IRNBPS1 International Rectifier, IRNBPS1 Datasheet

IRNBPS1

Manufacturer Part Number

IRNBPS1

Description

KIT DESIGN PENTIUM II IRF7805/7

Manufacturer

International Rectifier

Datasheet

1.IRNBPS1.pdf (4 pages)

Specifications of IRNBPS1

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Other names

*IRNBPS1

Current page: 1 of 4
Download datasheet (459Kb)

The new IRNBPS1 evaluation board offers the power

supply designer a convenient way to evaluate power

MOSFET performance in DC/DC converters powering

next-generation mobile processors. A synchronous

buck regulator topology operating at 300 kHz is

employed. A DAC selectable output voltage allows

evaluation at various voltages for existing and

forthcoming mobile processors.

The new 30V low threshold SO-8 IRF7805 and

IRF7807 HEXFET

for the application, are used to improve circuit efficiency

through reduced R

and IRF7807 are optimized for switching and

conduction losses under the operating range. A detailed

schematic along with complete efficiency and thermal

performance characterization are offered to reduce the

customer’s test and verification time when designing

with IR MOSFETs.

Mobile Pentium II Power Supply Evaluation Board

This evaluation tool is available to power supply

designers to verify and qualify the performance of IR

power MOSFETs under “real world” mobile CPU DC/

DC converter conditions.

This evaluation board datasheet as well as the IRF7805

and IRF7807 datasheets may be downloaded at IR’s

web site (http://www.irf.com). Datasheets are in PDF

format for on screen viewing or printing.

Evaluation boards are available through your local IR

sales office in the Mobile Pentium

order as IRNBPS1.

E-mail Chris Davis at cdavis1@irf.com for support of

this evaluation board and the IRF7805 and IRF7807

MOSFETs.

Evaluation Boards

DS(on)

MOSFETs, specifically designed

Web Site

Purpose

Support

and gate charge. The IRF7805

90% Peak Efficiency Achieved

II Design Kit -

• 90% Peak Efficiency @ 10V

• Designed for new mobile Pentium II

• Accepts input voltages from 10V to 24V

• 1.25 to 2.00V digitally selectable output

• Up to 7A continuous output

• Complete efficiency characterization

• Complete thermal characterization

• Design kit available: IRNBPS1

Intel Trademark

processors.

Key Features

Fig 1. IRNBPS1

IRNBPS1

PD-91748

Related parts for IRNBPS1

IRNBPS1 Summary of contents

Page 1

... Mobile Pentium II Power Supply Evaluation Board 90% Peak Efficiency Achieved The new IRNBPS1 evaluation board offers the power supply designer a convenient way to evaluate power MOSFET performance in DC/DC converters powering next-generation mobile processors. A synchronous buck regulator topology operating at 300 kHz is employed. A DAC selectable output voltage allows evaluation at various voltages for existing and forthcoming mobile processors ...

Page 2

... Output F ault Pro tection Param eter Ov er Voltage Ov er Current Under Voltage Circuit Description The IRNBPS1 evaluation board provides a digitally adjustable output voltage between 1.25V and 2V from a 10V input supply. The output voltage is digitally adjusted by the MAX5480, a multiplying digital to analog converter (DAC). Refer to Table 2 for the DAC codes ...

Page 3

... International Rectifier IRNBPS1 3 ...

Page 4

... IRNBPS1 Static Performance Efficiency High efficiency is expected in a mobile CPU converter. Thanks to the application specific IRF7805 & IRF7807 MOSFETs, the efficiency is kept high throughout low load Fig 3. Typical Efficiency, Constant Frequency PWM V = 1.6V 300kHz, +5V ext. out Fig 6. Typical 25º 1. out (still air) ...

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