NCP5314 datasheet(1/29 Pages) ONSEMI

Part #	NCP5314

Description	Two/Three/Four?뭁hase Buck CPU Controller

Download	29 Pages

Scroll/Zoom	100%

Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

Logo

1 / 29 page

January, 2007 − Rev. 10

1

Publication Order Number:

NCP5314/D

NCP5314

Two/Three/Four−Phase

Buck CPU Controller

The NCP5314 provides full−featured and flexible control for the

latest high−performance CPUs. The IC can be programmed as a two−,

three− or four−phase buck controller, and the per−phase switching

frequency can be as high as 1.2 MHz. Combined with external gate

drivers and power components, the controller implements a compact,

highly integrated multi−phase buck converter.

Enhanced V2

™ control inherently compensates for variations in

both line and load, and achieves current sharing between phases. This

control scheme provides the industry’s fastest transient response,

reducing the need for large banks of output capacitors and higher

switching frequency.

The controller meets VR(M)10.x specifications with all the required

functions and protection features.

Features

• Switching Regulator Controller

♦ Programmable 2/3/4 Phase Operation

♦ Lossless Current Sensing

♦ Enhanced V2 Control Method Provides Fast Transient Response

♦ Programmable Up to 1.2 MHz Switching Frequency Per Phase

♦ 0 to 100% Adjustment of Duty Cycle

♦ Programmable Adaptive Voltage Positioning Reduces Output

Capacitor Requirements

♦ Programmable Soft−Start

• Current Sharing

♦ Differential Current Sense Pins for Each Phase

♦ Current Sharing Within 10% Between Phases

• Protection Features

♦ Programmable Pulse−by−Pulse Current Limit for Each Phase

♦ “111110” and “111111” DAC Code Fault

♦ Latching Off Overvoltage Protection

♦ Programmable Latching Overcurrent Protection

♦ Undervoltage Lockout

♦ External Enable Control

♦ Three−State MOSFET Driver Control through Driver−On Signal

• System Power Management

♦ 6−Bit DAC with 0.5% Tolerance Compatible with VR(M)10.x

Specification

♦ Programmable Lower Power Good Threshold

♦ Power Good Output

• Pb−Free Package is Available

http://onsemi.com

A

= Assembly Location

WL

= Wafer Lot

YY

= Year

WW

= Work Week

G

= Pb−Free Package

MARKING DIAGRAMS

32 PIN QFN

MN SUFFIX

CASE 485J

(Bottom View)

32

NCP5314

AWLYYWW

1

LQFP−32

FTB SUFFIX

CASE 873A

NCP5314

AWLYYWWG

32

1

ILIM

ROSC

VCC

GATE1

GATE2

GATE3

GATE4

GND

VID2

VID3

VID4

PWRLS

VFFB

SS

PWRGD

DRVON

1

2

3

4

5

6

7

8

24

23

22

21

20

19

18

17

32 31 30 29 28 27 26 25

9 10 11 12 13 14 15 16

PIN CONNECTIONS

Device

Package

Shipping†

ORDERING INFORMATION

NCP5314MNR2

32 Pin QFN

2500 Tape & Reel

2000 Tape & Reel

NCP5314FTR2

LQFP−32

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

2000 Tape & Reel

NCP5314FTR2G

LQFP−32

(Pb−Free)

Similar Part No. - NCP5314

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	NCP5314	325Kb / 28P	Two/Three/Four-Phase Buck CPU Controller September, 2004 ??Rev. 9
	NCP5314	3Mb / 4P	AC-DC Offline Switching Controllers/Regulators Rev.0, Jun-2005
	NCP5314FTR2	325Kb / 28P	Two/Three/Four-Phase Buck CPU Controller September, 2004 ??Rev. 9
	NCP5314MNR2	325Kb / 28P	Two/Three/Four-Phase Buck CPU Controller September, 2004 ??Rev. 9

More results

Similar Description - NCP5314

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	NCP5318	373Kb / 31P	Two/Three/Four?뭁hase Buck CPU Controller June, 2006 ??Rev. 4
	NCP5314	325Kb / 28P	Two/Three/Four-Phase Buck CPU Controller September, 2004 ??Rev. 9
	NCP5316	997Kb / 31P	Four/Five/Six?뭁hase Buck CPU Controller July, 2006 ??Rev. 10
	CS5307	880Kb / 24P	Four?뭁hase VRM 9.0 Buck Controller July, 2006 ??Rev. 9
	NCP5306	872Kb / 24P	Three?뭁hase VRM 9.0 Buck Controller July, 2006 ??Rev. 3
	CS5323	328Kb / 16P	Three?뭁hase Buck Controller with 5?묪it DAC July, 2006 ??Rev. 7
	CS5303	390Kb / 19P	Three?뭁hase Buck Controller with Integrated Gate Drivers July, 2006 ??Rev. 14
	NCP5316	355Kb / 32P	Four/Five/Six-Phase Buck CPU Controller February, 2004 ??Rev. 9
	CS5332	400Kb / 20P	Two?뭁hase Buck Controller with Integrated Gate Drivers for VRM 9.0 July, 2006 ??Rev. 11
	CS5301	181Kb / 19P	Three?뭁hase Buck Controller with Integrated Gate Drivers and Power Good February, 2006 ??Rev. 12

More results

NCP5314 Datasheet(PDF) 1 Page - ON Semiconductor

NCP5314 Datasheet(HTML) 1 Page - ON Semiconductor

Similar Part No. - NCP5314

Similar Description - NCP5314

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

Datasheet Download

Link URL