Specification	TPS54373PWP

Current - Output	3 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]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	20-PowerTSSOP
Package / Case	0.173 in
Package / Case [custom]	4.4 mm
Supplier Device Package	20-HTSSOP
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	6 V
Voltage - Input (Min) [Min]	3 V
Voltage - Output (Max) [Max]	3.3 V
Voltage - Output (Min/Fixed)	0.891 V

TPS54373 Series

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

Part	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Supplier Device Package	Voltage - Output (Max) [Max]	Output Configuration	Output Type	Topology	Package / Case	Package / Case [custom]	Package / Case	Frequency - Switching [Max]	Frequency - Switching [Min]	Number of Outputs	Voltage - Input (Min) [Min]	Function	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Mounting Type
Texas Instruments TPS54373PWP	85 °C	-40 °C	3 A	20-HTSSOP	3.3 V	Positive	Adjustable	Buck	20-PowerTSSOP	4.4 mm	0.173 in	550 kHz	350 kHz	1	3 V	Step-Down	6 V	0.891 V	Surface Mount
Texas Instruments TPS54373PWPR	85 °C	-40 °C	3 A	20-HTSSOP	3.3 V	Positive	Adjustable	Buck	20-PowerTSSOP	4.4 mm	0.173 in	550 kHz	350 kHz	1	3 V	Step-Down	6 V	0.891 V	Surface Mount
Texas Instruments TPS54373PWPRG4	85 °C	-40 °C	3 A	20-HTSSOP	3.3 V	Positive	Adjustable	Buck	20-PowerTSSOP	4.4 mm	0.173 in	550 kHz	350 kHz	1	3 V	Step-Down	6 V	0.891 V	Surface Mount

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	210	$ 5.29
Texas Instruments	TUBE	1	$ 6.08
		100	$ 4.96
		250	$ 3.90
		1000	$ 3.31

Description

General part information

TPS54373 Series

As a member of the SWIFT™ family of dc/dc regulators, the TPS54373 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 TPS54373 is designed to only source current during start-up.

The TPS54373 is available in a thermally enhanced 20-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. B)

Data sheet