Features
· Output Current to 1A Output Voltages of 24V Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area Protection
Description
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. Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents.
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
(Refer to test circuit = 10V, CI= 0.33µF, CO= 0.1µF, 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
Note: 1. Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account separately. Pulse testing with low duty is used.
(Refer to test circuit VI =11V, CI= 0.33µF, CO= 0.1µF, unless otherwise specified) Parameter Symbol =+25 oC Output Voltage = 1KHz VI= =250mA to750A Conditions MC7806 Min. 5.7 59 Typ. Max. mV mA mV/ oC µV/Vo mA A Unit
Line Regulation (Note1) 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
Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.
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