Typical Size
6,4 mm X 9,7 mm
SLVS398F – JUNE 2001 – REVISED APRIL 2007
www.ti.com
3-V TO 6-V INPUT, 6-A OUTPUT SYNCHRONOUS BUCK PWM
SWITCHER WITH INTEGRATED FETs (SWIFT™)
FEATURES
•
30-mΩ, 12-A Peak MOSFET Switches for High
Efficiency at 6-A Continuous Output Source
or Sink Current
Adjustable Output Voltage Down to 0.9 V With
1.0% Accuracy
Wide PWM Frequency: Fixed 350 kHz, 550 kHz
or Adjustable 280 kHz to 700 kHz
Synchronizable to 700 kHz
Load Protected by Peak Current Limit and
Thermal Shutdown
Integrated Solution Reduces Board Area and
Component Count
SWIFT Documentation, Application Notes, and
Design Software:
DESCRIPTION
As a member of the SWIFT™ family of dc/dc
regulators, the TPS54610 low-input voltage
high-output current synchronous buck PWM
converter integrates all required active components.
Included on the substrate with the listed features are
a true, high performance, voltage error amplifier that
enables maximum performance and flexibility in
choosing the output filter L and C components; an
under-voltage-lockout circuit to prevent start-up until
the input voltage reaches 3 V; an internally or
externally set slow-start circuit to limit inrush
currents; and a power good output useful for
processor/logic reset, fault signaling, and supply
sequencing.
The TPS54610 is 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.
•
•
•
•
•
•
APPLICATIONS
•
•
•
•
Low-Voltage, High-Density Distributed Power
Systems
Point of Load Regulation for High
Performance DSPs, FPGAs, ASICs and
Microprocessors
Broadband, Networking and Optical
Communications Infrastructure
Portable Computing/Notebook PCs
SIMPLIFIED SCHEMATIC
EFFICIENCY AT 350 kHz
100
Input
VIN
PH
TPS54610
BOOT
Output
95
90
85
Efficiency − %
80
75
70
65
60
55
50
0
1
2
3
4
5
6
Load Current − A
V
I
= 5 V,
V
O
= 3.3 V
PGND
VBIAS VSENSE
AGND COMP
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 © 2001–2007, Texas Instruments Incorporated
TI [ TEXAS INSTRUMENTS ]
