This power supply circuit is based on the LTC3588-1 manufactured by Linear Technology and can be used in a variety of configurations.
The LTC3588-1 is a piezoelectric energy harvesting power supply IC that integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers.
LTC3588-1 can be configured to deliver four output voltages: 1.8V, 2.5V, 3.3V and 3.6V . In this table you can see how you need to configure the pins of the LTC3588-1 to obtain the specified voltage .
To select Low for D0 , D1 the pin must be connected to GND and if you need to select high for D0, D2 the pin must be connected to VIN2 . The maximum output current can be set up to 100mA .
As you can see in this power schematic circuit the design of power supply is very easy and require few external components .
A power supply circuit based on the LTC3588-1 IC offers many features like : 950nA Input Quiescent Current (Output in Regulation – No Load) , 450nA Input Quiescent Current in UVLO , 2.7V to 20V Input Operating Range , Integrated Low-Loss Full-Wave Bridge Rectifier , Up to 100mA of Output Current , Selectable Output Voltages , High Efficiency Integrated Hysteretic Buck DC/DC .
The LTC3588-1 IC can be used in many applications circuits like : Piezoelectric Energy Harvesting , Electro-Mechanical Energy Harvesting , Wireless HVAC Sensors , Mobile Asset Tracking , Tire Pressure Sensors , Battery Replacement for Industrial Sensors , Remote Light Switches .