62884CIRTZ View Datasheet(PDF) - Intersil

Part Name

Description

Manufacturer

62884CIRTZ

Single-Phase PWM Regulator for IMVP-6™ Mobile CPUs

Intersil 

Single-Phase PWM Regulator for IMVP-6™ Mobile

CPUs

ISL62884C

The ISL62884C is a single-phase PWM buck regulator for

miroprocessor core power supply. It uses an integrated

gate drivers to provide a complete solution. The PWM

modulator of ISL62884C is based on Intersil's Robust

Ripple Regulator (R3™) technology. Compared with

traditional modulators, the R3™ modulator commands

variable switching frequency during load transients,

achieving faster transient response. With the same

modulator, the switching frequency is reduced at light

load, increasing the regulator efficiency.

The ISL62884C is fully compliant with IMVP-6™

specifications. It responds to DPRSLPVR signals by

entering/exiting diode emulation mode. It reports the

regulator output current through the IMON pin. It senses

the current by using either discrete resistor or inductor

DCR whose variation over-temperature can be thermally

compensated by a single NTC thermistor. It uses

differential remote voltage sensing to accurately regulate

the processor die voltage. The adaptive body diode

conduction time reduction function minimizes the body

diode conduction loss in diode emulation mode.

User-selectable overshoot reduction function offers an

option to aggressively reduce the output capacitors as

well as the option to disable it for users concerned about

increased system thermal stress.

Features

• Precision Core Voltage Regulation

- 0.5% System Accuracy Over-Temperature

- Enhanced Load Line Accuracy

• Voltage Identification Input

- 7-Bit VID Input, 0V to 1.500V in 12.5mV Steps

- Supports VID Changes On-The-Fly

• Supports Multiple Current Sensing Methods

- Lossless Inductor DCR Current Sensing

- Precision Resistor Current Sensing

• Superior Noise Immunity and Transient Response

• Current Monitor

• Differential Remote Voltage Sensing

• High Efficiency Across Entire Load Range

• Integrated Gate Driver

• Adaptive Body Diode Conduction Time Reduction

• User-selectable Overshoot Reduction Function

• Small Footprint 28 Ld 4x4 TQFN Package

• Pb-Free (RoHS Compliant)

Applications*(see page 29)

• Notebook Core Voltage Regulator

• Notebook GPU Voltage Regulator

Related Literature*(see page 29)

• See AN1545 for Evaluation Board Application Note

“ISL62884CEVAL2Z Evaluation User Guide”

Load Line Regulation

0.91

0.90

0.89

0.88

0.87

0.86

0.85

0.84

0.83

0.82

0.81

0.80

0

VIN = 19V

VIN = 12V

VIN = 8V

2 4 6 8 10 12 14 16 18 20 22

IOUT (A)

March 16, 2010

FN7591.0

1

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

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

Copyright © Intersil Americas Inc. 2010. All Rights Reserved

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

Share Link: