JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD TO-251-3L/TO-252-2L Plastic-Encapsulate Regulators CJ78M12 Three-terminal positive voltage regulator TO-251-3L TO-252-2L FEATURES Maximum Output current IOM: 0.5 A Output voltage VO: 12V Continuous total dissipation PD: 1.25 W (Ta= 25 ℃) 15 W (Tc= 25 ℃) 123 1.IN 2.GND 3.OUT ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified) Parameter Symbol Input Voltage Value 35 Vi Operating Junction Temperature Range Storage Temperature Range Unit V TOPR 0-+125 ℃ TSTG -65-+150 ℃ ELECTRICAL CHARACTERISTICS (Vi=19V,Io=350mA, Ci=0.33μF,Co=0.1μF, unless otherwise specified ) Parameter Symbol Output Voltage Vo Test conditions 14.5≤Vi≤27V, Io=5mA-350mA Po≤ 1.25W Load Regulation ΔVo Line Regulation ΔVo Quiescent Current Min Typ Max Unit 25℃ 11.5 12 12.5 V 0-125℃ 11.4 12 12.6 V Io=5mA-500mA 25℃ 25 240 mV Io=5mA-200mA 25℃ 10 120 mV 14.5V≤Vi≤30V, Io=200mA 25℃ 10 100 mV 16V≤Vi≤30V, Io=200mA 25℃ 3 50 mV 25℃ 4.6 6 mA Iq ΔIq 14.5V≤Vi≤30V, Io=200mA 0-125℃ 0.8 mA ΔIq 5mA≤IO≤350mA 0-125℃ 0.5 mA Output Noise Voltage VN 10Hz≤f≤100KHz 25℃ Ripple Rejection RR 15≤Vi≤25V,f=120Hz,Io=300mA Dropout Voltage Vd Io=350mA Short Circuit Current Isc Vi=19V Peak Current Ipk Quiescent Current Change TYPICAL APPLICATION Vi 1 3 0.33μF 2 μV 80 dB 25℃ 2 V 25℃ 240 mA 25℃ 0.7 A 0-125℃ 55 Vo CJ78M12 UTC Ci 75 0.5A Co 0.1μF B,Jan,2012