TPS3306-Q1

The TPS3306-Q1 is a high-reliability, low-dropout voltage regulator designed for automotive applications, offering robust performance under demanding environmental conditions. It features an input voltage range of 2.5 V to 5.5 V, making it suitable for systems powered by 3.3 V or 5 V rails commonly found in vehicle electronics. The device delivers a stable output voltage with excellent line and load regulation, ensuring consistent power delivery even during transient load events or supply fluctuations. This regulator incorporates advanced protection mechanisms including over-current protection (OCP), thermal shutdown, and reverse battery protection, which enhance system reliability in harsh automotive environments. Its low quiescent current—typically 40 µA in normal operation and as low as 1 µA in shutdown mode—makes it ideal for always-on systems where power efficiency is critical. Additionally, the TPS3306-Q1 supports fast start-up and has a minimal external component count, simplifying design integration and reducing board space requirements. Designed to meet AEC-Q100 Grade 1 qualification standards, the TPS3306-Q1 is built for automotive-grade durability, with operation across a temperature range from –40°C to +125°C. It is available in a compact, thermally optimized WSON-8 package, enabling efficient heat dissipation while maintaining a small footprint. The device also includes a precision enable pin that allows for accurate power sequencing in multi-rail systems, supporting complex power management strategies in modern vehicles. Common applications include infotainment systems, ADAS (Advanced Driver Assistance Systems), telematics modules, and body control units where stable, efficient, and reliable power conversion is essential. Its ability to maintain output regulation during voltage transients such as load dumps or cold crank ensures uninterrupted operation of sensitive microcontrollers and sensors. Furthermore, the TPS3306-Q1’s integrated soft-start feature minimizes inrush current, protecting both the regulator and downstream components from stress during power-up.