Part Number: MIC47050YMT-EV
MIC47050YMT EVALUATION BOARD
- Refer to User Guide.
Overview
The MIC47050 is a high-speed, ultra-low dropout, dual-supply NMOS ULDO™ designed to take advantage of point-of-load applications that use multiple supply rails to generate a low-voltage, high-current power supply. The MIC47050 can source 500mA of output current while only requiring a 1μF ceramic output capacitor for stability. A 1.5% output voltage accuracy, low dropout voltage (44mV @ 500mA), and low ground current makes this device ideally suited for mobile applications.
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The MIC47050 evaluation board requires two power supplies, one to provide a minimum of 500mA to VIN and the other to provide the VBIAS voltage. The BIAS pin, requiring relatively light current, provides power to the control portion of the MIC47050. The input voltage range for the BIAS pin is 2.3V to 5.5V. To avoid VBIAS-to-VOUT dropout, the minimum VBIAS voltage should be 2.3V or 1.25V (typically) above VOUT, whichever is greater. The evaluation board is provided with a 0.1µF capacitor from BIAS-to-ground to help reduce high frequency noise from being injected into the control circuitry