Delivering up to 140 W of power and up to 8 A of output current at up to 96% efficiency, the PI3740 Cool-Power regulator features an input operating voltage range of 8 to 60 Vdc and a regulated output voltage range of 10 to 50 Vdc. Incorporating high-frequency zero-voltage switching (ZVS) technology, the regulator targets automotive, industrial, test automation, LED lighting, and battery charging applications.
The regulator’s operating voltage ranges enable a reduction in both the number of regulators and the number of power supply designs that must be designed, configured, manufactured, inventoried, and maintained. The PI3740 converter can be used in a range of applications that would otherwise require the use of several different alternative regulators having narrower operating voltage ranges. For example, a power supply incorporating a PI3740 can be designed to operate from, or charge, both a 12-V and a 24-V battery source. The buck-boost converters are capable of transitioning between buck mode and boost mode for applications in which the regulator input voltage varies above and below the output voltage.
The PI3740 integrates its controller, power switches, and support circuitry within a high-density, 10 x 14 x 2.5-mm System-in-Package. Additional features include: 1-MHz operation; parallel options; constant-voltage and constant-current (for LED lighting applications) operating modes; overvoltage, overtemperature, and overcurrent protection; –40°C to 115°C temperature range; and an integrated current sense amplifier and integrated general-purpose amplifier.
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