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LM3500 - Synchronous Step-up DC/DC Converter

Description

The LM3500 is a fixed-frequency step-up DC/DC converter that is ideal for driving white LEDs for display backlighting and other lighting functions.

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.
  • Internal Output Over-Voltage Protection (OVP) Circuitry, with no External Zener Diode Required.
  • LM3500-16: 15.5V OVP; LM3500-21: 20.5V OVP.
  • True Shutdown Isolation.
  • Input Undervoltage Lockout.

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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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LM3500 www.ti.com SNVS231G – AUGUST 2003 – REVISED MAY 2013 LM3500 Synchronous Step-up DC/DC Converter for White LED Applications Check for Samples: LM3500 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 • Internal Output Over-Voltage Protection (OVP) Circuitry, with no External Zener Diode Required – LM3500-16: 15.5V OVP; LM3500-21: 20.5V OVP. • True Shutdown Isolation • Input Undervoltage Lockout • Requires Only Small Ceramic Capacitors at the Input and Output • Thermal Shutdown • 0.
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