Low-Dropout Regulators (Ask The Applications Engineer—37)

Voltage regulators provide stable outputs independent of line voltage, load impedance, temperature, and time. Low-dropout regulators (LDOs) can maintain regulation with a small difference between supply voltage and load voltage. This article introduces basic topologies of LDOs, and provides tips for ensuring stable operation. It also discusses ADI's LDOs, which offer a flexible approach to maintaining dc- and dynamic stability.

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