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LM7805CT 데이터시트(PDF) 8 Page - Fairchild Semiconductor |
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LM7805CT 데이터시트(HTML) 8 Page - Fairchild Semiconductor |
8 / 28 page 8 www.fairchildsemi.com LM78XX/LM78XXA Rev. 1.0 Electrical Characteristics (LM7812) (Continued) Refer to the test circuits. -40°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 Min. Typ. Max. Unit VO Output Voltage TJ = +25°C 11.5 12.0 12.5 V 5mA ≤ IO ≤ 1A, PO ≤ 15W, VI = 14.5V to 27V 11.4 12.0 12.6 Regline Line Regulation(11) TJ = +25°C VI = 14.5V to 30V – 10.0 240 mV VI = 16V to 22V – 3.0 120 Regload Load Regulation(11) TJ = +25°C IO = 5mA to 1.5A – 11.0 240 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 1A – 0.1 0.5 mA VI = 14.5V to 30V – 0.5 1.0 ∆VO/∆T Output Voltage Drift(12) IO = 5mA – -1.0 – mV/°C VN Output Noise Voltage f = 10Hz to 100kHz, TA = +25°C – 76.0 – µV/VO RR Ripple Rejection(12) f = 120Hz, VI = 15V to 25V 55.0 71.0 – dB VDROP Dropout Voltage IO = 1A, TJ = +25°C – 2.0 – V rO Output Resistance(12) f = 1kHz – 18.0 – 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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