Datasheet > ISL62881B

ISL62881B

更新时间： 2024-11-13 05:39:43

品牌	Logo	应用领域
英特矽尔 - INTERSIL		稳压器
页数	文件大小	规格书
35页	1095K
描述
Single-Phase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs

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ISL62881B 数据手册

™

Single-Phase PWM Regulator for IMVP-6.5 Mobile

CPUs and GPUs

ISL62881, ISL62881B

Features

• Precision Core Voltage Regulation

- 0.5% System Accuracy Over-Temperature

- Enhanced Load Line Accuracy

The ISL62881 is a single-phase PWM buck regulator for

miroprocessor or graphics processor core power supply.

It uses an integrated gate drivers to provide a complete

solution. The PWM modulator of ISL62881 is based on

• Voltage Identification Input

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

- Supports VID Changes On-The-Fly

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

3™

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 Multiple Current Sensing Methods

- Lossless Inductor DCR Current Sensing

- Precision Resistor Current Sensing

• Superior Noise Immunity and Transient Response

• Current Monitor

The ISL62881 can be configured as CPU or graphics

Vcore controller and is fully compliant with IMVP-6.5

™

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.

• Differential Remote Voltage Sensing

• High Efficiency Across Entire Load Range

• Integrated Gate Driver

• Split LGATE Driver to Increase Light-Load Efficiency

(For ISL62881B)

• Adaptive Body Diode Conduction Time Reduction

• User-selectable Overshoot Reduction Function

• Capable of Disabling the Droop Function

• Audio-filtering for GPU Application

• Small Footprint 28 Ld 4x4 TQFN Package

• Pb-Free (RoHS Compliant)

Maintaining all the ISL62881 functions, the ISL62881B

offers VR_TT# function for thermal throttling control. It

also offers the split LGATE function to further improve

light load efficiency.

Applications

• Notebook Computers

Ordering Information

PART NUMBER

(Notes 1, 2, 3)

TEMP. RANGE

(°C)

PACKAGE

(Pb-Free)

PKG.

DWG. #

PART MARKING

628 81HRTZ

62881B HRTZ

ISL62881HRTZ*

-10 to +100

28 Ld 4x4 TQFN

32 Ld 5x5 TQFN

L28.4x4

L32.5x5E

ISL62881BHRTZ*

NOTES:

1. Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications.

2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach

materials, and 100% matte tin plate plus anneal (e3 termination finish, which is 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.

3. For Moisture Sensitivity Level (MSL), please see device information page for ISL62881, ISL62881B. For more information on

MSL please see techbrief TB363.

October 26, 2009

FN6924.0

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ISL62881B相关器件

型号	品牌	获取价格	描述	数据表
ISL62881BHRTZ	INTERSIL	获取价格	Single-Phase PWM Regulator for IMVP-6.5™ Mobi
ISL62881C	INTERSIL	获取价格	Single-Phase PWM Regulator for IMVP-6.5â¢ Mo
ISL62881CHRTZ	INTERSIL	获取价格	Single-Phase PWM Regulator for IMVP-6.5â¢ Mo
ISL62881CHRTZ	RENESAS	获取价格	Single-Phase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs; TQFN28; Temp Rang
ISL62881CHRTZ-T	RENESAS	获取价格	Single-Phase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs; TQFN28; Temp Rang
ISL62881CIRTZ	INTERSIL	获取价格	Single-Phase PWM Regulator for IMVP-6.5™ Mobi
ISL62881CIRTZ-T	RENESAS	获取价格	Single-Phase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs; TQFN28; Temp Rang
ISL62881D	INTERSIL	获取价格	Single-Phase PWM Regulator for IMVP-6.5â¢ Mo
ISL62881DHRTZ	INTERSIL	获取价格	Single-Phase PWM Regulator for IMVP-6.5™ Mobi
ISL62881DHRTZ	RENESAS	获取价格	Single-Phase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs; TQFN32; Temp Rang

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