One thing about analog integrated circuits (ICs) is they tend to stick around. The low-dropout (LDO) regulator first came to widespread attention in 1977, when National Semiconductor’s Bob Dobkin published an article about the adjustable version in Electronic Design magazine. Back then, digital technology was pretty basic: Intel’s 8085 was the microprocessor du jour, with 6500 transistors, a screaming 3.0-MHz clock, and less processing power than a modern-day
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