Power Management Switch ICs ROHM Power Management Switch ICs integrate a low ON-resistance MOSFET and multiple protection circuits on a single chip. The switch ICs offer low loss, high efficiency, and a stable and reliable operation. The Power Management Switch IC family includes 1-channel high side, 2-channel high side, load, and controller ICs for high-side NMOSFETs. The devices are ideal for power management in USB memory sticks, PC expansion modules, and other digital devices.