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LP3322 - Constant Current Switching Regulator

Key Features

  • The LP3322 is a 1.1MHz PWM boost switching regulator designed for constant- current white LED driver.

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Datasheet Details

Part number LP3322
Manufacturer Lowpowersemi
File Size 506.14 KB
Description Constant Current Switching Regulator
Datasheet download datasheet LP3322 Datasheet

Full PDF Text Transcription for LP3322 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for LP3322. For precise diagrams, and layout, please refer to the original PDF.

Preliminary Datasheet LP3322 High Performance, Constant Current Switching Regulator For 10PCS White LED In Series General Description Features The LP3322 is a 1.1MHz PWM ...

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LED In Series General Description Features The LP3322 is a 1.1MHz PWM boost switching regulator designed for constant- current white LED driver applications. The LP3322 can drive a string of up to 10 white LEDs in series or 3s9p LEDs from 3.6V, ensuring uniform brightness and eliminating several ballast resistors. The LP3322 implements a constant frequency 1.1MHz 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 200mV and 300mV, which reduces the power dissipation in the current setting resistor.

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