The AP65101 and AP65201 buck converters are designed for low-voltage regulation, especially in distributed power architectures, and operate from 4.5 to 16V inputs while delivering adjustable output voltage from 0.8V up to 80% of VIN. A low quiescent supply current and integrated high- and low-side switches with low Rds(on) both help to reduce power loss.
The high level of integration and minimal need for external components combined with the small-footprint TSOT26 package provide valuable cost and circuit board space savings. Current-mode operation enables fast transient response and easy loop stabilisation, while programmable soft-start and a 500kHz switching frequency contribute to ease of use.
Protection features, including under-voltage lockout, over-current, over-voltage and over-temperature, help prevent damage to downstream components and stress-induced premature component failure. The device enable pin also has a high voltage tolerance of up to 6V.
The AP65101 is priced at $0.21 each and the AP65201 is priced at $0.25 each, in 1,000 unit quantities.
