A simple ultralow dropout regulator
Jim Williams
Abstract
Where low drop-out linear regulators are required, battery life can be significantly affected by the regulator's dropout performance. This chapter describes a simple circuit offering lower dropout voltage than any monolithic regulator, using the LT1123 regulator.
Keywords
LT1123
low dropout regulator
Switching regulator post regulators, battery powered apparatus, and other applications frequently require low drop-out linear regulators. Often, battery life is significantly affected by the regulator’s dropout performance. Figure 172.1’s simple circuit offers lower dropout voltage than any monolithic regulator. Dropout is below 50mV at 1A, increasing to only 450mV at ...
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