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TPS54972

ACTIVE

9-A Active Bus Termination/ DDR Memory DC/DC Converter

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Data sheet

TPS54972

ACTIVE
Data sheet Order now

Product details

Vin (min) (V) 3 Vin (max) (V) 4 Vout (min) (V) -0.3 Vout (max) (V) 7 Features Status Pin Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (mA) 11 Product type DDR DDR memory type DDR, DDR2, DDR3
Vin (min) (V) 3 Vin (max) (V) 4 Vout (min) (V) -0.3 Vout (max) (V) 7 Features Status Pin Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (mA) 11 Product type DDR DDR memory type DDR, DDR2, DDR3
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • Tracks Externally Applied Reference Voltage
  • 15-m MOSFET Switches for High Efficiency at 9-A Continuous
    Output Source or Sink Current
  • 6% to 90% VI 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
  • Tracks Externally Applied Reference Voltage
  • 15-m MOSFET Switches for High Efficiency at 9-A Continuous
    Output Source or Sink Current
  • 6% to 90% VI 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

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.

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.
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Technical documentation

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Type Title Date
* Data sheet 9-A Output, 3-V to 4-V Input Tracking/Termination Synchronous PWM Switcher datasheet (Rev. B) 25 Nov 2003
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Thermal Performance of SWIFT(TM) DC/DC Converters in the 28-Pin HTSSOP Package 04 Feb 2005
More literature XILINXPWR-082 EVM 23 Jul 2004
Application note Using Low Voltage SWIFT DC/DC Converters with Ceramic Capacitors 08 Jan 2003
EVM User's guide DC/DC Converter Evaluation Module 06 Nov 2002

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

TPS54972 PSpice Average Model

SLVM889.ZIP (70 KB) - PSpice Model
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Gerber file

Gerber File for TPS54x72EVM

SLVC052.ZIP (128 KB)
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Package Pins CAD symbols, footprints & 3D models
HTSSOP (PWP) 28 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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