WHITE LED/OLED STEP-UP CONVERTER

FSP3304

2007-4-24

1/9

PIN CONFIGURATION

(Top View)

TYPICAL APPLICATION CIRCUIT

(1) Application as OLED driver

(2) Application as White LED driver

Symbol

Name

Descriptions

1

SW

Switch Output. Connect this pin to the inductor and the Schottky diode. To

reduce EMI, minimize the PCB trace path between this pin and the input bypass

capacitor.

2

G

Ground.

3

FB

Feedback Input. This pin is referenced to 1.24V.

4

SHDN

Shutdown Control. Connect to a logic high to enable the device. Connect to a

logic low to disable the device. Never leave the pin unconnected.

5

IN

Supply Input. Bypass to G with a capacitor of 1 µF or higher.

FEATURES

Adjustable Output Voltage

Drives OLEDs or White LEDs

30V High Voltage Switch

1 MHz Switching Frequency

Tiny Inductors and Capacitors

Tiny SOT23-5L Package

GENERAL DESCRIPTION

The FSP3304 step-up DC/DC converter is optimized

for driving OLEDs or white LEDs. It can provide an

output voltage up to 24V. The device is capable of

driving up to seven LEDs in series from a Lithium-Ion

battery, with inherent current matching and uniform

brightness.

The FSP3304 incorporates a 30V high voltage switch.

The device operates at 1 MHz and allows the use of

few external components. The FSP3304 is available

in the tiny SOT23-5L package.

APPLICATIONS

OLED Applications

Cell Phones

Digital Cameras

PDAs, Laptops

MP3 Players

GPS