Power Management ICs

November 15, 2013

ON Semiconductor (Phoenix, AZ) has introduced two new AEC Qualified ICs optimized for automotive powertrain and in-cabin deployment. Running off a 2V to 44V input voltage, the NCV8876 non-synchronous boost controller with automatic wake up and shutdown functions is designed to supply a minimum output voltage during start-stop conditions in order to counteract any sag in the vehicle’s battery voltage. The NCV8876 is enabled when the supply voltage drops below 7.2 V, then boost operation is initiated once this voltage goes under 6.8 V, with the IC driving an external N-channel MOSFET. The NCV896530 2.1 megahertz (MHz) switching frequency dual channel step-down DC-DC converter is targeted at the sophisticated driver assistance systems now being incorporated into modern vehicles. Both of its channels are externally adjustable (covering 0.9 V to 3.3 V) and can source currents up to 1600 mA. Synchronous rectification enables the device to offer enhanced system efficiency.