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34712 - DDR Switch-Mode Power Supply

Description

of each pin can be found in the Functional Pin Description section beginning on page 10.

Features

  • 45 mΩ Integrated N-Channel Power MOSFETs.
  • Input Voltage Operating Range from 3.0 V to 6.0 V.
  • ±1 % Accurate Output Voltage, Ranging from 0.7 V to 1.35 V.
  • ±1 % Accurate Buffered Reference Output Voltage.
  • Programmable Switching Frequency Range from 200 kHz to 1.0 MHz with a default of 1.0 MHz.
  • Over Current Limit and Short Circuit Protection.
  • Thermal Shutdown www. DataSheet4U. com.
  • Output Overvoltage and Undervoltage Detection.

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Full PDF Text Transcription

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Freescale Semiconductor Advance Information Document number: MC34712 Rev. 4.0, 5/2007 3.0 A 1.0 MHz Fully Integrated DDR Switch-Mode Power Supply The 34712 is a highly integrated, space efficient, low cost, single synchronous buck switching regulator with integrated N-channel power MOSFETs. It is a high performance point-of-load (PoL) power supply with the ability to track an external reference voltage. Its high efficient 3.0 A sink and source capability combined with its voltage tracking/sequencing ability and tight output regulation, makes it ideal to provide the termination voltage (VTT) for modern data buses such as Double-Data-Rate (DDR) memory buses.
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