Key parametrics for the BOM engineer
The MAX1685EEE+T: This is a step-down (buck) regulator with a single positive output, adjustable from 1.25 V up to 14 V, or fixed at 3.3 V via the internal reference — the output type is listed as Adjustable (Fixed). Switching at 600 kHz, the internal synchronous rectifier eliminates the external Schottky catch diode, saving board space and improving efficiency at moderate loads — the inductor and output capacitor values shrink accordingly.
