IRU3065(PbF)

1

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TYPICAL APPLICATION

DESCRIPTION

The IRU3065 controller is designed to provide solutions

for the applications requiring low power on board switch-

ing regulators. The IRU3065 is specifically designed

for positive to negative conversion and uses few com-

ponents for a simple solution. The IRU3065 operates at

high switching frequency (up to 1.5MHz), resulting in

smaller magnetics. The output voltage can be set by

using an external resistor divider. The stability over all

conditions is inherent with this architecture without any

compensation. The device is available in the standard

6-Pin SOT-23.

Generate Negative Output from +5V Input

1A Maximum Output Current

1.5MHz maximum Switching Frequency

Few External Components

Available in 6-Pin SOT-23

FEATURES

APPLICATIONS

Hard Disk Drives

Blue Laser for DVD R-W

MR Head Bias

LCD Bias

GaAs FET Bias

Positive-to-Negative Conversion

Data Sheet No. PD94703 revA

Figure 1 - Typical application of IRU3065 for single input voltage.

POSITIVE TO NEGATIVE DC TO DC CONTROLLER

PRODUCT DATASHEET

R3

R2

IRU3065

U1

Vcc

Gnd

5V

D1

BAT54

D2

L1

1.2uH

Q1

IRLML5203

R1

0.1

R2

R3

C6

10uF

C3

100pF

10K

10K

10BQ015

C1 1uF

C4

10uF

PACKAGE ORDER INFORMATION

°C)

DEVICE

PACKAGE

OUTPUT VOLTAGE

0 To 70

IRU3065CLTR

6-Pin SOT-23 (L6)

Adjustable

°C)

DEVICE

PACKAGE

OUTPUT VOLTAGE

0 To 70

IRU3065CLTRPbF

6-Pin SOT-23 (L6)

Adjustable

Basic Part (Non Lead-Free)

Lead-Free Part