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TPS40222 Datasheet 1.25-MHz BUCK CONVERTER

Manufacturer: Texas Instruments

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General Description

The TPS40222 is a fixed-frequency, current-mode, non-synchronous buck converter optimized for applications powered by a 5-V distributed source.

With internally determined operating frequency, soft-start time, and control loop compensation, the TPS40222 provides many

Overview

www.ti.com TPS40222 SLUS642A – OCTOBER 2005 – REVISED JANUARY 2006 1.6-A, 1.

Key Features

  • Input Voltage Range 4.5 VDC to 8 VDC.
  • Output Voltage (0.8 V to 90% VIN).
  • 0 A to 1.6 A Current Capability.
  • Fixed 1.25-MHz Switching Frequency.
  • Reference 0.8 V ±1%.
  • Internal 250 mΩ N-Channel MOSFET Switch.
  • Current Mode Control with Internal Slope Compensation.
  • Internal Soft-Start.
  • Internal Loop Compensation.
  • Short Circuit Protection.
  • Thermal Shutdown.
  • High Efficiency Up to 92%.
  • Sma.

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