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Product Overview

The LM3500TL-16EV is an evaluation board for LM3500, a synchronous step up DC to DC converter designed for white LED applications. The evaluation board is set up to drive three standard VF white LEDs from a single Li ion battery. A fourth LED pad(D4) is included for testing of up to four low VF white LEDs. The LED current is set using the resistor R2 and the equation ILED = 0.5V/R2. The evaluation board comes set up for approximately 20mA LED current. Please note that for correct operation the SHDN pin must have a voltage greater than 1.1V applied to it. The evaluation board has a maximum output voltage of 16V and is typically suited for driving 3 or 4 white LEDs in series (maximum number of series LEDs dependent on LED forward voltage).
  • Synchronous rectification, high efficiency and no external schottky diode required
  • Uses small surface mount components
  • Can drive up to 3 (or 4 low VF) white LEDs in series
  • 2.7V to 7V input range
  • True shutdown isolation
  • Input under voltage lockout
  • Output overvoltage protection, no external zener diode required
  • Requires only a small 16V ceramic capacitor at the output
  • Thermal Shutdown
  • 0.1μA shutdown current


Power Management; Portable Devices; LED Lighting; Imaging, Video & Vision
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Product Information

  • Core Chip LM3500
  • Device Topology Buck (Step Down)
  • No. of Outputs 1Outputs
  • Output Current 20mA
  • Output Voltage 16V
  • Input Voltage Min 2.7V
  • Input Voltage Max 7V
  • Dimming Control Type -
  • Kit Contents Board
  • Product Range -
  • Input Voltage 2.7V to 7V
  • SVHC No SVHC (15-Jun-2015)
  • Topology Buck (Step Down)

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