LP3382S Datasheet PDF (Constant Current Switching Regulator)

LP3382S - Constant Current Switching Regulator

Description

The LP3382S is a 1.2MHz PWM boost switching regulator designed for constant- current white LED driver applications.

The LP3382S can drive a string of up to 8 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors.

Features

High Efficiency: 92% 　 1.2MHzFixed-Frequency PWM Operation Maximum Output Voltage up to 29V Operating Range : 2.7V to 5.5V Shutdown Supply Current:.

Datasheet Details

Part number	LP3382S
Manufacturer	Lowpowersemi
File Size	544.82 KB
Description	Constant Current Switching Regulator
Datasheet	LP3382S Datasheet

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Full PDF Text Transcription

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Preliminary Datasheet LP3382S High Performance, Constant Current Switching Regulator For 8PCS White LED In Series General Description The LP3382S is a 1.2MHz PWM boost switching regulator designed for constant- current white LED driver applications. The LP3382S can drive a string of up to 8 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The LP3382S implements a constant frequency 1.2MHz PWM control scheme. The high frequency PWM operation also saves board space by reducing external component sizes. To improve efficiency, the feedback voltage is set to 250 mV, which reduces the power dissipation in the current setting resistor. Highly integration and internal compensation network minimizes as 5 external component counts.

Published: Jan 30, 2016 |