IRU1117-25 Просмотр технического описания (PDF) - International Rectifier

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IRU1117-25

800mA LOW DROPOUT POSITIVE FIXED 2.5V REGULATOR

International Rectifier 

IRU1117-25

PIN DESCRIPTIONS

PIN#

1

PIN SYMBOL

Gnd

PIN DESCRIPTION

Ground pin. This pin must be connected to ground plane using a low inductance short

connection.

2

VOUT

The output of the regulator. This pin is also connected to the tab of the package. An output

capacitor must be connected to this pin to insure stability of the regulator.

3

VIN

Input pin of the regulator. Typically a large storage capacitor is connected from this pin to

ground to insure that the input voltage does not sag below the minimum dropout voltage

during the load transient response. This pin must always be 1.3V higher than VOUT in order

for the device to regulate properly.

BLOCK DIAGRAM

VIN 3

2 VOUT

+

CURRENT

LIMIT

THERMAL

SHUTDOWN

1.25V +

1 Gnd

Figure 2 - Simplified block diagram of the IRU1117-25.

Rev. 1.5

02/04/03

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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