MIC23451-AAAYFL EV: 1.2, 1.5, and 1.8V @ 2A, 2.7 ~ 5.5Vin

This board allows the customer to evaluate the MIC23451, a fully integrated, triple-output, 2A, 3 MHz switching regulator that features HyperLight Load® mode and Power Good output indicators. The MIC23451 is highly efficient throughout the output current range, drawing just 24 µA of quiescent current for each channel in operation. The tiny 4 mm x 4 mm DFN package saves precious board space and requires few external components.

The MIC23451 provides accurate output voltage regulation under the most demanding conditions, with each channel responding extremely quickly to a load transient with exceptionally small output voltage ripple.

This board needs a single 20 W bench power source adjustable from 2.7 to 5.5 V. The loads can be either active (electronic load) or passive (resistor), and must be able to dissipate 10 W. It is ideal, but not essential, to have an oscilloscope available to view the circuit waveforms. The simplest tests require two voltage meters to measure input and output voltage. Efficiency measurements for a single channel require two voltage meters and two ammeters to prevent errors caused by measurement inaccuracies.

There is no reverse input protection on this board. Be careful when connecting the input source to make sure correct polarity is observed.