ANALOG DEVICES DC1459B-B

DC1459B-B is a demo board for the LTC3588-2 piezoelectric energy harvesting power supply with 14V minimum VIN. The LTC3588 integrates a low-loss full-wave bridge with a high-efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers. An ultralow quiescent current undervoltage lockout mode with a wide hysteresis window allows charge to accumulate on an input capacitor until the buck converter can efficiently transfer a portion of the stored charge to the output. Four output voltages are pin selectable with up to 100mA of continuous output current. A power good comparator produces a logic high referenced to VOUT on the PGOOD pin when the converter reaches the programmed VOUT, signalling that the output is in regulation.