The LTC3331IUH#PBF is a high voltage Energy Harvesting Power Supply plus a Buck-Boost DC/DC powered from a rechargeable battery to create a single output supply for alternative energy applications. The energy harvesting power supply, consisting of an integrated full-wave bridge rectifier and a high voltage buck DC/DC, harvests energy from piezoelectric, solar or magnetic sources. Either DC/DC converter can deliver energy to a single output. The buck operates when harvested energy is available, reducing the quiescent current draw on the battery to the 200nA required by the shunt charger, thereby extending the life of the battery. The buck-boost powers VOUT only when harvested energy is unavailable.Dual input, single output DC/DCs with input prioritizerBattery input - Up to 4.2V Buck-Boost DC/DC10mA Shunt battery charger with programmable float voltages (3.45, 4, 4.1 and 4.2V)Low battery disconnect950nA at no load Ultra Low quiescent currentIntegrated supercapacitor balancerUp to 50mA Output currentProgrammable DC/DC output voltage, buck UVLO and buck-boost peak input currentIntegrated low-loss full-wave bridge rectifierInput protective shunt - Up to 25mA at VIN >=20VGreen product and no Sb/Br应用无线, HVAC, 安全, 电源管理, 传感与仪器
