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KA7812ER Datasheet(PDF) 5 Page - Fairchild Semiconductor |
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KA7812ER Datasheet(HTML) 5 Page - Fairchild Semiconductor |
5 / 29 page 5 www.fairchildsemi.com KA78XXE/KA78XXAE Rev. 1.0.1 Electrical Characteristics (KA7808E/KA7808ER) (Continued) Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 14V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. Notes: 5. 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 is used. 6. These parameters, although guaranteed, are not 100% tested in production. Symbol Parameter Conditions KA7808E/ER Unit Min. Typ. Max. VO Output Voltage TJ = +25°C 7.7 8.0 8.3 V 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 10.5V to 23V 7.6 8.0 8.4 Regline Line Regulation(5) TJ = +25°CVI = 10.5V to 25V – 5.0 160 mV VI = 11.5V to 17V – 2.0 80 Regload Load Regulation(5) TJ = +25°CIO = 5.0mA to 1.5A – 10 160 mV IO = 250mA to 750mA – 5.0 80 IQ Quiescent Current TJ = +25°C– 5.0 8.0 mA ∆IQ Quiescent Current Change IO = 5mA to 1.0A – 0.05 0.5 mA VI = 10.5A to 25V – 0.5 1.0 ∆VO/∆T Output Voltage Drift(6) IO = 5mA – -0.8 – mV/ °C VN Output Noise Voltage f = 10Hz to 100kHz, TA = +25°C– 52 – µV/Vo RR Ripple Rejection(6) f = 120Hz, VI = 11.5V to 21.5V 56 73 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C– 2 – V rO Output Resistance(6) f = 1kHz – 17 – m Ω ISC Short Circuit Current VI = 35V, TA = +25°C– 230 – mA IPK Peak Current(6) TJ = +25°C– 2.2 – A |
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