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L5101 Datasheet White Led Step-up Converter

Manufacturer: Unisonic Technologies

Overview: UNISONIC TECHNOLOGIES CO., LTD L5101 WHITE LED STEP-UP CONVERTER.

General Description

The UTC L5101 is a fixed frequency step-up PWM DC/DC converter and designed for white LEDS driving with a constant current to provide backlight in handheld devices.

The device switches at a high frequency 1.2MHz by an internal N-channel MOSFET switch to be capable of minimum external ponents using.

The UTC L5101 can drive up to 5 LEDs in series by a Li-Ion cell.

Key Features

  • Built-In Open Circuit Protection.
  • Built-In Over Voltage Protection.
  • High Efficiency(Up to 84% at VIN=4.2V, 3 LEDs, ILED =20mA) www. DataSheet4U. com.
  • 1.2MHz fixed switching frequency.
  • Low supply current: 70µA.
  • Matches LED current.
  • Requires tiny inductor and capacitors.

L5101 Distributor