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National Semiconductor Corporation announces its second-generation, digitally-programmable LP5552 PowerWise® energy management unit (EMU) and advanced power controller (APC2) intellectual property (IP) package for reducing power consumption in battery-powered handheld consumer products.  National's APC2 IP pairs with the LP5552 EMU to reduce the power consumption of high data-rate digital processors with frequency-scaling capability by up to 70%. The APC2 IP is compatible with Intelligent Energy Manager (IEM) frequency-scaling technology from ARM Ltd. National's LP5552 enables a digital processor to adaptively adjust its supply voltage to the minimum level needed, greatly reducing its power consumption. The LP5552 includes two adaptive-supply-voltage buck regulators for the processor cores and five additional programmable regulators. The linear regulators power the input/output (I/O) ring, oscillator and phase-locked loops (PLL) and embedded and external memories on low-power SoCs and can also power other auxiliary devices in the system. The PWI 2.0 interface controls the LP5552's functions for simple interfacing to the digital processor.

National Semiconductor Corporation
http://www.national.com