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TPS51217 - Single Synchronous Step-Down Controller

General Description

The TPS51217 is a small-sized single buck controller with adaptive on-time D-CAP™ mode.

The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supply in digital consumer products.

Key Features

  • 1.
  • 2 Wide Input Voltage Range: 3 V to 28 V.
  • Output Voltage Range: 0.6 V to 2.6 V.
  • Wide Output Load Range: 0 to 20A+.
  • Built-in 0.5% 0.6 V Reference.
  • D-CAP™ Mode with 100-ns Load Step Response.
  • Adaptive On Time Control Architecture with Fixed 340kHz Operation.
  • Dynamic Output Voltage Change Capability.
  • 4700 ppm/°C RDS(on) Current Sensing.
  • Internal 0.9-ms Voltage Servo Softstart.
  • Pre-Charged Start-up Capability.

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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
www.ti.com TPS51217 SLUS947B – JUNE 2009 – REVISED APRIL 2012 HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY Check for Samples: TPS51217 FEATURES 1 •2 Wide Input Voltage Range: 3 V to 28 V • Output Voltage Range: 0.6 V to 2.6 V • Wide Output Load Range: 0 to 20A+ • Built-in 0.5% 0.6 V Reference • D-CAP™ Mode with 100-ns Load Step Response • Adaptive On Time Control Architecture with Fixed 340kHz Operation • Dynamic Output Voltage Change Capability • 4700 ppm/°C RDS(on) Current Sensing • Internal 0.