IRU1175CS datasheet(1/6 Pages) IRF

Part #	IRU1175CS

Description	7.5A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR

PDF	6 Pages

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Manufacturer	IRF [International Rectifier]

Direct Link	http://www.irf.com

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IRU1175

2-79

Rev. 1.2

11/29/99

7.5A ULTRA LOW DROPOUT POSITIVE

ADJUSTABLE REGULATOR

The IRU1175 is a 7.5A regulator with extremely low drop-

out voltage using a proprietary bipolar process that

achieves comparable equivalent on resistance to that of

discrete MOSFETs. This product is specifically designed

to provide well regulated supply for applications requir-

ing very low dropout such as 2.8V from 3.3V ATX power

supplies where the same efficiency as the switcher can

be achieved without the cost and complexity associ-

ated with switching regulators. One such application is

the new graphic chipsets that requires 2.7V supply such

as the Intel I740 chipset.

DESCRIPTION

0.5V Dropout at 7.5A (Equivalent of 67m

Ω)

Fast Transient Response

1% Voltage Reference Initial Accuracy

Built-in Thermal Shutdown

PRELIMINARY DATASHEET

APPLICATIONS

FEATURES

3.3V to 2.7V Intel I740 chipset

TYPICAL APPLICATION

Typical application of IRU1175

PACKAGE ORDER INFORMATION

Tj (

°C)

5-PIN PLASTIC

8-PIN PLASTIC

TO-263 (M)

ULTRA THIN-PAK (P)

SOIC (S)

0 TO 125

IRU1175CM

IRU1175CP

IRU1175CS

3.3V

IRU1175

2.7V

C1

C3

1175app1-1.0

5V

C2

R1

R2

1

2

3

4

5

Vsense

Adj

Vout

Vctrl

Vin

100uF

10uF

100

1%

124

1%

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