![]() Changes in Vo due to heating effects must be taken into account separately. Load and line regulation are specified at constant junction temperature. (Refer to test circuit = 10V, CI= 0.33♟, CO= 0.1♟, unless otherwise specified) Parameter Symbol =+25 oC Output Voltage 5.0mA to1.5A Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current Regload IQ VO/T VN RR VDrop rO ISC IPK to 1.0A VI= to 25V IO=+25 C Parameter Input Voltage (for to 18V) (for = 24V) Thermal Resistance Junction-Cases (TO-220) Thermal Resistance Junction-Air (TO-220) Operating Temperature Range Storage Temperature Range Symbol VI RJC RJA TOPR TSTG Value Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. If adequate heat sinking is provided, they can deliver over 1A output current. Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. ![]() ![]() The MC78XX/LM78XX/MC78XXA series of three terminal positive regulators are available in the TO-220/D-PAK package and with several fixed output voltages, making them useful in a wide range of applications. ![]() Output Current to 1A Output Voltages of 24V Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area Protection ![]()
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