LM72880-Q1

The LM72880-Q1 is a high-efficiency, automotive-grade buck-boost DC-DC converter designed for demanding power management applications in vehicles. It supports an input voltage range from 4.5 V to 36 V, enabling seamless operation across various automotive electrical systems, including 12 V and 24 V battery networks. The device delivers up to 5 A of continuous output current, making it suitable for powering sensitive electronics such as infotainment systems, ADAS components, and microcontrollers. This converter features a wide operating frequency range (from 200 kHz to 2 MHz), allowing designers to optimize efficiency and reduce external component size. Its synchronous rectification architecture minimizes power loss, enhancing thermal performance and system reliability. The LM72880-Q1 includes integrated high-side and low-side MOSFETs, simplifying the design process and reducing bill-of-materials cost. Designed with automotive safety and robustness in mind, the device meets AEC-Q100 Grade 1 qualification standards, ensuring reliable performance under extreme temperature conditions (-40°C to +125°C). It also offers comprehensive protection mechanisms, including over-current protection (OCP), over-voltage protection (OVP), thermal shutdown, and undervoltage lockout (UVLO), which safeguard both the converter and connected loads from fault conditions. The LM72880-Q1 provides flexible configuration options via an I²C interface, enabling real-time monitoring and adjustment of output voltage, switching frequency, and operational modes. This feature facilitates dynamic load management and supports advanced power sequencing in complex automotive systems. Additionally, the device includes a power-good signal and programmable soft-start function to ensure smooth startup and prevent inrush currents. Its compact footprint and high integration level make it ideal for space-constrained environments typical in modern vehicle architectures. The converter operates efficiently across a wide load range—from light-load standby to full-load operation—making it well-suited for always-on systems that must maintain low quiescent current during idle states. Common applications include engine control units (ECUs), telematics modules, camera systems, and electric power steering (EPS) controllers. By combining high efficiency, robust protection, and ease of use, the LM72880-Q1 serves as a reliable power solution for next-generation automotive electronics requiring stringent performance and safety standards.