TPS4141-Q1

The TPS4141-Q1 is a high-efficiency, synchronous buck converter designed for automotive applications, offering robust performance under harsh environmental conditions. It supports input voltages ranging from 4.5 V to 36 V, making it suitable for a wide range of power supply requirements in vehicle systems such as infotainment, ADAS, and body control modules. The device delivers up to 4 A of output current with excellent thermal management, ensuring stable operation even at elevated temperatures. This converter features an integrated high-side and low-side MOSFET, which reduces external component count and simplifies the design process while improving efficiency. Its fixed-frequency PWM architecture operates at 250 kHz to 1 MHz, allowing flexibility in optimizing efficiency and minimizing external filter size. The TPS4141-Q1 also includes a spread-spectrum modulation feature to reduce electromagnetic interference (EMI), meeting stringent automotive EMI standards without additional filtering. Designed for reliability in automotive environments, the TPS4141-Q1 complies with AEC-Q100 Grade 1 qualification, ensuring robustness against temperature cycling, humidity, and mechanical stress. It includes comprehensive protection mechanisms such as over-current protection (OCP), over-voltage protection (OVP), thermal shutdown, and undervoltage lockout (UVLO), enhancing system safety and longevity. These protections are critical in maintaining operational integrity during transient load events or fault conditions typical in automotive electronics. The device supports both forced continuous conduction mode (CCM) and pulse-skipping mode for improved light-load efficiency, making it ideal for always-on systems where power consumption must be minimized. An enable pin allows for easy power sequencing, and the soft-start function prevents inrush current during startup, protecting downstream components. Additionally, the TPS4141-Q1 offers adjustable output voltage via a resistive divider network, enabling precise regulation across various load scenarios. With its compact 8-pin SOIC package and minimal external component requirement, the TPS4141-Q1 enables space-efficient designs in densely populated automotive PCBs. It is particularly well-suited for applications requiring high reliability, such as electric vehicle battery management systems, telematics units, and advanced driver assistance systems (ADAS). The combination of high efficiency, wide input range, and extensive protection features makes this converter a preferred choice for modern automotive power solutions.