Stability in High Speed Linear LDO Regulators
In today’s world of high-speed, high-power processors, high-speed linear LDO regulators place heavy demands on the design of the power supply for these devices. There is the requirement of regulation down to low voltages with large currents that must have response times in the microseconds for changing loads. The lower voltage levels also demand that the ‘noise’ on the output be extremely small.
This paper presents basic steps in designing a linear LDO regulator based on stability and response, and provides guidance for selecting components.
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