TPS54872PWPR datasheet(1/17 Pages) TI

tên linh kiện	TPS54872PWPR

Giải thích chi tiết về linh kiện	8-A OUTPUT 4-V TO 6-V INPUT TRACKING /TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETS

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TPS54872

SLVS436C − JULY 2002 − REVISED FEBRUARY 2005

8A OUTPUT, 4V TO 6V INPUT TRACKING/TERMINATION

SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETs (SWIFT)

6,4 mm x 9,7 mm

FEATURES

D Tracks Externally Applied Reference Voltage

D 30-mΩ MOSFET Switches for High Efficiency

at 8-A Continuous Output Source or Sink

Current

D 6% to 90% VI Output Tracking Range

D Wide PWM Frequency:

Fixed 350 kHz or Adjustable 280 kHz to

700 kHz

D Load Protected by Peak Current Limit and

Thermal Shutdown

D Integrated Solution Reduces Board Area and

Total Cost

APPLICATIONS

D DDR Memory Termination Voltage

D Active Termination of GTL and SSTL

High-Speed Logic Families

D DAC Controlled High Current Output Stage

D Precision Point of Load Power Supply

DESCRIPTION

As a member of the SWIFT

 family of dc/dc regulators,

the TPS54872 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 3.8 V; an internally set

slow-start circuit to limit in-rush currents; and a status

output to indicate valid operating conditions.

The TPS54872 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.

SIMPLIFIED SCHEMATIC

VIN

PH

BOOT

PGND

VSENSE

V(TTQ)

AGND

VBIAS

Input

TPS54872

COMP

Compensation

Network

REFIN

t − Time − 100 ms/div

TRANSIENT RESPONSE

VI = 5 V,

VO = 1.25 V

2 A to 6 A

V(DDQ)

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

PowerPAD and SWIFT are trademarks of Texas Instruments.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

semiconductor products and disclaimers thereto appears at the end of this data sheet.

www.ti.com

Copyright

 2002 − 2005, Texas Instruments Incorporated

Số phần tương tự - TPS54872PWPR

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Texas Instruments	TPS54872PWPR	688Kb / 22P	8-A OUTPUT, 4-V TO 6-V INPUT TRACKING/TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETs
Texas Instruments	TPS54872PWPRG4	688Kb / 22P	8-A OUTPUT, 4-V TO 6-V INPUT TRACKING/TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETs

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Mô tả tương tự - TPS54872PWPR

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Texas Instruments	TPS54810	214Kb / 15P	4-V TO 6-V INPUT, 8-A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETS
	TPS54972	362Kb / 16P	9-A OUTPUT, 3-V TO 4-V INPUT TRACKING/TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETS
	TPS54880	461Kb / 19P	4-V TO 6-V INPUT, 8-A OUTPUT TRACKING SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT) FOR SEQUENCING
	TPS54880	759Kb / 23P	4-V TO 6-V INPUT, 8-A OUTPUT TRACKING SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT?? FOR SEQUENCING
	TPS54680	816Kb / 25P	3-V TO 6-V INPUT, 6-A OUTPUT TRACKING SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs
	TPS54680-EP	1Mb / 25P	3-V TO 6-V INPUT, 6-A OUTPUT TRACKING SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs
	TPS54810	734Kb / 22P	4-V TO 6-V INPUT, 8-A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETS
	TPS54872	688Kb / 22P	8-A OUTPUT, 4-V TO 6-V INPUT TRACKING/TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETs
	TPS54880	769Kb / 23P	4-V TO 6-V INPUT, 8-A OUTPUT TRACKING SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs
	TPS54972	578Kb / 19P	9-A OUTPUT, 3-V TO 4-V INPUT TRACKING/TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETs

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