5V Input 8A Synchronous Buck Converter With Disabled Sinking During Start Up
As a member of the SWIFT? family of DC/DC Regulators family of DC/DC Regulators the TPS54873 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 4 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.
For reliable power up in output precharge applications, the TPS54873 is designed to only source current during startup.
The TPS54873 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.
By Texas Instruments
|TPS54873PWPRG4||Texas Instruments||12A SWITCHING REGULATOR, 762kHz SWITCHING FREQ-MAX, PDSO28, GREEN, PLASTIC, HTSSOP-28|
|TPS54873PWP||Texas Instruments||4.5 to 5.5V Input, 8A Synchronous Step-Down SWIFT™ Converter for Prebiased Outputs 28-HTSSOP -40 to 85|
|TPS54873PWPG4||Texas Instruments||4.5 to 5.5V Input, 8A Synchronous Step-Down SWIFT™ Converter for Prebiased Outputs 28-HTSSOP -40 to 85|
|TPS54873PWPR||Texas Instruments||4.5 to 5.5V Input, 8A Synchronous Step-Down SWIFT™ Converter for Prebiased Outputs 28-HTSSOP -40 to 85|
|TPS54873 Pb-Free||TPS54873 Cross Reference||TPS54873 Schematic||TPS54873 Distributor|
|TPS54873 Application Notes||TPS54873 RoHS||TPS54873 Circuits||TPS54873 footprint|