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TPS5405 - NON-SYNCHRONOUS STEP-DOWN REGULATOR

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.

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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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.

View original datasheet text
TPS5405 www.ti.com SLVSBF7B – MAY 2012 – REVISED APRIL 2013 6.5-V TO 28-V INPUT VOLTAGE, 5-V FIXED OUTPUT, 2-A OUTPUT CURRENT, NON-SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET Check for Samples: TPS5405 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.