Lowest noise SOT-23 LDOs have 20μA quiescent current, 20μVRMS noise
Todd Owen and Jim Williams
Abstract
A family of low noise, low dropout regulators is described.
Keywords
Voltage regulator
Low noise
Low dropout
LT1671
LT1672
LT1673
Telecom and instrumentation applications often require a low noise voltage regulator. Frequently this requirement coincides with the need for low regulator dropout and small quiescent current. LTC recently introduced a family of devices to address this problem. Table 166.1 shows a variety of packages, power ranges and features in three basic regulator types. The SOT-23 packaged LT1761 has only 20μVRMS noise with 300mV dropout at 100mA. Quiescent current is only 20μA.
Table 166.1
Low Noise LDO ...
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