TPS25984B2RZJR

Overview

The TPS25984B2RZJR is a Texas Instruments stackable eFuse IC designed for high-current power distribution. It operates within a 4.5V to 16V input range and supports up to 70A of output current with an on-resistance (RDS(on)) of 0.8mΩ. The device features precise, fast current monitoring capabilities and allows parallel stacking to increase total system current capacity. Packaged in a compact 4.5mm x 5mm QFN format, it integrates large-circuit protection and PMIC functions for efficient power management.

Feature Summary

• Stackable architecture enabling parallel connection to scale total current capacity for high-power systems
• Integrated precise and fast current monitoring functionality for accurate load management
• High-efficiency internal switch with low on-resistance to minimize power loss

Applications

• High-power server and storage backplane power distribution
• Industrial equipment requiring scalable current protection
• Telecommunications infrastructure power modules

Procurement Notes

Verify the specific suffix '2RZJR' against the official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints for the 4.5mm x 5mm QFN package. Confirm that the 70A rating aligns with your thermal design and system requirements before procurement.

Selection Notes

Select this component when designing systems requiring modular current scaling through parallel eFuse configurations. It is suitable for applications needing robust overcurrent protection combined with real-time current sensing. Consider thermal dissipation capabilities given the high current handling and low RDS(on) characteristics.

Part Context

This part belongs to the TPS2598x family of stackable electronic fuses from Texas Instruments. These devices are engineered for modern power architectures where redundancy and scalability are critical. The family offers integrated solutions combining circuit protection with power management features in small form factors.

Replacement Considerations

Public confirmed substitute part numbers: None available.