ON Premieres New NCP1570 Buck Controller

ON Semiconductor LLC (Phoenix, AZ) introduced its new NCP1570 eight-pin synchronous buck controller that provides a small, cost-effective power supply for computing applications that require low voltage (down to 1V) and a medium current level (up to 15A). The device is suitable for dc/dc converters in computing and telecommunication boards and as replacements for high-current, low-dropout regulators.

The NCP1570 features a fixed 200kHz internal oscillator, which reduces external components and board space usage. A one-percent-accurate 0.985V reference is used to generate an output voltage of 1V to 3.3V from a 5V input. With a 12V operating voltage, the NCP1570 is compatible for all standard computing applications. A synchronous V2 architecture delivers fast transient response (200 nanoseconds typical) to changes in load, and excellent line and load regulation. Integrated, high-current, low-side and high-side drivers can drive a variety of field-effect transistors while saving board space and cost.

The NCP1570 is available in a small SO-8 package. Pricing for the device is $0.82 per unit in 10,000-unit quantities.