PT4101 Datasheet (Powtech) - White LED Step-Up Converter

PT4101, White LED Step-Up Converter

The PT4101 is a step-up DC/DC converter designed for driving up to 5 white LEDs in series from a single cell Lithium Ion battery with constant current.

Because it directly regulates output current, the PT4101 is ideal for driving light emitting diodes (LEDs) whose light intensity is proportional to

PT4101 Features

* z z z z z z z Drives Up to 5 Series White LEDs from 3V Up to 87% Efficiency 1.25MHz Fixed Switching Frequency Low 104mV Feedback Voltage Open Load Shutdown PWM Dimming SOT23-6 Packages APPLICATIONS z z z z Cell Phones Handheld Computers and PDAs Digital Cameras Small LCD Displays ORDERING INFORMAT