Feature:
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 of 1.8V, 2.5V, 3.3V, 3.6V
High-Efficiency Integrated Hysteretic Buck DC/DC
Input Protective Shunt – Up to 25mA Pull-Down at VIN ≥ 20V
Wide Input Undervoltage Lockout (UVLO) Range
Applications:
Piezoelectric Energy Harvesting
Electro-Mechanical Energy Harvesting
Wireless HVAC Sensors
Mobile Asset Tracking
Tire Pressure Sensors
Battery Replacement for Industrial Sensors
Remote Light Switches
Standalone Nanopower Buck RegulatorDescription:
The LTC3588-1 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. An ultralow quiescent current under voltage lockout (UVLO) mode with a wide hysteresis window allows charge to accumulate on an input capacitor until the buck the converter can efficiently transfer a portion of the stored charge to the output. In regulation, the LTC3588-1 enters a sleep state in which both input and output quiescent currents are minimal. The buck converter turns on and off as needed to maintain regulation.
Four output voltages, 1.8V, 2.5V, 3.3V and 3.6V, are pin selectable with up to 100mA of continuous output current; however, the output capacitor may be sized to service a higher output current burst. An input protective shunt set at 20V enables greater energy storage for a given amount of input capacitance.
Schematic: Click here to open
Package includes:
1 x Module
