Three Terminal Voltage Regulators KA78XXA Features Package Output Voltage Regulators 5V KA7805A 8V KA7808A 9V KA7809A 12V KA7812A . 15V KA7815A 1 2 3 24V KA7824A 1.5A 1:Input 2:GND 3:Output Max Output Current Internal thermal overload prection Internal short-current limiting Output transistor safe-area compensation 4% Output voltage offered in 4% tolerance Functional diagram Fig.1 o Absolute Maximum Rating (Ta = 25 C unless otherwise noted) Parameter Symbol Limit Unit for Vo=5V to Vo=18V -35 Vin V for Vo=24V -40 Input Voltage PD Internal Limited W Power Dissipation Tj +125 Junction Temperature TSTG -65~+150 Storage Temperature Range - RJC 5 W Thermal Resistance -Junction to Case - RJA 50 /W Thermal Resistance -Junction to Ambient 1 Ver-1.0 KA7805A Electrical Characteristics o o (Vin= 10V, Iout=500mA, 0 CTj125 C, Cin=0.33uF, Cout=0.1uF unless otherwise specified.) Parameter Symbol Test Condition Min Typ Max Unit Tj=25 4.80 5 5.20 Vout V Output voltage 7.5VVin20V, 5mAIout1A, PD15W 4.75 5 5.25 7.5VVin25V -- 4 100 REGline Tj=25 8VVin12V -- 1.6 50 Line Regulation mV 5mAIout1.5A -- 9 100 REGload Tj=25 250mAIout750mA -- 4 50 Load Regulation Iq Iout=0, Tj=25 -- 5.0 8 Quiescent Current mA 8.0VVin25V -- -- 0.8 Iq Quiescent Current Change 5mAIout1A -- -- 0.5 Vn -- 42 -- V 10Hzf100KHz, Tj=25 Output Noise Voltage RR f=120Hz, 8VVin18V 62 73 -- dB Ripple Rejection Ratio Vdrop Iout=1A, Tj=25 -- 2 -- V Voltage Drop Ios Tj=25 -- 230 -- mA Output Short Circuit Current Io peak Tj=25 -- 2.2 -- A Peak Output Current Vout/ Tj Iout=5mA, 0 Tj125 -- 0.8 -- mV/ Temperature Coefficient of Output Voltage Ro f=1KHz -- 15 -- m Output resistance KA7808A Electrical Characteristics o o (Vin= 14V, Iout=500mA, 0 CTj125 C, Cin=0.33uF, Cout=0.1uF unless otherwise specified.) Parameter Symbol Test Condition Min Typ Max Unit Tj=25 7.7 8.0 8.3 Vout V Output voltage 11VVin23V, 5mAIout1A, PD15W 7.6 8.0 8.4 10.5VVin25V -- 5.0 160 REGline Tj=25 Line Regulation 11VVin17V -- 2.0 80 mV 5mAIout1.5A -- 10 160 REGload Tj=25 Load Regulation 250mAIout750mA -- 5.0 80 Iq Iout=0, Tj=25 -- 5.0 8 Quiescent Current mA 11VVin25V -- -- 0.8 Iq 5mAIout1A -- -- 0.5 Quiescent Current Change Vn 10Hzf100KHz, Tj=25 -- 52 -- V Output Noise Voltage RR f=120Hz, 11.5VVin21.5V 56 73 -- dB Ripple Rejection Ratio Vdrop Iout=1A, Tj=25 -- 2 -- V Voltage Drop Ios Tj=25 -- 230 -- mA Output Short Circuit Current Io peak Tj=25 -- 2.2 -- A Peak Output Current Vout/ Tj Iout=5mA, 0 Tj125 -- 0.8 -- mV/ Temperature Coefficient of Output Voltage Ro f=1KHz -- 17 -- m Output resistance 2 Ver-1.0