Description
1 VS4101 White LED Step-Up Converter General .
The VS4101 is a step-up DC/DC converter designed for driving up to 8 white LEDs in series from a single cell Lithium Ion battery with constant current.
Features
* Driver Up to 5 series White LEDs from 2.5V
* Driver Up to 8 series White LEDs from 3.6V
* Up to 87% Efficiency
* Over 1.2MHz Fixed Switching Frequency
* Low 104mV Feedback Voltage
* Open Load Shutdown
* Soft-Start/PWM Dimming
* Internal Current Limit
* SOT23-6 a
Applications
* Cellular Phones
* Digital Cameras
* LCD modules
* PDAs, Handheld Computers
Typical Application
Figure 1. Li-Ion Driver for Six White LEDs
Gure 2. Efficiency vs Number of LEDs
Free Datasheet http://www. datasheet4u. com/
2
VS4101
White LED Step-Up Converter
Ordering Information
