TPS54616MPWPREP Datasheet, PDF (1/24 Pages) Texas Instruments – 3-V TO 6-V INPUT, 6-A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT)

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Typical Size
6,6 mm X 9,8 mm
TPS54611, TPS54612
TPS54613, TPS54614
TPS54615, TPS54616
SLVS400C − AUGUST 2001 − REVISED APRIL 2005
3-V TO 6-V INPUT, 6-A OUTPUT SYNCHRONOUS BUCK PWM
SWITCHER WITH INTEGRATED FETs (SWIFT™)
FEATURES
D 30-mΩ, 12-A Peak MOSFET Switches for High
Efficiency at 6-A Continuous Output Source
and Sink
D 0.9-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V Fixed
Output Voltage Devices With 1.0% Initial
Accuracy
D Internally Compensated for Easy Use and
Minimal Component Count
D Fast Transient Response
D Wide PWM Frequency − Fixed 350 kHz,
550 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 Low-Voltage, High-Density Systems With
Power Distributed at 5 V or 3.3 V
D Point of Load Regulation for High
Performance DSPs, FPGAs, ASICs and
Microprocessors
D Broadband, Networking and Optical
Communications Infrastructure
D Portable Computing/Notebook PCs
Input
SIMPLIFIED SCHEMATIC
VIN
PH
TPS54614
BOOT
PGND
VBIAS ^VSENSE
AGND
Output
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. 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.
EFFICIENCY AT 350 kHz
100
95
90
85
80
75
70
65
60
55
50
0
1
2
3
4
5
6
Load Current − A
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.
PowerPAD and SWIFT are trademarks of Texas Instruments.
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.
Copyright © 2001−2005, Texas Instruments Incorporated