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MCP1661 датащи(PDF) 7 Page - Microchip Technology |
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MCP1661 датащи(HTML) 7 Page - Microchip Technology |
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7 / 34 page ![]() 2014-2015 Microchip Technology Inc. DS20005315B-page 7 MCP1661 Note: Unless otherwise indicated, VIN =3.3V, IOUT =20mA, VOUT =12V, CIN =COUT = 10 µF, X7R ceramic, L= 4.7 µH, TA = 25°C, 5-lead SOT-23 package. FIGURE 2-13: Enable Threshold vs. Input Voltage. FIGURE 2-14: N-Channel Switch RDSON vs. VIN. FIGURE 2-15: 12.0V VOUT Light Load PWM Mode Waveforms. FIGURE 2-16: High Load PWM Mode Waveforms. FIGURE 2-17: 12.0V Start-Up by Enable. FIGURE 2-18: 12.0V Start-Up (VIN =VENABLE). 0 10 20 30 40 50 60 70 80 90 100 2.3 2.6 2.9 3.2 3.5 3.8 4.1 4.4 4.7 5 Input Voltage (V) EN V IL EN V IH I OUT = 1 mA 0 0.2 0.4 0.6 0.8 1 2.6 2.9 3.2 3.5 3.8 4.1 4.4 4.7 5 Input Voltage (V) IOUT =100 mA 2 µs/div VOUT 20 mV/div, AC Coupled 20 MHz BW IOUT =5 mA VSW 5V/div IL 100 mA/div 1 µs/div VOUT 50 mV/div, AC Coupled 20 MHz BW IOUT =100 mA VSW 5V/div IL 400 mA/div VOUT 3V/div IOUT =15 mA VEN 3V/div IL 300 mA/div 500 µs/div VIN 3V/div VOUT 3V/div IOUT =15 mA VSW 5V/div VIN 3V/div 500 µs/div |
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