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SC431L Fiches technique(PDF) 7 Page - Semtech Corporation |
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SC431L Fiches technique(HTML) 7 Page - Semtech Corporation |
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7 / 10 page ![]() 7 2008 Semtech Corp. www.semtech.com POWER MANAGEMENT SC431L Small-Signal Gain and Phase Shift vs. Frequency Reference Impedance vs. Frequency Typical Characteristics (Cont.) Test Circuit - Small-Signal Gain and Phase Reference Impedance vs. Junction Temperature Stability Boundary Condition For Shunt Regulation vs. Cathode Current and Load Capacitance 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 -50 -25 0 25 50 75 100 125 150 TJ (°C) IZ = 0.1 to 100 mA VZ = VREF f < 1 kHz 0.01 0.1 1 10 100 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 f (Hz) TA = 25°C -20 -10 0 10 20 30 40 50 60 70 80 1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06 f (Hz) -630 -585 -540 -495 -450 -405 -360 -315 -270 -225 -180 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.001 0.01 0.1 1 10 CL (µF) TA = 25°C VZ = VREF VZ = 2V Stable Stable Test Circuit - Stability |
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