Silego Technology has announced a family of GreenFET 2 "GFET2" Dual Channel 17MOhm MOSFET load switches which are rated up to 4.5A per channel. The SLG59M237 and SLG59M247 are capable of switching 1 to 5V power rails. The GFET2 integrated MOSFET process enables a high performance level in standard TDFN plastic packages for load switching applications. The devices are targeted at a range of applications including servers, routers, switches, industrial equipment, set-top boxes, game consoles, tablets, notebooks, smart phones and automotive. They can be used where there is a need to soft switch a power rail between 1 to 5V with a max current rating below 4.5A. The CMOS level on pin allows direct connection to most ASICs as the device will turn on with any voltage above 1.2V in a smooth fashion. An external capacitor may be used to adjust the ramp rate of the power rail turn-on. Once the part is on, over-current limit and automatic thermal shutdown circuits provide added power rail and overall system protection often not present in discrete solutions. In addition, the parts contain an automatic power rail discharge option at power off. The switches consume <1µA when not actively switching. Active current consumption is less than 100µA. These energy saving features and low Rds(ON) allow Energy Star requirements to be more easily met.
