isl6260c Intersil Corporation, isl6260c Datasheet

isl6260c

Manufacturer Part Number

isl6260c

Description

Multiphase Pwm Regulator For Imvp-6 Mobile Cpus

Manufacturer

Intersil Corporation

Datasheet

1.ISL6260C.pdf (28 pages)

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Multiphase PWM Regulator for IMVP-6

Mobile CPUs

The ISL6260C is a multiple phase PWM buck regulator for

miroprocessor core power supply. The multiple phase

implementation results in better system performance, superior

thermal management, lower component cost, reduced power

dissipation, and smaller implementation area. The ISL6260C

multiphase controller together with ISL6208 external gate

drivers provide a complete solution to power Intel's mobile

microprocessors. The PWM modulator of ISL6260C is based

on Intersil's Robust Ripple Regulator technology (R

Compared with the traditional multiphase buck regulator, the R

modulator commands variable switching frequency during load

transients, which achieves faster transient response. With the

same modulator, the switching frequency is reduced at light

load conditions resulting higher operation efficiency.

Intel Mobile Voltage Positioning (IMVP) reduces power

dissipation for Intel Pentium processors. The ISL6260C is

designed to be completely compliant with IMVP-6

specifications. ISL6260C responds to PSI# signal by adding or

dropping PWM2 and adjusting overcurrent protection

accordingly. To reduce audible noise, the DPRSLPVR signal

can be used to reduce output voltage slew rates when entering

and exiting Deeper Sleep State according to Intel specification.

The ISL6260C has several other key features. ISL6260C

reports output power through a power monitor pin. Current

sense can be achieved by using either inductor DCR or

discrete precision resistor. In the case of DCR current

sensing, a single NTC thermistor is used to thermally

compensate the inductor DCR variation with temperature. A

unity gain, differential amplifier is available for remote

voltage sensing. This allows the voltage on the CPU die to

be accurately regulated to meet Intel IMVP-6 specifications.

Ordering Information

ISL6260CCRZ

ISL6260CCRZ-T*

ISL6260CIRZ

ISL6260CIRZ-T*

*Please refer to TB347 for details on reel specifications.

NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin

plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are

MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

PART NUMBER

(Note)

ISL6260 CCRZ

ISL6260 CIRZ

PART MARKING

Data Sheet

1-888-INTERSIL or 1-888-468-3774

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

TEMP. RANGE

-10 to +100

-40 to +100

(°C)

Features

• Precision Multiphase Core Voltage Regulation

• Microprocessor Voltage Identification Input

• Multiple Current Sensing Approaches Supported

• Supports PSI# and Narrow VDC for Enhanced Battery Life

• Superior Noise Immunity and Transient Response

• Power Monitor and Thermal Monitor

• Differential Remote Voltage Sensing

• High Efficiency Across Entire Load Range

• Programmable 1, 2 or 3 Power Channels

• Excellent Dynamic Current Balance between Channels

• Small Footprint 40 Ld 6x6 QFN Package

• Pb-Free Available (RoHS Compliant)

Applications

• Mobile Laptop Computers

- 0.5% System Accuracy Over Temperature

- Enhanced Load Line Accuracy

- 7-Bit VID Input

- 0.300V to 1.500V in 12.5mV Steps

- Supports VID Changes On-The-Fly

- Lossless DCR Current Sensing

- Precision Resistive Current Sensing

(EBL) Initiatives

All other trademarks mentioned are the property of their respective owners.

March 6, 2009

40 Ld 6x6 QFN

40 Ld 6x6 QFN Tape and Reel

40 Ld 6x6 QFN

40 Ld 6x6 QFN Tape and Reel

Intersil (and design) is a registered trademark of Intersil Americas Inc.

PACKAGE

(Pb-Free)

ISL6260C

L40.6x6

FN9259.2

DWG. #

PKG.

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