LTC35881英文资料下载

LTC3588 集成了一个低损失全波桥式整流器和一个高效率降压型转换器，以造就一款专为高输出阻抗能源 (例如：压电换能器) 而优化的完整能量收集解决方案。一种具有一个宽迟滞窗口的超低静态电流欠压闭锁 (UVLO) 模式允许电荷在一个输入电容器上积聚，直到降压型转换器能够有效地将一部分存储电荷转移至输出为止。当处于调节模式时，LTC3588-1 将进入一种睡眠状态 (在该状态中，输入和输出静态电流都非常小)。降压型转换器根据需要接通和关断，以保持调节作用。

　　The LTC®3588-1 integrates a low-loss full-wave bridge rectifi er with a high effi ciency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers. An ultralow quiescent current undervoltage lockout （UVLO） mode with a wide hysteresis window allows charge to accumulate on an input capacitor until the buck converter can effi ciently 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.