78M05 Three-terminal positive voltage regulator FEATURES Maximum output current IOM: 0.5 A Output voltage VO: 5V ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified) ELECTRICAL CHARACTERISTICS AT SPECIFIED VIRTUAL JUNCTION TEMPERATURE (Vi=10V,Io=350mA, Ci=0.33μF,Co=0.1μF,unless otherwise specified) Parameter Symbol Test conditions Min Typ Max Unit 25℃ 4.8 5 5.2 V Output Voltage Vo 7V≤V i≤20V, Io=5mA-350mA -25~125℃ 4.75 5 5.25 V Io=5mA-0.5A 25℃ 15 100 mV Load Regulation ΔVo Io=5mA-200mA 25℃ 5 50 mV 7V≤V i≤25V, Io=200mA 25℃ 3 100 mV Line Regulation ΔVo 8V≤V i≤25V, Io=200mA 25℃ 1 50 mV Quiescent Current Iq 25℃ 4.2 6 mA ΔIq 8V≤V i≤25V, Io=200mA 0.8 mA Quiescent Current Change ΔIq 5mA≤IO≤350mA 0.5 mA Output Noise Voltage VN 10Hz≤ f ≤100KHz 25℃ 40 200 Ripple Rejection RR 8V≤Vi≤18V,f=120Hz,Io=300mA 62 80 dB Dropout Voltage Vd Io=350mA 25℃ 2 2.5 V Short Circuit Current Isc Vi=10V 25℃ 300 mA Peak Current Ipk 25℃ 0.5 A TYPICAL APPLICATION TO-252-2L 1.IN 2.GND 3.OUT Parameter Symbol Value Unit Input Voltage Vi 35 V Thermal Resistance from Junction to Ambient RθJA 80 ℃/W Operating Junction Temperature Range TOPR -40~+125 ℃ Storage Temperature Range TSTG -65~+150 ℃ z z Continuous total dissipation PD: 1.25 W z -25~125℃ -25~125℃ -25~125℃ * Pulse test. μV/Vo Note: Bypass capacitors are recommended for optimum stability and transient response and should be located as close as possible to the regulators. 2 Co 0.1μF Vi 1 3 Vo Ci 0.33μF CJ78M05 (T a= 25 ℃ )