TPS51225CRUKR

Overview

The TPS51225CRUKR is a Texas Instruments PMIC featuring two D-CAP synchronous buck controllers and two integrated LDOs. It operates with an input voltage range of 5.5 V to 24 V. The switching frequencies are fixed at 300 kHz and 355 kHz. The device provides regulated outputs including 3.3 V and 5 V, with specific LDO ratings of 3.3 V at 100 mA. It is housed in a 20-WQFN (3x3) package and supports surface mount installation.

Feature Summary

• Integrates dual synchronous step-down controllers with D-CAP control mode for stable operation.
• Includes two low-dropout regulators providing dedicated auxiliary power rails.
• Supports wide input voltage ranges suitable for various system architectures.

Applications

• Portable laptop debugging power supplies
• Multi-rail server power distribution systems
• Industrial equipment requiring isolated or non-isolated multi-output regulation

Procurement Notes

Verify the suffix 'CR' indicates the specific temperature grade and material composition as defined by the manufacturer. Confirm the 'UKR' suffix matches the required reel quantity and tape specifications for automated assembly lines. Ensure compatibility with RoHS3 standards if environmental compliance is mandatory for the target market.

Selection Notes

Select this component when a design requires two independent synchronous buck channels alongside two fixed LDO outputs within a compact footprint. The integrated nature reduces external component count compared to discrete solutions. Evaluate thermal performance requirements given the high current capabilities of the buck stages.

Part Context

This part belongs to the TPS51225 family of dual sync step-down controllers. Variants such as TPS51225BRUKT share similar functional blocks but may differ in specific electrical parameters or packaging options. The series utilizes D-CAP topology to simplify compensation and improve transient response.

Replacement Considerations

TPS51225BRUKT is a documented alternative within the same product family offering similar dual controller functionality.