KA78M05 / LM78M05 / MC78M05 3-Terminal 0.5 A Positive Voltage Regulator August 2013 KA78M05 / LM78M05 / MC78M05 3-Terminal 0.5 A Positive Voltage Regulator Description Features The KA78M05 / LM78M05 / MC78M05 series of three- Output Current up to 0.5 A terminal positive regulators is available in the TO-220 / D- Output Voltages of 5 V PAK packages, making it useful in a wide range of appli- Thermal Overload Protection cations. Short-Circuit Protection Output Transistor Safe Operating Area (SOA) Protection TO-220 GND 1 D-PAK GND 1 1. Input 2. GND 3. Output (1) Ordering Information Product Number Package Packing Method Operating Temperature KA78M05TU TO-220 (Dual Gauge) Rail KA78M05RTM D-PAK Tape and Reel 0 to +125C MC78M05CDTX LM78M05CT TO-220 (Single Gauge) Rail Note: 1. Refer to below figure for TM / TF suffix of DPAK packing option. 2001 Fairchild Semiconductor Corporation www.fairchildsemi.com KA78M05 / LM78M05 / MC78M05 Rev. 1.1.0 1 KA78M05 / LM78M05 / MC78M05 3-Terminal 0.5 A Positive Voltage Regulator Block Diagram INPUT OUTPUT SERIES PASS 3 ELEMENT 1 CURRENT SOA R1 GENERATOR PROTECTION REFERENCE STARTING ERROR VOLTAGE CIRCUIT AMPLIFIER R2 THERMAL PROTECTION GND 2 Figure 1. Block Diagram Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera- ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi- tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Parameter Value Unit V Input Voltage (for V = 5 V) 35 V I O (2) R Thermal Resistance, Junction-Case TO-220 (T = +25C) 2.5 C/W JC C TO-220 (T = +25C) 66 A (2, 3) R Thermal Resistance, Junction-Air C/W JA D-PAK (T = +25C) 92 A T Operating Junction Temperature Range 0 to +125 C OPR T Maximum Junction Temperature Range 150 C J(MAX) T Storage Temperature Range -65 to +150 C STG Notes: 2. Thermal resistance test board. Size: 76.2 mm x 114.3 mm x 1.6 mm (1S0P) JEDEC standard: JESD51-3, JESD51-7 3. Assume no ambient airflow. 2001 Fairchild Semiconductor Corporation www.fairchildsemi.com KA78M05 / LM78M05 / MC78M05 Rev. 1.1.0 2