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LM7812ACT Datasheet(PDF) 11 Page - Fairchild Semiconductor |
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LM7812ACT Datasheet(HTML) 11 Page - Fairchild Semiconductor |
11 / 23 page 11 www.fairchildsemi.com Electrical Characteristics (LM7809A) (Refer to the test circuits. 0 qC TJ 125qC, IO = 1A, VI = 15V, CI = 0.33PF, CO = 0.1PF, unless otherwise specified) Note 26: 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. Note 27: These parameters, although guaranteed, are not 100% tested in production. Parameter Symbol Conditions Min Typ Max Units Output Voltage VO TJ = 25qC 8.82 9.0 9.16 V IO = 5mA to 1A, PO d 15W, VI = 11.2V to 24V 8.65 9.0 9.35 Line Regulation Regline VI = 11.7V to 25V, IO = 500mA – 6.0 90.0 mV (Note 26) VI = 12.5V to 19V – 4.0 45.0 TJ = 25qCVI = 11.5V to 24V – 6.0 90.0 VI = 12.5V to 19V – 2.0 45.0 Load Regulation Regload TJ = 25qC, IO = 5mA to 1.0mA – 12.0 100 mV (Note 26) IO = 5mA to 1mA – 12.0 100 IO = 250mA to 750mA – 5.0 50.0 Quiescent Current IQ TJ = 25qC– 5.0 6.0 mA Quiescent Current Change 'IQ IO = 5mA to 1A – – 0.5 mA VI = 12V to 25V, IO = 500mA – – 0.8 VI = 11.7V to 25V, TJ = 25qC– – 0.8 Output Voltage Drift (Note 27) 'VO/'TIO = 5mA – 1.0 – mV/ qC Output Noise Voltage VN f = 10Hz to 100KHz, TA = 25qC – 10.0 – PV/VO Ripple Rejection (Note 27) RR f = 120Hz, IO = 500mA, VI = 12V to 22V – 62.0 – dB Dropout Voltage VDROP IO = 1A, TJ = 25qC– 2.0 – V Output Resistance (Note 27) rO f = 1KHz – 17.0 – m : Short Circuit Current ISC VI = 35V, TA = 25qC– 250 – mA Peak Current (Note 27) IPK TJ =25qC– 2.2 – A |
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