TPS51225BRUKT

Overview

The TPS51225BRUKT is a dual synchronous step-down controller from Texas Instruments, designed for high-efficiency power conversion. It operates within an input voltage range of 5.5 V to 24 V and supports output voltages between 4.5 V and 5.5 V. The device delivers up to 10 A of output current with a switching frequency ranging from 300 kHz to 355 kHz. It features integrated 5-V and 3.3-V low-dropout regulators (LDOs) and utilizes D-CAP control mode. The component is housed in a 20-WQFN package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates two synchronous buck controllers alongside dedicated 5-V and 3.3-V LDOs for comprehensive power management.
• Employs D-CAP control mode architecture to ensure stable operation without requiring external compensation networks.
• Includes built-in power good indicators and enable functionality for system monitoring and sequencing.

Applications

• Server and storage subsystem power distribution
• Industrial equipment power regulation
• Communication infrastructure power supplies

Procurement Notes

Verify the specific suffix BRUKT against the manufacturer datasheet to confirm pin compatibility and thermal characteristics. Ensure the WQFN-20 package dimensions align with the PCB footprint design. Confirm RoHS compliance status and moisture sensitivity level requirements for the assembly process before procurement.

Selection Notes

Select this component when a dual-output buck solution with integrated LDOs is required for space-constrained designs. The D-CAP topology simplifies layout by eliminating external compensation components. Verify that the 10 A current capability meets the load requirements and that the 300–355 kHz frequency range suits the electromagnetic interference constraints of the application.

Part Context

This part belongs to the TPS51225 family of dual synchronous step-down controllers. Variants such as TPS51225CRUKT share similar core functionalities but may differ in specific electrical parameters or packaging options. The series is engineered for applications demanding high efficiency and compact form factors in power management systems.

Replacement Considerations

Consult official substitution lists for verified alternatives. Cross-reference specifications carefully to ensure equivalent current handling and control topology compatibility.