NCP5380 판매점 - Synchronous Buck Switching Regulator Controller

NCP5380

7-Bit, Programmable,

Single-Phase, Synchronous

Buck Switching Regulator

Controller

General Description

The NCP5380 is a highly efficient, single−phase, synchronous buck

switching regulator controller. With its integrated drivers, the

NCP5380 is optimized for converting the silver box voltage to the

supply voltage required by high performance Intel chipsets. An

internal 7−bit DAC is used to read a VID code directly from the

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The NCP5380 uses a multimode architecture. It provides

programmable switching frequency that can be optimized for

efficiency depending on the output current requirement. In addition,

the NCP5380 includes a programmable load line slope function to

adjust the output voltage as a function of the load current so that the

core voltage is always optimally positioned for a load transient. The

NCP5380 also provides accurate and reliable current overload

protection and a delayed power−good output. The IC supports

on−the−fly output voltage changes requested by the chipset.

The NCP5380 is specified over the extended commercial

temperature range of 0°C to 85°C and is available in a 32−lead QFN.

Features

• Single−chip Solution

• Fully Compatible with the Intel VR11 CPU Chipset Voltage

Regulator Specifications

• Integrated MOSFET Drivers

• ±8 mV Worst−case Differentially Sensed Core Voltage Error over

Temperature

• Automatic Power−saving Modes Maximize Efficiency During Light

Load Operation

• Soft Transient Control Reduces Inrush Current and Audio Noise

• Independent Current Limit and Load Line Setting Inputs for

Additional Design Flexibility

• Built−in Power−good Masking Supports Voltage Identification (VID)

On−the−fly Transients

• 7−bit, Digitally Programmable DAC

• Short−circuit Protection with Programmable Latch−off Delay

• Current Monitor Output Signal

• 32−lead QFN

• This is a Pb−Free Device

Applications

• Desktop Power Supplies for Next−generation Intel Chipsets

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MARKING

DIAGRAM

1 32

QFN32, 5x5

CASE 488AM

MN SUFFIX

NCP5380

AWLYYWWG

NCP5380 = Specific Device Code

A = Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

G = Pb Free Package

(Note: Microdot may be in either location)

PIN CONFIGURATION

PWRGD

IMON

N/C

FBRTN

COMP

GND

ILIM

NCP5380

(Top View)

VCC

BST

DRVH

PVCC

DRVL

PGND

GND

ORDERING INFORMATION

Device

Package

Shipping†

NCP5380MNR2G QFN−32 5000 / Tape & Reel

(Pb−Free)

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

May, 2009 − Rev. 0

Publication Order Number:

NCP5380/D

NCP5380 반도체 회로 부품 판매점

Synchronous Buck Switching Regulator Controller

국내 전력반도체 판매점

일반적인 전자부품 판매점

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