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LM3501 - Synchronous Step-up DC/DC Converter

General Description

The LM3501 is a fixed-frequency step-up DC/DC converter that is ideal for driving white LEDs for display backlighting and other lighting functions.

Key Features

  • 1.
  • 2 Synchronous Rectification, High Efficiency and no External Schottky Diode required.
  • Uses Small Surface Mount Components.
  • Can Drive 2-5 White LEDs in Series (May Function with More Low VF LEDs).
  • 2.7V to 7V Input Range.
  • True Shutdown Isolation, no LED Leakage Current.
  • DC Voltage LED Current Control.
  • Input Undervoltage Lockout.
  • Internal Output Over-Voltage Protection (OVP) Circuitry, with no External Zener Diode Required LM.

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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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LM3501 www.ti.com SNVS230C – DECEMBER 2003 – REVISED MAY 2013 LM3501 Synchronous Step-up DC/DC Converter for White LED Applications Check for Samples: LM3501 FEATURES 1 •2 Synchronous Rectification, High Efficiency and no External Schottky Diode required • Uses Small Surface Mount Components • Can Drive 2-5 White LEDs in Series (May Function with More Low VF LEDs) • 2.7V to 7V Input Range • True Shutdown Isolation, no LED Leakage Current • DC Voltage LED Current Control • Input Undervoltage Lockout • Internal Output Over-Voltage Protection (OVP) Circuitry, with no External Zener Diode Required LM3501-16: 15.5V OVP; LM3501-21: 20.5V OVP. • Requires Only a Small 16V (LM3501-16) or 25V (LM3501-21) Ceramic Capacitor at the Input and Output • Thermal Shutdown • 0.