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LM5119 - Wide Input Range Dual Synchronous Buck Controller

Description

The LM5119 device is a dual synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply.

The control method is based upon current mode control using an emulated current ramp.

Features

  • 1 Emulated Peak Current Mode Control.
  • Wide Operating Range (5.5 V to 65 V).
  • Easily Configurable for Dual Outputs or Interleaved Single Output.
  • Robust 3.3-A Peak Gate Drive.
  • Switching Frequency Programmable to 750 kHz.
  • Optional Diode Emulation Mode.
  • Programmable Output from 0.8 V.
  • Precision 1.5% Voltage Reference.
  • Programmable Current Limit.
  • Hiccup Mode Overload Protection.
  • Programmable Soft-Start.

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Full PDF Text Transcription

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Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design LM5119 SNVS676I – AUGUST 2010 – REVISED APRIL 2018 LM5119 Wide Input Range Dual Synchronous Buck Controller 1 Features •1 Emulated Peak Current Mode Control • Wide Operating Range (5.5 V to 65 V) • Easily Configurable for Dual Outputs or Interleaved Single Output • Robust 3.3-A Peak Gate Drive • Switching Frequency Programmable to 750 kHz • Optional Diode Emulation Mode • Programmable Output from 0.8 V • Precision 1.
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