IRU1237SC datasheet(1/7 Pages) IRF

No de pièce	IRU1237SC

Description	THREE INTEGRATED, FIXED OUTPUT LINEAR VOLTAGE REGULATORS

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Fabricant	IRF [International Rectifier]

Site Internet	http://www.irf.com

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IRU1237SC

1

Rev. 1.2

07/14/03

www.irf.com

PACKAGE ORDER INFORMATION

APPLICATIONS

DESCRIPTION

The IRU1237SC voltage regulator solution contains three

integrated, fixed, linear voltage regulators in one 7-pin

surface mount package. The first is a 2.6V regulator to

power the read channel and integrated controller/

mP. The

second is a 3.3V regulator to power the controller I/O

and memory chips requiring 3.3V. The last is an 8V regu-

lator to power the preamp chip. The bandgap reference,

the 8V ground, and the substrate are all tied to a com-

mon ground pin, while the 2.6V and 3.3V ground is tied

to a separate ground pin. This grounding scheme allows

for improved noise isolation between the 8V regulator

and the 2.6V and 3.3V regulators.

The 2.6V and 3.3V regulators shall each be capable of

1.2A continuous for a 5.25V input. The 8V regulator shall

be capable of 0.2A continuous for a 13.2V input.

THREE INTEGRATED, FIXED OUTPUT

LINEAR VOLTAGE REGULATORS

Figure 1 - Typical application of IRU1237SC.

Data Sheet No. PD94581

FEATURES

Stable with Ceramic Capacitor

Fixed 8V, 3.3V and 2.6V

Fast Transient Response

Output Current Limiting for each outputs

Built-In Thermal Shutdown

Hard Disk Drive

Multi-Outputs Applications

High Efficiency Linear Regulator

PRELIMINARY DATA SHEET

TYPICAL APPLICATION

TJ (°C)

7-PIN PLASTIC

PACKAGE

Ultra Thin-PakTM (P)

MARKING

0 To 150

IRU1237SCCP

US1237SCCP

Gnd26/33

V33

VCC

Gnd8

V8

VDD

V26

10uF

12V

5V

IRU1237SC

10uF

1uF

10uF

2.6V / 1.2A

8V / 200mA

3.3V / 1.2A

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