Infineon Technologies AG Voltage Regulators - DC DC Switching Regulators TLF50241ELXUMA2

The TLF50241ELXUMA2 is a 2.2 MHz step-down DC/DC switching regulator designed to provide a 5 V output with a maximum current of 500 mA. It features a low quiescent current of less than 45 ¬µA at nominal battery voltage, making it suitable for applications requiring energy efficiency. The input voltage range is broad, from 4.75 V to 45 V, allowing for versatility in various applications, particularly in automotive environments where it can operate within a temperature range of -40¬8C to 150¬8C. This regulator employs current mode PWM regulation and includes a Pulse Frequency Modulation (PFM) mode for improved efficiency under light load conditions. Key protection features include cycle-by-cycle current limitation, overtemperature shutdown, and input undervoltage lockout. The integrated soft-start function helps limit inrush current during startup, preventing output voltage overshoot. The device is packaged in a compact PG-SSOP-14 format with an exposed pad, facilitating efficient thermal management and space-saving designs.