L78M Datasheet Precision 500 mA regulators Features Output current to 0.5 A Output voltages of 5 6 8 9 10 12 15 24 V Thermal overload protection TO-220 Short circuit protection TO-220FP Output transition SOA protection Output voltage tolerance: 2 % (AB and AC versions) or 4 % (C version) Guaranteed in extended temperature range IPAK DPAK Description The L78M series of three-terminal positive regulators is available in TO-220, TO-220FP, DPAK and IPAK packages and with several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shutdown and safe area protection, resulting it essentially indestructible. If adequate heat sinking is provided, they can deliver over 0.5 A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents. Maturity status link L78M DS0425 - Rev 24 - September 2020 www.st.com For further information contact your local STMicroelectronics sales office.L78M Diagram 1 Diagram Figure 1. Block diagram AMG080320171800MT DS0425 - Rev 24 page 2/45