Integrate Circuit SMD Type Three-terminal Positive Voltage Regulator 78M12 TO-252 Unit: mm ■ Features ● Maximum Output current IOM: 0.5 A +0.1 2.30-0.1 +0.15 1.50-0.15 +0.15 6.50-0.15 +0.2 5.30-0.2 +0.8 0.50-0.7 1 2 3 +0.1 0.60-0.1 2.3 3.80 +0.15 5.55-0.15 0.127 max +0.25 2.65-0.1 +0.1 0.80-0.1 +0.28 1.50-0.1 +0.2 9.70-0.2 ● Continuous total dissipation PD: 1.25W +0.15 0.50-0.15 ● Output voltage VO: 12V 1 IN +0.15 4.60-0.15 2 G ND 3 O UT ■ Absolute Maximum Ratings Ta = 25℃ Parameter Symbol Rating Unit Vi 35 V Operating Junction Temperature Range TOPR 0 to +125 ℃ Storage Temperature Range TSTG -65 to +150 ℃ Input Voltage ■ Electrical Characteristics (VIN=19V,Io=350mA,0℃<Tj<125℃,Ci=0.33μF,Co=0.1μF, unless otherwise specified) Parameter Symbol VO Output voltage △VO Load regulation △VO Line regulation Quiescent current Iq △Iq Quiescent current change Min Typ Max Unit Tj=25℃ Testconditons 11.5 12 12.5 V 14.5≤VI≤27V, Io=5mA～350mA,PO≤15W 11.4 12 12.6 V Io=5mA～500mA,Tj=25℃ 25 240 mV Io=5mA～200mA,Tj=25℃ 10 120 mV 14.5≤VI≤30V, Io=200mA,Tj=25℃ 10 100 mV 3 50 mV 4.6 6.0 mA 0.8 mA 0.5 mA 16≤VI≤30V, Io=200mA,Tj=25℃ Tj=25℃ 14.5V≤Vl≤30V, Io=200mA 5mA≤IO≤350mA Output noise voItage VN 10Hz≤f≤100KHz,Tj=25℃ 75 μV Ripple rejection RR 15V≤VI≤25V,f=120Hz, IoUT=300mA 80 dB Dropout Voltage Vd lo=350mA,Tj=25℃ 2.0 V Short Circuit Current Peak Output Current ISC VI =19V, Tj=25℃ 240 mA Ipk Tj=25℃ 0.7 A 55 ■ Typical Application Vi 1 3 Vo 78M12 Ci 0.33μF 2 0.5A Co 0.1μF www.kexin.com.cn 1