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LP3307 - Constant Current Switching Regulator

General Description

The LP3307 is a high frequency, asynchronous boost converter for constant current white LED driver applications.

The internal MOSFET can support up to 8 White LEDs for backlighting and OLED power application,and the internal soft start function can reduce the inrush current.

Key Features

  • High Efficiency: 93%.
  • 1.1MHz Fixed-Frequency PWM Operation.
  • Maximum Output Voltage up to 29V.
  • Operating Range : 2.2V to 6V.
  • Shutdown Supply Current:.

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Datasheet Details

Part number LP3307
Manufacturer Lowpowersemi
File Size 675.47 KB
Description Constant Current Switching Regulator
Datasheet download datasheet LP3307 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Preliminary Datasheet LP3307 High Performance, Constant Current Switching Regulator For White LED General Description The LP3307 is a high frequency, asynchronous boost converter for constant current white LED driver applications. The internal MOSFET can support up to 8 White LEDs for backlighting and OLED power application,and the internal soft start function can reduce the inrush current. The LED current is initially set with the external sense resistor. To improve efficiency, the feedback voltage is set to 250mV, which reduces the power dissipation in the current setting resistor. The LP3307 implements a constant frequency 1MHz PWM control scheme. Optimized operation frequency can meet the requirement of small LC filters value .