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TPS54140A - 42-V Step-Down DC/DC Converter

Description

The TPS54140A device is a 42-V, 1.5-A, step-down regulator with an integrated high-side MOSFET.

Current-mode control provides simple external compensation and flexible component selection.

A low ripple-pulse skip mode reduces the no-load, regulated output supply current to 116 μA.

Features

  • 1 3.5-V to 42-V Input Voltage Range.
  • 200-mΩ High-Side MOSFET.
  • High Efficiency at Light Loads with a Pulse Skipping Eco-mode™.
  • Tighter Enable Threshold than TPS54140 for More Accurate UVLO Voltage.
  • Adjustable UVLO Voltage and Hysteresis.
  • 116-μA Operating Quiescent Current.
  • 1.3-μA Shutdown Current.
  • 100-kHz to 2.5-MHz Switching Frequency.
  • Synchronizes to External Clock.
  • Adjustable Slow Start/Sequencing.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design TPS54140A SLVSB55C – MAY 2012 – REVISED OCTOBER 2015 TPS54140A 1.5-A, 42-V Step-Down DC/DC Converter with Eco-mode™ 1 Features •1 3.5-V to 42-V Input Voltage Range • 200-mΩ High-Side MOSFET • High Efficiency at Light Loads with a Pulse Skipping Eco-mode™ • Tighter Enable Threshold than TPS54140 for More Accurate UVLO Voltage • Adjustable UVLO Voltage and Hysteresis • 116-μA Operating Quiescent Current • 1.3-μA Shutdown Current • 100-kHz to 2.5-MHz Switching Frequency • Synchronizes to External Clock • Adjustable Slow Start/Sequencing • UV and OV Power Good Output • 0.
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