The TLS203B0LD V50 from Infineon Technologies is an Automotive Qualified Linear Voltage Post Regulator that has been designed for low noise and low dropout applications. It requires an input voltage of up to 20 V. This regulator provides an output voltage of 5 V and has a dropout voltage of 290 mV. It delivers high energy efficiency along with a low quiescent current of 30 µA. This AEC-qualified regulator features low output noise, reaching values as low as 42 µV (RMS) over a broad bandwidth (10 Hz to 100 kHz) by connecting a bypass capacitor (capacitance of 10 nF). It accommodates the use of small ceramic capacitors (as low as 3.3 µF) without the need for series resistance to offer stability and includes internal protection circuitry for enhanced reliability. This RoHS-compliant regulator is available in a surface-mount package that measures 3.3 x 3.3 x 1 mm.