IRU1261 Просмотр технического описания (PDF) - International Rectifier

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IRU1261

DUAL 6A AND 1A LOW DROPOUT POSITIVE FIXED 1.5V AND 2.5V REGULATOR

International Rectifier 

IRU1261

TYPICAL APPLICATION

PENTIUM Ι Ι ™ APPLICATION

3.3V

C1

VOUT1 5

VIN 4

IRU1261 Gnd 3

C2

VOUT2 2

VCTRL 1

2.5V / 1A

C3

1.5V / 6A

C4

5V

R1

Figure 3 - Typical application of IRU1261 in the Pentium IITM design with the 1.5V

output providing for GTL+ termination while 2.5V supplies the clock chip.

Note: Pentium IITM is trademark of Intel Corp.

Ref Desig

U1

C1, C4

C3

C2

R1

HS1

Description

Dual LDO Regulator

Capacitor

Capacitor

Capacitor

Resistor

Heat Sink

Qty

Part #

Manuf

1 IRU1261CM

IR

2 Elect, 680mF, EEUFA1A681L

Panasonic

1 Elect, 220mF, 6.3V, ECAOJFQ221 Panasonic

1 Ceramic, 1mF, 16V, Z5U

1 3V, 0.1W, 0805 SMT

Panasonic

1) Use 1" Square Copper Pad area if IOUT2<1.7A and

IOUT1<0.2A.

2) For IOUT2<3A and IOUT1<0.5A, use IRU1261CT and

Thermalloy 6030B

3) For IOUT2<5.4A and IOUT1<0.5A, use IRU1261CT and

Thermalloy 7021B

Rev. 2.0

09/19/02

IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105

TAC Fax: (310) 252-7903

Visit us at www.irf.com for sales contact information

Data and specifications subject to change without notice. 02/01

www.irf.com

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