PL78L09XA3

These PL78L09XA3 regulators employ internal current-limiting and thermal-shutdown, making them essentially indestructible. PL78L09XA3 can deliver up to 100mA output current. if the case temperature can keep in Tc=25°C.

PL78L09XA3 are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition, they can be used with power pass elements to make high-current voltage regulators. The PL78L09 used as a Zener diode/resistor combination replacement, offers an effective output impedance improvement of typically two orders of magnitude, along with lower quiescent current and lower noise.