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FEATURES
· Controlled Baseline
– One Assembly/Test Site, One Fabrication
Site
· Extended Temperature Performance of –55°C
to 125°C
· Enhanced Diminishing Manufacturing
Sources (DMS) Support
· Enhanced Product-Change Notification
· Qualification Pedigree (1)
· 30-mW, 12-A Peak MOSFET Switches for High
Efficiency at 6-A Continuous Output Source
and Sink
· 0.9-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V
Fixed Output Voltage Devices With 1% Initial
Accuracy
· Internally Compensated for Easy Use and
Minimal Component Count
· Fast Transient Response
· Wide PWM Frequency - Fixed 350 kHz,
550 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
· Low-Voltage, High-Density Systems With
Power Distributed at 5 V or 3.3 V
· Point of Load Regulation for High
Performance DSPs, FPGAs, ASICs and
Microprocessors
· Broadband, Networking and Optical
Communications Infrastructure
· Portable Computing/Notebook PCs
DESCRIPTION
The SWIFT™ family of dc/dc regulators, the
TPS54611, TPS54612, TPS54613, TPS54614,
TPS54615, and TPS54616 low-input voltage
high-output current synchronous-buck PWM
converters integrate all required active components.
Included on the substrate are true, high-performance, voltage error amplifiers that provide high performance
under transient conditions; an under-voltage lockout
circuit to prevent start-up until the input voltage
reaches 3 V; an internally and externally set
slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault
signaling, and supply sequencing.
The TPS54611-6 devices are available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™
package, which eliminates bulky heatsinks. Texas
Instruments 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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