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7 / 30 page MC7800, MC7800A, MC7800AE, NCV7800 http://onsemi.com 7 ELECTRICAL CHARACTERISTICS (Vin = 14 V, IO = 500 mA, TJ = Tlow to 125C (Note 9), unless otherwise noted) MC7808B/NCV7808B MC7808C Characteristic Symbol Min Typ Max Min Typ Max Unit Output Voltage (TJ = 25C) VO 7.7 8.0 8.3 7.7 8.0 8.3 Vdc Output Voltage (5.0 mA IO 1.0 A, PD 15 W) 10.5 Vdc Vin 23 Vdc 11.5 Vdc Vin 23 Vdc VO − 7.6 − 8.0 − 8.4 7.6 − 8.0 − 8.4 − Vdc Line Regulation, TJ = 25C, (Note 10) 10.5 Vdc Vin 25 Vdc 11 Vdc Vin 17 Vdc Regline − − 6.0 1.7 160 80 − − 6.0 1.7 32 16 mV Load Regulation, TJ = 25C (Note 10) 5.0 mA IO 1.5 A Regload − 1.4 160 − 1.4 35 mV Quiescent Current IB − 3.3 8.0 − 3.3 8.0 mA Quiescent Current Change 10.5 Vdc Vin 25 Vdc 5.0 mA IO 1.0 A DIB − − − − − 0.5 − − − − 1.0 0.5 mA Ripple Rejection 11.5 Vdc Vin 18 Vdc, f = 120 Hz RR − 62 − 56 62 − dB Dropout Voltage (IO = 1.0 A, TJ = 25C) VI − VO − 2.0 − − 2.0 − Vdc Output Noise Voltage (TA = 25C) 10 Hz f 100 kHz Vn − 10 − − 10 − mV/VO Output Resistance f = 1.0 kHz rO − 0.9 − − 0.9 − mW Short Circuit Current Limit (TA = 25C) Vin = 35 Vdc ISC − 0.2 − − 0.2 − A Peak Output Current (TJ = 25C) Imax − 2.2 − − 2.2 − A Average Temperature Coefficient of Output Voltage TCVO − −0.4 − − −0.4 − mV/C 9. Tlow =0C for MC78XXC, MC78XXAC, = *40C for NCV78XX, MC78XXB, MC78XXAB, and MC78XXAEB 10.Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. |
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