The Infineon Technologies TLS850B0 family are high-performance, very low dropout linear voltage regulators for 3.3V and 5.0V power supplies. Available in TO252 and TO263 packages, they have a 3V to 40V input voltage range and a very low 20µA quiescent current, which make these devices suitable for automotive or other supply systems connected to the battery permanently. Below an output current of 100mA the typical dropout voltage of 100mV is very low, while the operating range starts at an input voltage of only 3V (extended operating range). This makes these devices suitable for automotive systems that need to operate during cranking conditions. Internal protection features such as output current limitation and overtemperature shutdown protect them from damage.