TPS62442-Q1

The TPS62442-Q1 is a high-efficiency, low-noise synchronous buck converter designed for automotive applications, featuring an input voltage range of 3.5 V to 18 V, making it suitable for harsh power environments such as those found in vehicles. It delivers up to 2 A of continuous output current with excellent load and line regulation, ensuring stable power delivery under varying conditions. The device operates at a fixed frequency of 2 MHz, which allows the use of small external components while minimizing electromagnetic interference (EMI), a critical requirement in automotive electronics. This converter incorporates advanced control architecture that enables seamless transition between pulse-width modulation (PWM) and pulse-frequency modulation (PFM) modes depending on the load. In light-load conditions, PFM mode significantly improves efficiency by reducing switching losses, while PWM mode ensures minimal output ripple during heavy loads. This adaptive behavior enhances overall system performance and thermal management, particularly important in space-constrained automotive systems. The TPS62442-Q1 includes comprehensive protection features such as over-current protection (OCP), over-temperature shutdown (OTSD), and undervoltage lockout (UVLO), ensuring robust operation even under fault conditions. Its integrated high-side and low-side MOSFETs reduce component count and simplify design, while the internal soft-start function minimizes inrush current during startup, preventing stress on the power supply and connected circuits. Designed to meet AEC-Q100 Grade 1 qualification standards, this device is optimized for reliable performance across extended temperature ranges from –40°C to +125°C. It supports both fixed and adjustable output voltages via an external resistor divider, offering flexibility in system design. The compact 3 mm × 3 mm WSON package further reduces board footprint, ideal for applications where space is limited, such as infotainment systems, ADAS sensors, and telematics modules. In addition to its core power conversion capabilities, the TPS62442-Q1 offers a shutdown pin for low-power modes and supports enable functionality for precise power sequencing in multi-rail systems. Its high integration level, combined with automotive-grade reliability and efficiency, makes it well-suited for modern vehicle platforms requiring robust, scalable power solutions.