1FEATURES
23· 30-mΩ MOSFET Switches for High Efficiency
at 6-A Continuous Output
· Adjustable Output Voltage Down to 0.9 V With
1% Accuracy
· Externally Compensated for Design Flexibility
· Wide PWM Frequency: Fixed 350 kHz, 550 kHz,
or Adjustable 280 kHz to 1.6 MHz
· Synchronizable to 1.6MHz
· Load Protected by Peak Current Limit and
Thermal Shutdown
· Small 3.5mm x 7mm Package and Similar
Layout to TPS54610 Reduces Board Area and
Total Cost
· SWIFT Documentation Application Notes, and
SwitcherPro™ Software: www.ti.com/swift

APPLICATIONS
· Low-Voltage, High-Density Systems With
Power Distributed at 3.3 V or 5 V
· Point of Load Regulation for High Performance
DSPs, FPGAs, ASICs, and Microprocessors
· Broadband, Networking and Optical
Communications Infrastructure

DESCRIPTION
As a member of the SWIFT™ family of dc/dc
regulators, the TPS54617 low-input voltage
high-output current synchronous buck PWM
converter offers the same features as the TPS54610 in a small package and higher switching frequency.
Included on the substrate with the listed features are
a true, high performance, voltage error amplifier that
enables maximum performance under transient
conditions and flexibility in choosing the output filter L
and C components; an undervoltage-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 TPS54617 is available in a thermally enhanced
34 pin QFN (RUV) PowerPAD™ package, which
eliminates bulky heatsinks. TI provides evaluation
modules and the SwitcherPro™ design software tool
to aid in achieving high-performance power supply
designs to meet aggressive equipment development
cycles.