DDR Termination Regulator 9A 3V to 4V 28-Pin HTSSOP Tube

As a member of the SWIFT family of dc/dc regulators, the TPS54972 low-input voltage high-output current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter L and C components; an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 3.0 V; an internally set slow-start circuit to limit in-rush currents; and a status output to indicate valid operating conditions.The TPS54972 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

Tracks Externally Applied Reference Voltage

15-mO MOSFET Switches for High Efficiency at 9-A Continuous
Output Source or Sink Current

6% to 90% V_I Output Tracking Range

Wide PWM Frequency: Fixed 350 kHz or Adjustable 280 kHz to 700 kHz

Load Protected by Peak Current Limit and Thermal Shutdown

Integrated Solution Reduces Board Area and Total Cost

APPLICATIONS

• DDR Memory Termination Voltage
• Active Termination of GTL and SSTL High-Speed Logic Families
• DAC Controlled High Current Output Stage
• Precision Point of Load Power Supply