TPS25940-Q1

The TPS25940-Q1 is a high-performance, automotive-grade power switch designed for robust and efficient power management in demanding applications. It features an integrated N-channel MOSFET with a low on-resistance of 18 mΩ, enabling high current handling up to 6 A while minimizing power loss and heat generation. The device supports input voltages from 4.5 V to 36 V, making it suitable for a wide range of automotive systems, including infotainment, ADAS, and body control modules. This power switch includes comprehensive protection features such as overcurrent protection (OCP), overtemperature shutdown (OTSD), and reverse voltage protection, ensuring reliable operation under fault conditions. Its programmable current limit allows customization for specific load requirements, enhancing system flexibility. Additionally, the TPS25940-Q1 offers a fast response time for transient load events, maintaining stable output voltage during sudden changes in demand. The device supports both analog and digital control modes through a dedicated enable pin or a digital interface, allowing seamless integration into modern vehicle architectures. With an ultra-low quiescent current of less than 1 μA in shutdown mode, it contributes to improved energy efficiency and reduced battery drain in always-on systems. The internal thermal shutdown mechanism protects the device from damage due to excessive junction temperature, while its EMI-optimized switching behavior reduces electromagnetic interference in sensitive environments. Designed to meet AEC-Q100 Grade 1 reliability standards, the TPS25940-Q1 is qualified for automotive applications operating across temperatures from –40°C to +125°C. Its compact 3 mm × 3 mm WQFN package ensures minimal board space usage, ideal for space-constrained designs. The device also includes a built-in soft-start function that limits inrush current during startup, preventing stress on the power supply and connected components. In summary, the TPS25940-Q1 delivers a robust combination of performance, protection, and efficiency tailored for modern automotive electronics. Its wide input range, high current capability, and advanced safety features make it an ideal choice for managing power distribution in vehicles where reliability and durability are critical.