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What kinds of linear-type local power supply ICs (linear regulators) exist?

There are series regulators (LDO, 3-terminal regulators, etc.) and shunt regulators. They can generate local power supply with smaller external parts count, low noise and high precision. But loss is large (poor efficiency). And only buck type is possible. Shunt regulators offer extremely poor efficiency, and thus they have tended not to be used in recent years.

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