TPS61087-Q1

The TPS61087-Q1 is a high-efficiency, synchronous buck-boost converter designed for automotive applications, offering a wide input voltage range from 2.5 V to 5.5 V and supporting output voltages from 0.8 V to 5.5 V. It delivers up to 3 A of continuous output current, making it suitable for powering multiple downstream loads in demanding environments such as infotainment systems, ADAS, and body control modules. The device features an integrated high-side and low-side MOSFET, enabling high efficiency across various load conditions while minimizing external component count. This converter operates with a fixed frequency of 1.2 MHz, allowing the use of small inductors and ceramic capacitors to reduce board space and cost. Its architecture supports both buck and boost modes seamlessly, ensuring stable output regulation even when the input voltage drops below or exceeds the output voltage. This flexibility makes it ideal for battery-powered systems where voltage levels fluctuate significantly during operation or charge cycles. The TPS61087-Q1 includes advanced protection features such as over-current protection (OCP), thermal shutdown, and undervoltage lockout (UVLO), enhancing system reliability and safety in harsh automotive environments. It also offers programmable soft-start to limit inrush current and reduce stress on the power supply during startup. An enable pin allows for easy system integration, and the device supports remote sensing for improved accuracy under heavy load conditions. Designed to meet AEC-Q100 Grade 1 qualification standards, the TPS61087-Q1 is built for reliable operation in temperatures ranging from -40°C to +125°C, ensuring robust performance in extreme automotive conditions. Its compact 16-pin WQFN package further supports high-density designs without compromising thermal performance. With low quiescent current and optimized switching efficiency, this converter helps extend battery life in portable and vehicular electronics. In addition to its core functionality, the TPS61087-Q1 provides a configurable output voltage using an external resistor divider, enabling tailored solutions for diverse application needs. It is commonly used in automotive systems requiring stable power delivery from fluctuating battery sources, such as 12V systems with transient events like cold cranking or engine start-stop operations. Its high efficiency and robust protection make it a preferred choice for modern vehicle platforms aiming to meet stringent power management requirements.