS3

CS2

CS1

PIN CONNECTIONS

OSC

DRP

REF

http://onsemi.com

DW SUFFIX

CASE 751E

AWLYYWW

Package

SO−24L

NCP5306

= Assembly Location

= Wafer Lot

= Year

= Work Week

SO−24L

Publication Order Number:

1000 Tape & Reel

GATE3

GATE2

GATE1

PWRGDS

PWRGD

ID0

ID1

ID2

ID3

ID4

30 Units/Rail

Shipping

NCP5306/D

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