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EL7583IR-EVAL

Obsolete

3-Channel DC/DC Converter Evaluation Board

Overview

The EL7583 is a 3-channel DC/DC converter IC that is designed primarily for use in TFT-LCD applications. It features a PWM boost converter with 2.7V to 14V input capability and 5V to 17V output, which powers the column drivers and provides up to 470mA at 12V, 370mA at 15V from a 5V supply. A pair of charge pump control circuits provides regulated outputs of VON and VOFF supplies at 8V to 40V and -5V to -40V, respectively, each at up to 60mA.

  • TFT-LCD display supply
    • Boost regulator
    • VON charge pump
    • VOFF charge pump
  • 2.7V to 14V VIN supply
  • 5V <VBOOST <17V
  • 5V <VON <40V
  • -40V <VOFF <0V
  • VBOOST = 12V at 470mA
  • VBOOST = 15V at 370mA
  • High frequency, small inductor DC/DC boost circuit
  • Over 90% efficient DC/DC boost converter capability
  • Adjustable frequency
  • Adjustable soft-start
  • Adjustable outputs
  • Small parts count
  • Pb-free plus anneal available (RoHS compliant)

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