Nanopower EnergyHarvesting Power Supply纳米能源 收获电源.pdf

LTC3588-1 Nanopower Energy Harvesting Power Supply FEATURES DESCRIPTION n 950nA Input Quiescent Current (Output in ® The LTC 3588-1 integrates a low-loss full-wave bridge Regulation – No Load) rectifier with a high efficiency buck converter to form a n 450nA Input Quiescent Current in UVLO complete energy harvesting solution optimized for high n 2.7V to 20V Input Operating Range output impedance energy sources such as piezoelectric, n Integrated Low-Loss Full-Wave Bridge Rectifier solar, or magnetic transducers. An ultralow quiescent n Up to 100mA of Output Current current undervoltage lockout (UVLO) mode with a wide n Selectable Output Voltages of 1.8V, 2.5V, 3.3V, 3.6V hysteresis window allows charge to accumulate on an input n High Efficiency Integrated Hysteretic Buck DC/DC capacitor until the buck converter can efficiently transfer a n Input Protective Shunt – Up to 25mA Pull-Down at portion of the stored charge to the output. In regulation, VIN ≥ 20V the LTC3588-1 enters a sleep state in which both input and n Wide Input Undervoltage Lockout (UVLO) Range output qui