LM5168-Q1

The LM5168-Q1 is a high-efficiency, synchronous buck converter designed for automotive and industrial applications, featuring an input voltage range from 4.5 V to 60 V, making it suitable for demanding power management tasks in harsh environments. It supports up to 30 A continuous output current, enabling robust performance under heavy load conditions while maintaining excellent thermal stability through optimized internal architecture and efficient switching. This device incorporates integrated high-side and low-side MOSFETs, reducing external component count and board space requirements, while also enhancing system reliability. The converter operates with a fixed-frequency PWM control scheme (typically 200 kHz to 1 MHz), allowing precise regulation of output voltage across wide input and load variations. Its adaptive dead-time control and built-in current sense circuitry ensure optimal efficiency and minimize power losses during switching transitions. The LM5168-Q1 includes comprehensive protection features such as over-current protection (OCP), over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown, which enhance system safety and longevity. These protections are implemented with minimal latency, ensuring rapid response to fault conditions without compromising the overall system performance. Designed for compliance with AEC-Q100 Grade 1 standards, the LM5168-Q1 is qualified for automotive use, including applications in electric vehicles, ADAS systems, telematics, and infotainment units. Its wide input range and robust protection make it ideal for handling transient events like load dumps or cold crank conditions common in vehicle power systems. Additionally, the device offers flexible configuration options via an I²C interface, enabling real-time monitoring and adjustment of operating parameters such as output voltage, switching frequency, and fault thresholds. This programmability simplifies design customization and supports dynamic power management strategies in complex electronic systems. The LM5168-Q1 is available in a thermally enhanced 28-pin HTSSOP package, offering reliable operation in high-temperature environments typical in automotive and industrial settings. Its compact footprint and high integration reduce BOM costs while improving system efficiency and manufacturability.