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UA7808CKCS Datasheet(PDF) 8 Page - Texas Instruments |
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UA7808CKCS Datasheet(HTML) 8 Page - Texas Instruments |
8 / 23 page R1 0.33 µF Input Output µA78xx 0.1 µF IO R2 V O + Vxx ) Vxx R1 ) I Q R2 A: The following formula is used when Vxx is the nominal output voltage (output to common) of the fixed regulator: OUT IN G −VO COM + − VI IL µA78xx +VO +V 0.1 µF 0.33 µF µA78xx μA7800 SERIES SLVS056O – MAY 1976 – REVISED AUGUST 2012 www.ti.com uA7824 Electrical Characteristics (continued) at specified virtual junction temperature, VI = 33 V, IO = 500 mA (unless otherwise noted) μA7824C PARAMETER TEST CONDITIONS TJ (1) UNIT MIN TYP MAX IO = 5 mA to 1.5 A 12 480 Output voltage regulation 25°C mV IO = 250 mA to 750 mA 4 240 Output resistance f = 1 kHz 0°C to 125°C 0.028 Ω Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1.5 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 170 μV Dropout voltage IO = 1 A 25°C 2 V Bias current 25°C 4.6 8 mA VI = 27 V to 38 V 1 Bias current change 0°C to 125°C mA IO = 5 mA to 1 A 0.5 Short-circuit output current 25°C 150 mA Peak output current 25°C 2.1 A APPLICATION INFORMATION Figure 2. Fixed-Output Regulator Figure 3. Positive Regulator in Negative Configuration (VI Must Float) Figure 4. Adjustable-Output Regulator 8 Submit Documentation Feedback Copyright © 1976–2012, Texas Instruments Incorporated |
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