World’s smallest 4A dual point of load regulator?

The SC286 combines two step down regulators, each with 15 preset output voltages controlled by four on chip voltage identification pins. According to the mixed signal and analogue semiconductor supplier, the device, which comes in a low profile 4 x 4 x 0.6mm package, enables an overall design footprint of less than 200mm². The SC286 supports output currents up to 4A per channel, along with a power conversion efficiency of up to 95%). It features low shutdown current (1µA typical) and automatic power save for high light load efficiency. Semtech says the device is suitable for powering a range of loads such as a/d converters, microcontrollers, dsps and digital asics in networking, communications, consumer, industrial and office automation equipment. "The SC286 enables designers to source one device for multiple sockets," said Alan Burchfield, senior product marketing manager for Semtech's Power Management Group. "A total of 15 different output voltages from each of two on chip regulators equates to 225 preset output voltage combinations controlled by one extremely small power management chip. This dramatically simplifies design, qualification and ongoing inventory management for our customers. It also helps them minimise overall system size even as they continue to add more and more functions. No other supplier comes close to matching two 4A regulators in such a small package." Burchfield noted that the SC286 further simplifies power supply design by integrating the regulator, loop compensation components, power mosfets and mosfet drivers on one chip. This eliminates the need for external loop stabilisation components and programming resistors.