The demonstration board can be used to evaluate the MIC47100. The MIC47100, a 1A, high speed, low dropout linear regulator, utilizes a split supply input to regulate low output voltages.
It is offered in an 8-pin power MSOP and 2mm x 2mm MLF® packages. The MIC47100 is also offered in fixed and adjustable output versions.
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The MIC47100 requires two power supplies, one to provide a minimum of 1A to the VIN and the other to provide VBIAS current. VBIAS, requiring relatively light current, provides power to the control portion of the MIC47100. Bypassing on the BIAS pin is recommended to improve performance of the regulator during line and load transients. Small ceramic capacitors from VBIAS-to-ground help reduce high frequency noise from being injected into the control circuitry from the bias and are good design practices.