LTC3330IUH#PBF

LINEAR TECHNOLOGY  LTC3330IUH#PBF  芯片, 降压升压直流/直流转换器, QFN-32

The is a Nanopower Buck-boost DC/DC Converter comes with an energy harvesting battery life extender. It integrates a high voltage energy harvesting power supply plus a DC/DC converter powered by a primary cell battery to create a single output supply. The energy harvesting power supply, consisting of an integrated full-wave bridge rectifier and a high voltage buck converter, harvests energy from piezoelectric, solar or magnetic sources. The primary cell input powers a buck-boost converter capable of operation down to 1.8V at its input. 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 essentially zero, thereby extending the life of the battery. The buck-boost powers VOUT only when harvested energy goes away. A low noise LDO post regulator and a super capacitor balancer are also integrated, accommodating a wide range of output storage configurations.

.

Zero battery IQ when energy harvesting source is available

.

750nA at No-load ultralow quiescent current

.

Low noise LDO post regulator

.

Integrated super capacitor balancer

.

Up to 50mA of output current

.

Integrated low loss full-wave bridge rectifier