IRU1117-33

1

Rev. 1.5

02/04/03

www.irf.com

TYPICAL APPLICATION

DESCRIPTION

The IRU1117-33 is a low dropout three-terminal fixed out-

put regulator with minimum of 800mA output current ca-

pability. This product is specifically designed to provide

well regulated supply for low voltage IC applications such

as VGA, sound & DVD cards. The IRU1117-33 is guar-

anteed to have <1.2V dropout at full load current making

it ideal to provide well regulated with 4.75V to 7V input

supply. The IRU1117-33 is specifically designed to be

stable with low cost aluminum capacitors while main-

taining stability with low ESR tantalum caps.

800mA LOW DROPOUT POSITIVE

FIXED 3.3V REGULATOR

Figure 1 - Typical application of IRU1117-33 in a 5V to 3.3V regulator.

2-PIN PLASTIC

2-PIN PLASTIC

8-PIN PLASTIC

3-PIN PLASTIC

TO-252 (D-Pak)

SOIC (S)

SOT-223 (Y)

0 To 150

IRU1117-33CD

IRU1117-33CP

IRU1117-33CS

IRU1117-33CY

Data Sheet No. PD94172

PACKAGE ORDER INFORMATION

FEATURES

VGA & Sound Card Applications

Standard 3.3V Chip Set and Logic Applications

Guaranteed < 1.2V Dropout at 800mA Load

Current

Fast Transient Response

1% Output Voltage Initial Accuracy

Built-In Thermal Shutdown

and 8-Pin SOIC Surface-Mount Packages

APPLICATIONS

5V

3.3V / 800mA

C1

10uF

C2

10uF

IRU1117-33

3

1

2

Gnd