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L7812ABV Datasheet(PDF) 11 Page - STMicroelectronics |
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L7812ABV Datasheet(HTML) 11 Page - STMicroelectronics |
11 / 17 page ELECTRICAL CHARACTERISTICS FOR L7818A (Vi = 27V, Io = 1 A, Tj = 0 to 125 oC (L7818AC), Tj = -40 to 125 oC (L7818AB) unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit Vo Output Voltage Tj =25 oC 17.64 18 18.36 V Vo Output Voltage Io = 5 mA to 1 A Po ≤ 15 W Vi =21 to 33 V 17.3 18 18.7 V ∆Vo* Line Regulation Vi =21 to 33 V Io = 500 mA Vi =24 to 30 V Vi =24 to 30 V Tj =25 oC Vi = 20.6 to 33 V Tj =25 oC 25 28 10 5 180 180 90 180 mV mV mV mV ∆Vo* Load Regulation Io = 5 mA to 1 A Io = 5 mA to 1.5 A Tj =25 oC Io = 250 to 750 mA 25 30 10 100 100 50 mV mV mV Id Quiescent Current Tj =25 oC4.5 6 6 mA ∆Id Quiescent Current Change Vi =21 to 33 V Io = 500 mA Vi =21 to 33 V Tj =25 oC Io = 5 mA to 1 A 0.8 0.8 0.5 mA mA mA SVR Supply Voltage Rejection Vi = 22 to 32 V f = 120 Hz Io = 500 mA 57 dB Vd Dropout Voltage Io =1 A Tj =25 oC2 V eN Output Noise Voltage B = 10Hz to 100KHz Tj =25 oC10 µV/Vo Ro Output Resistance f = 1KHz 19 m Ω Isc Short Circuit Current Vi =35 V Tamb =25 oC0.2 A Iscp Short Circuit Peack Current Tj =25 oC2.2 A ∆Vo ∆T Output Voltage Drift -1 mV/ oC * 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. L7800AB/AC 11/17 |
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