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KA7808ER Datasheet(PDF) 8 Page - Fairchild Semiconductor |
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KA7808ER Datasheet(HTML) 8 Page - Fairchild Semiconductor |
8 / 29 page 8 www.fairchildsemi.com KA78XXE/KA78XXAE Rev. 1.0. 2 Electrical Characteristics (KA7812E/KA7812ER) (Continued) Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 19V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified. Notes: 11. 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. 12. These parameters, although guaranteed, are not 100% tested in production. Symbol Parameter Conditions KA7812E/ER Unit Min. Typ. Max. VO Output Voltage TJ = +25°C 11.5 12 12.5 V 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 14.5V to 27V 11.4 12 12.6 Regline Line Regulation(11) TJ = +25°CVI = 14.5V to 30V – 10 240 mV VI = 16V to 22V – 3.0 120 Regload Load Regulation(11) TJ = +25°CIO = 5mA to 1.5A – 11 240 mV IO = 250mA to 750mA – 5.0 120 IQ Quiescent Current TJ = +25°C– 5.1 8.0 mA ∆IQ Quiescent Current Change IO = 5mA to 1.0A – 0.1 0.5 mA VI = 14.5V to 30V – 0.5 1.0 ∆VO/∆T Output Voltage Drift(12) IO = 5mA – -1 – mV/ °C VN Output Noise Voltage f = 10Hz to 100kHz, TA = +25°C– 76 – µV/Vo RR Ripple Rejection(12) f = 120Hz VI = 15V to 25V 55 71 – dB VDrop Dropout Voltage IO = 1A, TJ = +25°C– 2 – V rO Output Resistance(12) f = 1kHz – 18 – m Ω ISC Short Circuit Current VI = 35V, TA = +25°C– 230 – mA IPK Peak Current(12) TJ = +25°C– 2.2 – A |
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