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LM5117 - Wide Input Range Synchronous Buck Controller

General Description

The LM5117 is a 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 utilizing an emulated current ramp.

Key Features

  • 1 LM5117-Q1 is Qualified for Automotive.

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Full PDF Text Transcription for LM5117 (Reference)

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM5117, LM5117-Q1 SNVS698F – APRIL 2011 – REVISED AUGUST 2015 LM5117/Q1 Wide Input Ra...

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Q1 SNVS698F – APRIL 2011 – REVISED AUGUST 2015 LM5117/Q1 Wide Input Range Synchronous Buck Controller with Analog Current Monitor 1 Features •1 LM5117-Q1 is Qualified for Automotive Applications • AEC-Q100 Qualified With the Following Results: – Device Temperature Grade 1: -40°C to 125°C Ambient Operating Temperature Range • Emulated Peak Current Mode Control • Wide Operating Range from 5.5 V to 65 V • Robust 3.3-A Peak Gate Drives • Adaptive Dead-Time Output Driver Control • Free-Run or Synchronizable Clock up to 750 kHz • Optional Diode Emulation Mode • Programmable Output from 0.8 V • Precision 1.

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