Specification	TPS54673PWPR

Current - Output	6 A
Frequency - Switching [Max]	550 kHz
Frequency - Switching [Min]	350 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	28-PowerTSSOP
Package / Case [custom]	4.4 mm
Package / Case [custom]	0.173 "
Supplier Device Package	28-HTSSOP
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	6 V
Voltage - Input (Min) [Min]	3 V
Voltage - Output (Max) [Max]	4.5 V
Voltage - Output (Min/Fixed)	0.891 V

TPS54673 Series

3V to 6V Input, 6A Synchronous Step-Down SWIFT™ Converter for Prebiased Outputs

Part	Voltage - Input (Min) [Min]	Current - Output	Supplier Device Package	Voltage - Output (Max) [Max]	Output Configuration	Voltage - Output (Min/Fixed)	Topology	Mounting Type	Function	Package / Case [custom]	Package / Case	Package / Case [custom]	Voltage - Input (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Number of Outputs	Operating Temperature [Min]	Operating Temperature [Max]	Output Type
Texas Instruments TPS54673PWPRG4	3 V	6 A	28-HTSSOP	4.5 V	Positive	0.891 V	Buck	Surface Mount	Step-Down	4.4 mm	28-PowerTSSOP	0.173 "	6 V	550 kHz	350 kHz	1	-40 °C	125 ¯C	Adjustable
Texas Instruments TPS54673PWPR	3 V	6 A	28-HTSSOP	4.5 V	Positive	0.891 V	Buck	Surface Mount	Step-Down	4.4 mm	28-PowerTSSOP	0.173 "	6 V	550 kHz	350 kHz	1	-40 °C	125 ¯C	Adjustable
Texas Instruments TPS54673PWP	3 V	6 A	28-HTSSOP	4.5 V	Positive	0.891 V	Buck	Surface Mount	Step-Down	4.4 mm	28-PowerTSSOP	0.173 "	6 V	550 kHz	350 kHz	1	-40 °C	125 ¯C	Adjustable

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2000	$ 3.14
Texas Instruments	LARGE T&R	1	$ 4.73
		100	$ 3.86
		250	$ 3.03
		1000	$ 2.57

Description

General part information

TPS54673 Series

As a member of the SWIFT™ family of dc/dc regulators, the TPS54673 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 in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.

For reliable power up in output precharge applications, the TPS54673 is designed to only source current during startup.

The TPS54673 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.

Documents

Technical documentation and resources

Synchronous Buck Switcher w/Disabled Sinking During Start-Up datasheet (Rev. A)

Data sheet