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STLD40D - White led power supply

Description

STLD40D is a boost converter that operates from 3.0 V to 5.5 V.

Features

  • Inductor switches boost controller.
  • PFM mode control.
  • High efficiency over wide range of input voltage from 3.0 V to 5.5 V.
  • Over voltage protection with automatic restart.
  • Adjustable peak current limit.
  • Enable pin with possibility of PWM dimming control.
  • Low shutdown current < 1 µA.
  • Small external component.
  • Good load and line regulation.
  • QFN8 3 x 3 mm.

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Full PDF Text Transcription

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STLD40D White LED power supply for large display backlight Features ■ Inductor switches boost controller ■ PFM mode control ■ High efficiency over wide range of input voltage from 3.0 V to 5.5 V ■ Over voltage protection with automatic restart ■ Adjustable peak current limit ■ Enable pin with possibility of PWM dimming control ■ Low shutdown current < 1 µA ■ Small external component ■ Good load and line regulation ■ QFN8 3 x 3 mm Applications ■ White LED supply for LCD backlight ■ Mobile phone ■ PDA and organizers ■ Any handsets powered form 3.0 V to 5.5 V QFN8 (3 x 3 mm) resistor RLED. The device can be turned ON/OFF through the logic enable signal pin EN. By applying a low frequency PWM signal the LEDs can be dimmed.
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