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LTM8058 - Tiny DC/DC ISOLATED flyback Converter [News]
posted September 8 2014 5:12.00 by Giorgos Lazaridis




Linear Technology released the LTM8058, a 2kV AC isolated flyback micromodule DC/DC converter with LDO post regulator. This new chip can be used to generate isolated DC voltage within a small footprint. The chip hosts the switching controller, power switches, transformer, LDO, and all the support components. It can operate over a wide voltage range of 3.1V to 31V, and supports an output voltage range of 2.5V to 13V, set by a single resistor. There is also a linear post regulator whose output voltage is adjustable from 1.2V to 12V as set by a single resistor. Only output and input capacitors are needed to finish the design. Other components may be used to control the soft-start control and biasing.


Features
  • 2kV AC Isolated micromodule Converter (Tested to 3kVDC)
  • UL60950 Recognized File E464570
  • Wide Input Voltage Range: 3.1V to 31V
  • VOUT1 Output:
    • Up to 440mA (VIN = 24V, VOUT1 = 2.5V)
      2.3V to 13V Output Range
  • VOUT2 Low Noise Linear Post Regulator:
    • Up to 300mA
      1.2V to 12V Output Range
  • Current Mode Control
  • Programmable Soft-Start
  • User Configurable Undervoltage Lockout
  • Low Profile (9mm x 11.25mm x 4.92mm) BGA Package


  • Follow this link to download the datasheet for the LTM8058

    Design Note 530: Increasing Output Voltage and Current Range Using Series - Connected Isolated micrmodule Converters [Download Link]

    [Link: Linear Technology]
     
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