LMR33620-Q1

The LMR33620-Q1 is a high-efficiency, synchronous buck converter designed for automotive and industrial applications, offering robust performance under demanding conditions. It supports an input voltage range of 4.5 V to 36 V, making it suitable for systems with varying power sources such as 12 V or 24 V automotive networks. The device delivers up to 3 A of continuous output current, enabling reliable operation in power-sensitive environments where efficiency and thermal management are critical. This converter features integrated high-side and low-side MOSFETs, which reduce external component count and simplify design while enhancing overall efficiency. With a fixed switching frequency of 2 MHz, the LMR33620-Q1 minimizes external component size—especially inductors and capacitors—and allows for faster transient response. Its wide operating temperature range from –40°C to +125°C ensures stable performance across extreme environmental conditions typical in automotive and industrial settings. The device includes comprehensive protection features such as over-current protection (OCP), over-temperature protection (OTP), and undervoltage lockout (UVLO), which enhance system reliability and prevent damage during fault conditions. Additionally, it supports enable functionality and provides a programmable soft-start feature to limit inrush current during startup, reducing stress on the power supply and connected components. Designed for ease of use, the LMR33620-Q1 offers adjustable output voltage via an external resistor divider, allowing flexibility in powering various downstream circuits. It also includes a power-good signal that indicates when the output voltage is within regulation, simplifying system-level monitoring and control. The compact 8-pin PowerPAD™ package improves thermal performance by efficiently dissipating heat through the PCB, supporting higher load currents without compromising reliability. Its AEC-Q100 qualified status ensures compliance with automotive-grade reliability standards, making it ideal for use in advanced driver-assistance systems (ADAS), infotainment units, telematics, and industrial control modules. The combination of high efficiency, robust protection, and automotive-grade durability positions the LMR33620-Q1 as a trusted solution for power conversion in safety-critical and high-reliability applications.