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KA78XXE Datasheet(PDF) 8 Page - Fairchild Semiconductor |
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KA78XXE Datasheet(HTML) 8 Page - Fairchild Semiconductor |
8 / 26 page KA78XXE/KA78XXAE 8 Electrical Characteristics (KA7818E) (Continued) (Refer to test circuit, 0 °C < TJ < 125°C, IO = 500mA, VI =27V, CI= 0.33µF, CO=0.1µF, unless otherwise specified) Note: 1. 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. 2. These parameters, although guaranteed, are not 100% tested in production. Parameter Symbol Conditions KA7818E Unit Min. Typ. Max. Output Voltage VO TJ =+25 °C 17.3 18 18.7 V 5.0mA ≤ IO ≤1.0A, PO ≤15W VI = 21V to 33V 17.1 18 18.9 Line Regulation (Note1) Regline TJ =+25 °C VI = 21V to 33V - 15 360 mV VI = 24V to 30V - 5 180 Load Regulation (Note1) Regload TJ =+25 °C IO = 5mA to 1.5A - 15 360 mV IO = 250mA to 750mA - 5.0 180 Quiescent Current IQ TJ =+25 °C- 5.2 8.0 mA Quiescent Current Change ∆IQ IO = 5mA to 1.0A - - 0.5 mA VI = 21V to 33V - - 1 Output Voltage Drift (Note2) ∆VO/∆TIO = 5mA - -1 - mV/ °C Output Noise Voltage VN f = 10Hz to 100kHz, TA =+25 °C- 110 - µV/Vo Ripple Rejection (Note2) RR f = 120Hz VI = 22V to 32V 53 69 - dB Dropout Voltage VDrop IO = 1A, TJ=+25 °C - 2 - V Output Resistance (Note2) rO f = 1kHz - 22 - m Ω Short Circuit Current ISC VI = 35V, TA=+25 °C - 250 - mA Peak Current (Note2) IPK TJ =+25 °C- 2.2 - A |
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