TPS54972

Name: TPS54972
Brand: TI
SKU: TPS54972
Price: 3.432 USD

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DC/DC-Wandler, 9 A, für aktiven Busabschluss/DDR-Speicher

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Datenblatt

document-pdfAcrobat 9-A Output, 3-V to 4-V Input Tracking/Termination Synchronous PWM Switcher datasheet (Rev. B) (Englisch)

TPS54972

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Datenblatt

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Produktdetails

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% 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

Tracks Externally Applied Reference Voltage
15-m 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

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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Alle anzeigen 6

	Typ	Titel	Datum
*	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 und Entwicklung

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