LTC3588
Nanopower energy harvesting power supply
2.7V to 20V input operating voltage
Selectable output voltage 1.8V, 2.5V, 3.3V, 3.6V
950nA input quiescent current
surface mount
size 3mm x 3mm
 
LTC3331
Nanopower buck-boost DC/DC with energy harvesting battery charger
Dual input, single output DC/DCs with input prioritizer
Energy harvesting input 3.0 V to 19 V buck DC/DC
Battery Input: up to 4.2V buck-boost DC/DC
10mA shunt battery charger with programmable float voltages: 3.45V, 4.0V, 4.1V, 4.2V
Surface mount
Size 5mm x 5mm