TPS54880 Series

4.5 to 5.5V Input, 8A Synchronous Step-Down Converter for Sequencing

Catalog

4.5 to 5.5V Input, 8A Synchronous Step-Down Converter for Sequencing

Part	Supplier Device Package	Function	Voltage - Output (Max) [Max]	Voltage - Output (Min/Fixed)	Synchronous Rectifier	Current - Output	Frequency - Switching	Mounting Type	Voltage - Input (Max) [Max]	Package / Case [custom]	Package / Case	Package / Case [custom]	Topology	Output Type	Voltage - Input (Min) [Min]	Output Configuration	Number of Outputs	Operating Temperature [Max]	Operating Temperature [Min]
Texas Instruments TPS54880PWPR	28-HTSSOP	Step-Down	3.3 V	0.9 V		8 A	350 kHz	Surface Mount	6 V	4.4 mm	28-PowerTSSOP	0.173 "	Buck	Adjustable	4 V	Positive	1	85 °C	-40 °C

Catalog

4.5 to 5.5V Input, 8A Synchronous Step-Down Converter for Sequencing

Key Features

• Power Up/Down Tracking For Sequencing30-m, 12-A Peak MOSFET Switches for High Efficiency at 8-A Continuous Output Source or Sink CurrentWide PWM Frequency:Fixed 350 kHz or Adjustable 280 kHz to 700 kHzPower Good and EnableLoad Protected by Peak Current Limit and Thermal ShutdownIntegrated Solution Reduces Board Area and Component CountAPPLICATIONSLow-Voltage, High-Density Distributed Power SystemsPoint of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors Requiring SequencingBroadband, Networking and Optical Communications InfrastructurePowerPAD and SWIFT are trademarks of Texas Instruments.Power Up/Down Tracking For Sequencing30-m, 12-A Peak MOSFET Switches for High Efficiency at 8-A Continuous Output Source or Sink CurrentWide PWM Frequency:Fixed 350 kHz or Adjustable 280 kHz to 700 kHzPower Good and EnableLoad Protected by Peak Current Limit and Thermal ShutdownIntegrated Solution Reduces Board Area and Component CountAPPLICATIONSLow-Voltage, High-Density Distributed Power SystemsPoint of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors Requiring SequencingBroadband, Networking and Optical Communications InfrastructurePowerPAD and SWIFT are trademarks of Texas Instruments.

Description

As a member of the SWIFT™ family of dc/dc regulators, the TPS54880 low-input voltage high-output current synchronous buck PWM converter integrates all required active components. Using the TRACKIN pin with other regulators, simultaneous power up and down are easily implemented. 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 3.8 V; an internally or externally set slow-start circuit to limit inrush currents; and a power good output useful for processor/logic reset. The TPS54880 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. As a member of the SWIFT™ family of dc/dc regulators, the TPS54880 low-input voltage high-output current synchronous buck PWM converter integrates all required active components. Using the TRACKIN pin with other regulators, simultaneous power up and down are easily implemented. 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 3.8 V; an internally or externally set slow-start circuit to limit inrush currents; and a power good output useful for processor/logic reset. The TPS54880 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.