SEMICONDUCTOR
KAB3403T/DN
BICD LINEAR INTEGRATED CIRCUIT
TECHNICAL DATA
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.
E
K
1
B
K
6
DIM MILLIMETERS
_
A
B
C
D
E
2.9+0.2
KAB3403T/DN is available in a extremely low profile & small TS-6
package.
1.6+0.2/-0.1
_
0.70+0.05
2
5
_
+
0.4 0.1
A 10 H inductor is sufficient for most application.
2.8+0.2/-0.3
3
4
_
F
G
H
I
1.9+0.2
0.95
FEATURES
_
0.16+0.05
0.00-0.10
0.25+0.25/-0.15
0.60
Inherently Matched LED Current.
High Efficiency : 87% (max.)
J
K
L
0.55
Built in a open circuits protection for the LEDs fail.
Drives Up to Five LEDs
I
H
J
J
Built in a N-channel MOSFET Switch.
Fast 1.1MHz(typ.) Switching Frequency.
Wide Dimming control range : 12%~100%.
Automatic Soft-Start
TS6
Bulit in OVD (Over voltage protection.)
Extremely low height & small Packaging.
APPLICATIONS
Celluar Phones
A
B
Smart Phones
PDAs
A
Digital Cameras
MP3 Players, Color Displays
G
D
C
DIM MILLIMETERS
_
A
B
C
D
E
F
+
2.00 0.10
_
1.60
0.30
+
0.10
0.05
_
+
0.65 Typ
_
+
_
+
1.00
0.10
0.25
0.10
Φ 0.25
G
H
I
Marking
_
0.75 0.05
+
0.0 + 0.05
0.20 Ref
6
1
5
4
3
Lot No.
J
Type Name
Lot No.
Type Name
40033
403
TDFN-6
2
KAB3403DN
KAB3403T
2007. 2. 26
Revision No : 0
1/7
KEC [ KEC(KOREA ELECTRONICS) ]
