6,6 mm X 9,8 mm
SGLS293A – FEBRUARY 2005 – REVISED AUGUST 2005
3-V TO 6-V INPUT, 6-A OUTPUT SYNCHRONOUS BUCK PWM
SWITCHER WITH INTEGRATED FETs (SWIFT™)
• Controlled Baseline
– One Assembly/Test Site, One Fabrication
• Extended Temperature Performance of –55°C
• Enhanced Diminishing Manufacturing
Sources (DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree (1)
• 30-mΩ, 12-A Peak MOSFET Switches for High
Efficiency at 6-A Continuous Output Source
• 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
• 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
• Integrated Solution Reduces Board Area and
(1) Component qualification in accordance with JEDEC and
industry standards to ensure reliable operation over an
extended temperature range. This includes, but is not limited
to, Highly Accelerated Stress Test (HAST) or biased 85/85,
temperature cycle, autoclave or unbiased HAST,
electromigration, bond intermetallic life, and mold compound
life. Such qualification testing should not be viewed as
justifying use of this component beyond specified
performance and environmental limits.
• 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
• Broadband, Networking and Optical
• Portable Computing/Notebook PCs
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.
These devices have limited built-in ESD protection. The leads should be shorted together or the device
placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
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.
SWIFT, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005, Texas Instruments Incorporated