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MICROELETTRONICA
MICROELETTRONICA

... • Estimate the delay of a 10x inverter driving a 2x inverter at the end of the 5mm wire from the previous example. – R = 2.5 kW*mm for gates – Unit inverter: 0.36 mm nMOS, 0.72 mm pMOS 781 W 690 W Driver ...
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... technology makes it possible to vary the generated supply voltage dynamically under external control. While many CMOS circuits have always been capable of operating over a range of supply voltages, it is the recent progress in power supply circuits [21, 9] that has made feasible systems with dynamic ...
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Buck converter



A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.
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