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LM3500 Datasheet Synchronous Step-up DC/dc Converter

Manufacturer: Texas Instruments

Overview: LM3500 www.ti.com SNVS231G – AUGUST 2003 – REVISED MAY 2013 LM3500 Synchronous Step-up DC/DC Converter for White LED Applications Check for Samples:.

General 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.

With fully intergrated synchronous switching (no external schottky diode required) and a low feedback voltage (500mV), power efficiency of the LM3500 circuit has been optimized for lighting applications in wireless phones and other portable products (single cell Li-Ion or 3-cell NiMH battery supplies).

The LM3500 operates with a fixed 1MHz switching frequency.

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.
  • 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.

More Datasheets from Texas Instruments

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LM3500 Distributor