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LM7924CT Datasheet(PDF) 7 Page - Fairchild Semiconductor |
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LM7924CT Datasheet(HTML) 7 Page - Fairchild Semiconductor |
7 / 15 page LM79XX 7 Electrical Characteristics (LM7912) (Continued) (VI = -19V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2μF, CO =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. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage VO TJ = +25°C -11.5 -12 -12.5 V IO = 5mA to 1A, PO ≤ 15W VI = -15.5V to -27V -11.4 -12 -12.6 Line Regulation (Note1) ΔVO TJ = +25°C VI = -14.5V to -30V - 12 240 mV VI = -16V to -22V - 6 120 Load Regulation (Note1) ΔVO TJ = +25°C IO = 5mA to 1.5A -12 240 mV TJ = +25°C IO = 250mA to 750mA -4 120 Quiescent Current IQ TJ = +25°C- 3 6 mA Quiescent Current Change ΔIQ IO = 5mA to 1A - 0.05 0.5 mA VI = -14.5V to -30V - 0.1 1 Temperature Coefficient of VD ΔVo/ΔTIO = 5mA - -0.8 - mV/ °C Output Noise Voltage VN f = 10Hz to 100kHz TA = +25°C -200 - μV Ripple Rejection RR f = 120Hz ΔVI = 10V 54 60 - dB Dropout Voltage VD TJ = +25°C IO = 1A -2- V Short Circuit Current ISC TJ = +25°C, VI = -35V - 300 - mA Peak Current IPK TJ = +25°C- 2.2 - A |
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