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TPS51916 - Synchronous Buck Controller

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General Description

The TPS51916 device provides a complete power supply for DDR2, DDR3, DDR3L, and DDR4 memory systems in the lowest total cost and minimum space.

It integrates a synchronous buck regulator controller (VDDQ) with a 2-A sink and 2-A source tracking LDO (VTT) and buffered low noise reference (VTTREF).

The device employs D-CAP™ mode coupled with 300 kHz or 400 kHz frequencies for ease-of-use and fast transient response or D-CAP2™ mode coupled with higher 500 kHz or 670 kHz frequencies to support ceramic output capacitor without an external compensation circuit.

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design TPS51916 SLUSAE1F – DECEMBER 2010 – REVISED DECEMBER 2018 TPS51916 Complete DDR2, DDR3, DDR3L and DDR4 Memory Power.

Key Features

  • 1 Synchronous Buck Controller (VDDQ).
  • Conversion Voltage Range: 3 V to 28 V.
  • Output Voltage Range: 0.7 V to 1.8 V.
  • 0.8% VREF Accuracy.
  • Selectable Control Architecture.
  • D-CAP™ Mode for Fast Transient Response.
  • D-CAP2™ Mode for Ceramic Output Capacitors.
  • Selectable 300 kHz, 400 kHz, 500 kHz, or 670 kHz Switching Frequencies.
  • Optimized Efficiency at Light and Heavy Loads with Auto-skip Function.
  • Supports Soft-.

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