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Typical Size 6,6 mm X 9,8 mm
TPS54611-EP, TPS54612-EP TPS54613-EP, TPS54614-EP TPS54615-EP, TPS54616-EP
SGLS293A – FEBRUARY 2005 – REVISED AUGUST 2005
3-V TO 6-V INPUT, 6-A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT™)
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-mΩ, 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
(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.
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.
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
TPS54611-EP, TPS54612-EP TPS54613-EP, TPS54614-EP TPS54615-EP, TPS54616-EP
SGLS293A – FEBRUARY 2005 – REVISED AUGUST 2005
Input
SIMPLIFIED SCHEMATIC
VIN PH TPS54614 BOOT PGND
VBIAS VSENSE AGND
Output
AGND VSENSE
NC PWRGD
BOOT PH PH PH PH PH PH PH PH PH
PWP PACKAGE (TOP VIEW)
1 28 2 27 3 26 4 25 5 24 6 23 7 THERMAL 22 8 PAD 21 9 20 10 19 11 18 12 17 13 16 14 15
Efficiency − %
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100 95 90 85 80 75 70 65 60 55 50 0
EFFICIENCY AT 350 kHz
123 4 Load Current − A
5
6
RT FSEL SS/ENA VBIAS VIN VIN VIN VIN VIN PGND PGND PGND PGND PGND
AVAILABLE OPTIONS
TJ –55°C to 125°C
OUTPUT VOLTAGE
0.9 V 1.2 V 1.5 V 1.8 V 2.5 V 3.3 V
PACKAGED DEVICES
PLASTIC HTSSOP (PWP) (1)
TPS54611MPWPREP (2) TPS54612MPWPREP (2)
TPS54613MPWPREP TPS54614MPWPREP (2)
TPS54615MPWPREP TPS54616MPWPREP (2)
(1) The PWP package is taped and reeled as denoted by the R suffix on the device type (i.e., TPS54616MPWPREP). See the application section of this data sheet for the PowerPAD drawing and layout information.
(2) Product Preview
2
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TPS54611-EP, TPS54612-EP TPS54613-EP, TPS54614-EP TPS54615-EP, TPS54616-EP
SGLS293A – FEBRUARY 2005 – REVISED AUGUST 2005
TERMINAL FUNCTIONS
TERMINAL
NAME
NO.
AGND
1
BOOT
5
NC 3
PGND 15–19
PH 6–14
PWRGD
4
RT 28
SS/ENA
26
FSEL
27
VBIAS
25
VIN 20–24 VSENSE 2
DESCRIPTION
Analog ground. Return for slow-start capacitor, VBIAS capacitor, RT resistor FSEL. Make PowerP.