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TPS54972 Datasheet(PDF) 1 Page - Texas Instruments

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Part # TPS54972
Description  9-A OUTPUT, 3-V TO 4-V INPUT TRACKING/TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS54972 Datasheet(HTML) 1 Page - Texas Instruments

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6,4 mm x 9,7 mm
www.ti.com
VIN
PH
BOOT
PGND
VSENSE
V(TTQ)
AGND
VBIAS
Input
TPS54972
COMP
Compensation
Network
REFIN
TRANSIENT RESPONSE
V(DDQ)
VI = 3.3 V
VO = 1.25 V
2.25 A to 6.75 A
t – Time –
µs/div
TPS54972
SLVS437A — AUGUST 2002 – REVISED DECEMBER 2002
9-A OUTPUT, 3-V TO 4-V INPUT TRACKING/TERMINATION
SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETS (SWIFT™)
FEATURES
DESCRIPTION
Tracks Externally Applied Reference Voltage
As a member of the SWIFT™ family of dc/dc regulators,
the TPS54972 low-input voltage high-output current
15-mΩ MOSFET Switches for High Efficiency at
synchronous-buck
PWM
converter
integrates
all
9-A Continuous Output Source or Sink Current
required active components. Included on the substrate
6% to 90% VI Output Tracking Range
with the listed features are a true, high performance,
Wide PWM Frequency: Fixed 350 kHz or
voltage
error
amplifier
that
enables
maximum
Adjustable 280 kHz to 700 kHz
performance under transient conditions and flexibility in
Load Protected by Peak Current Limit and
choosing the output filter L and C components; an
Thermal Shutdown
under-voltage-lockout circuit to prevent start-up until the
Integrated Solution Reduces Board Area and
input voltage reaches 3.0 V; an internally set slow-start
Total Cost
circuit to limit in-rush currents; and a status output to
indicate valid operating conditions.
APPLICATIONS
The TPS54972 is available in a thermally enhanced
28-pin TSSOP (PWP) PowerPAD™ package, which
DDR Memory Termination Voltage
eliminates bulky heatsinks. TI provides evaluation
Active Termination of GTL and SSTL
modules and the SWIFT designer software tool to aid in
High-Speed Logic Families
quickly achieving high-performance power supply
DAC Controlled High Current Output Stage
designs to meet aggressive equipment development
Precision Point of Load Power Supply
cycles.
SIMPLIFIED SCHEMATIC
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.
PRODUCTION DATA information is current as of publication date. Products
Copyright © 2002, Texas Instruments Incorporated
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.


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