2007. 2. 26

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SEMICONDUCTOR

TECHNICAL DATA

KAB3403T/DN

BICD LINEAR INTEGRATED CIRCUIT

Revision No : 0

White LED Step-Up Converter

The KAB3403T/DN is a monolithic step-up DC/DC converter specifically

designed to drive white LEDs with a constant current from Li-ion cell.

Relative large 320mV feedback voltage & it s high accuracy help you

setting LED current with a external resistor.

KAB3403T/DN is available in a extremely low profile & small TS-6

package.

A 10 H inductor is sufficient for most application.

FEATURES

Inherently Matched LED Current.

High Efficiency : 87% (max.)

Built in a open circuits protection for the LEDs fail.

Drives Up to Five LEDs

Built in a N-channel MOSFET Switch.

Fast 1.1MHz(typ.) Switching Frequency.

Wide Dimming control range : 12%~100%.

Automatic Soft-Start

Bulit in OVD (Over voltage protection.)

Extremely low height & small Packaging.

APPLICATIONS

Celluar Phones

Smart Phones

PDAs

Digital Cameras

MP3 Players, Color Displays

DIM

MILLIMETERS

A

B

D

E

TS6

2.9 0.2

1.6+0.2/-0.1

0.70 0.05

0.4 0.1

2.8+0.2/-0.3

1.9 0.2

0.95

0.16 0.05

0.00-0.10

0.25+0.25/-0.15

C

F

G

H

I

J

K

0.60

L

0.55

K

K

B

E

H

J

J

2

3

5

16

4

+

_

+

_

+

_

+

_

+

_

Lot No.

Type Name

403

12

3

65

4

403

403

Type Name

Lot No.

TDFN-6

MILLIMETERS

C

C

E

F

I

J

G

G

H

D

D

A

A

A

B

B

DIM

0.65 Typ

1.00

0.10

2.00

0.10

1.60

0.10

+

_

+

_

0.75

0.05

+

_

0.25

0.10

+

_

0.30

0.05

+

_

+

_

0.0 + 0.05

0.20 Ref

Φ 0.25

Marking

KAB3403DN

KAB3403T