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TPS5405 - NON-SYNCHRONOUS STEP-DOWN REGULATOR

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General Description

The TPS5405 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 6.5 V to 28 V.

Current mode control with internal slope compensation is implemented to reduce component count.

TPS5405 also

Overview

TPS5405 www.ti.com SLVSBF7B – MAY 2012 – REVISED APRIL 2013 6.

Key Features

  • 1.
  • Fixed 5-V Output.
  • 6.5-V to 28-V Wide Input Voltage Range.
  • Up to 2-A Maximum Continuous Output Loading Current.
  • Pulse Skipping Mode to Achieve High Light Load Efficiency.
  • Over 80% Efficiency at 10-mA Loading.
  • Adjustable 50-kHz to 1.1-MHz Switching Frequency Set by an External Resistor (Leave pin ROSC floating. Set frequency to 120 kHz).
  • Peak Current-Mode Control.
  • Cycle-by-Cycle Over Current Protection.
  • Switching N.

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