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LM7808I Datasheet(PDF) 7 Page - Fairchild Semiconductor |
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LM7808I Datasheet(HTML) 7 Page - Fairchild Semiconductor |
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7 / 28 page  LM78XX (KA78XX, MC78XX) FIXED VOLTAGE REGULATOR (POSITIVE) LM7811/I/R/RI ELECTRICAL CHARACTERISTICS (Refer to test circuit, TMIN<TJ<TMAX, IO = 500mA, VI=18V, CI=0.33 µF, C O = 0.I µF, unless otherwise specified) * TMIN <TJ <TMAX LM78XXI/RI: TMIN= - 40 °C, T MAX = +125 °C LM78XX/R: TMIN= 0 °C, T MAX= +125 °C * Load and line regulation are specified at constant, junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. LM7811I LM7811 Min Typ Max Min Typ Max TJ =+25 °C 10.6 11 11.4 10.6 11 11.4 Output Voltage VO 5.0mA ≤ I O ≤1.0A, P D ≤15W VI = 13.5V to 26V VI= 14.5V to 26V 10.5 11 11.5 10.5 11 11.5 V VI = 13.5V to 25V 10 220 10 220 VI = 14V to 21V 3.0 110 3 110 IO = 5.0mA to 1.5A 12 220 12 220 IO = 250mA to 750mA 4 110 4 110 Quiescent Current IQ TJ =+25 °C 5.1 8 5.1 8 mA IO = 5mA to 1.0A 0.5 0.5 Quiescent Current Change ∆I Q VI = 13.5V to 29V 1.0 mA VI = 14.5V to 29V 1.0 Output Voltage Drift ∆V O/ ∆T IO = 5mA -1 -1 mV/ °C Output Noise Voltage VN f = 10Hz to 100Khz, TA =+25 °C 70 70 µV/V O Ripple Rejection RR f = 120Hz VI = 14V to 24V 55 71 55 71 dB Dropout Voltage VD IO = 1A, TJ=+25 °C 2 2 V Output Resistance RO f = 1KHz 18 18 m Ω Short Circuit Current ISC VI = 35V, TA=+25 °C 250 250 mA Peak Current IPK TJ =+25 °C 2.2 2.2 A Unit Line Regulation ∆V O ∆V O TJ =+25 °C TJ =+25 °C Load Regulation Characteristic Symbol Test Conditions mV mV |
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