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ADP3330ART-25 Datasheet(PDF) 10 Page - Analog Devices |
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ADP3330ART-25 Datasheet(HTML) 10 Page - Analog Devices |
10 / 12 page ADP3330 –10– REV. A APPLICATION CIRCUITS Crossover Switch The circuit in Figure 24 shows how two ADP3330s can be used to form a mixed supply voltage system. The output switches between two different levels selected by an external digital input. Output voltages can be any combination of voltages from the Ordering Guide of the data sheet. ADP3330-3.6 ADP3330-2.5 + OUT IN SD GND + IN OUT SD GND C1 1.0 F C2 0.47 F VOUT = 3.6V/2.5V VIN = 3.85V TO 12V OUTPUT SELECT 3V 0V LOGIC SUPPLY Figure 24. Crossover Switch Higher Output Current The ADP3330 can source up to 200 mA at room temperature without any heatsink or pass transistor. If higher current is needed, an appropriate pass transistor can be used, as in Figure 25, to increase the output current to 1 A. ADP3330-3 OUT IN SD GND + VIN = 4.5V TO 8V MJE253* VOUT = 3V@1A C1 100 F C2 100 F *AAVID531002 HEAT SINK IS USED ERR R1 50 Figure 25. High Output Current Linear Regulator |
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