Intersil focuses on automotive sector

The ISL78228 is designed to provide regulated power for use in remote safety cameras, infotainment systems, control modules and other space constrained automotive applications. The device delivers up to 800mA continuous current from each of its two independent outputs. Its 2.75 to 5.5V input voltage range permits powering from common 3.3 and 5V automotive supplies. The internal current mode compensation provides fast transient response and allows for 100% duty cycle operation for low dropout. This also simplifies circuit design by eliminating the need for external compensation components. The ISL78228 operates at 2.25MHz switching frequency (and can be synchronised up to 4MHz) allowing the use of small, low cost inductors and capacitors. Each channel is optimised for generating an output voltage as low as 0.6V. It also features an integrated 2ms digital soft start and Power Good output. The enable pin facilitates power sequencing and the soft stop function ensures output capacitors are discharged when switching to shutdown. Its low 30uA quiescent current minimises standby power consumption. The compact package and high (>90%) efficiency makes the ISL78228 an ideal design choice for in car compact regulated power applications.