Datasheet > ISL62883

ISL62883

更新时间： 2024-09-25 05:39:43

品牌	Logo	应用领域
英特矽尔 - INTERSIL		稳压器手机
页数	文件大小	规格书
39页	1129K
描述
Multiphase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs

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ISL62883 数据手册

Multiphase PWM Regulator for IMVP-6.5™ Mobile

CPUs

ISL62883, ISL62883B

Features

• Precision Multiphase Core Voltage Regulation

- 0.5% System Accuracy Over-Temperature

- Enhanced Load Line Accuracy

The ISL62883 is a multiphase PWM buck regulator for

miroprocessor core power supply. The multiphase buck

converter uses interleaved phase to reduce the total

output voltage ripple with each phase carrying a portion

of the total load current, providing better system

performance, superior thermal management, lower

component cost, reduced power dissipation, and smaller

implementation area. The ISL62883 uses two integrated

gate drivers and an external gate driver to provide a

complete solution. The PWM modulator is based on

• Microprocessor Voltage Identification Input

- 7-Bit VID Input, 0.300V 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

Intersil's Robust Ripple Regulator (R ) technology™.

Compared with traditional modulators, the R ™

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.

• Supports PSI# and DPRSLPVR modes

• Superior Noise Immunity and Transient Response

• Current Monitor and Thermal Monitor

• Differential Remote Voltage Sensing

The ISL62883 is fully compliant with IMVP-6.5™

specifications. It responds to PSI# and DPRSLPVR signals

by adding or dropping PWM3 and Phase 2 respectively,

adjusting overcurrent protection threshold accordingly,

and 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. In 2-Phase

• High Efficiency Across Entire Load Range

• Programmable 1-, 2- or 3-Phase Operation

• Two Integrated Gate Drivers

• Excellent Dynamic Current Balance Between Phases

• FB2 Function in 2-Phase Configuration to Optimize

1-Phase Performance

• Adaptive Body Diode Conduction Time Reduction

• User-selectable Overshoot Reduction Function

• Small Footprint 40 Ld 5x5 or 48 Ld 6x6 TQFN

Package

• Pb-Free (RoHS Compliant)

Applications

• Notebook Computers

configuration, the ISL62883 offers the FB2 function to

optimize 1-Phase performance.

The ISL62883B has the same functions as the ISL62883,

but comes in a different package.

February 25, 2010

FN6891.2

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.

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

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与ISL62883相关器件

型号	品牌	获取价格	描述	数据表
ISL62883B	RENESAS	获取价格	Multiphase PWM Regulator for IMVP-6.5 Mobile CPUs
ISL62883BHRTZ	INTERSIL	获取价格	Multiphase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs
ISL62883BHRTZ-T13	RENESAS	获取价格	Switching Controller
ISL62883C	INTERSIL	获取价格	Multiphase PWM Regulator for IMVP-6.5â¢ Mobi
ISL62883C	RENESAS	获取价格	Multiphase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs
ISL62883CHRTZ	INTERSIL	获取价格	Multiphase PWM Regulator for IMVP-6.5™ Mobile
ISL62883CHRTZ-T	INTERSIL	获取价格	Multiphase PWM Regulator for IMVP-6.5™ Mobile
ISL62883CIRTZ	INTERSIL	获取价格	Multiphase PWM Regulator for IMVP-6.5™ Mobile
ISL62883CIRTZ-T	INTERSIL	获取价格	Multiphase PWM Regulator for IMVP-6.5™ Mobile
ISL62883HRTZ	INTERSIL	获取价格	Multiphase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs

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