ACT6311 查看數據表（PDF） - Active-Semi, Inc

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ACT6311

White LED/OLED Step-Up Converter

Active-Semi, Inc 

FEATURES

• Adjustable Output Voltage

• Drives OLEDs or White LEDs

• 30V High Voltage Switch

• 1MHz Switching Frequency

• Tiny Inductors and Capacitors

• Tiny SOT23-5 Package

APPLICATIONS

• OLED Applications

• Cell Phones

• Digital Cameras

• PDAs, Laptops

• MP3 Players

• GPS

ACT6311

Rev 4, 15-Nov-12

White LED/OLED Step-Up Converter

GENERAL DESCRIPTION

The ACT6311 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 ACT6311 incorporates a 30V high voltage

switch. The device operates at 1MHz and allows the

use of few external components. The ACT6311 is

available in the tiny SOT23-5 package.

Efficiency vs. Output Current

100

80

60

VIN = 3.6V

VIN = 3V

VIN = 3.6V

VIN = 3V

40

20

0

0

5

10

15

20

25

30

35

Output Current (mA)

Figure 1. Typical Application Circuit

Innovative PowerTM

-1-

www.active-semi.com

Copyright © 2012 Active-Semi, Inc.

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