Seiko Instruments has successfully developed a charge pump IC that can be boosted at + 0.3V. Imagine using with existing DC-DC converters. Being able to operate at low voltages makes it easy to harness the faint energy of everyday life such as lighting and body temperature. July 2005 began to supply samples. Sample price is 200 yen (about 15 yuan). Ordinary DC-DC converter to be in the input voltage reaches + 0.9V above to start working, so less than 0.9V can not step-up. The development of the charge pump IC is a "new concept boost IC," the first +0.3 V input voltage boost up to +2.4 V, and then input to the DC-DC converter. After the DC-DC converter is started, the charge pump IC will stop working to reduce the power consumption. Since it is assumed to be used to receive the output power of the solar cell originating from one cell, the input voltage is set to + 0.3V. In order to reduce the input voltage, the use of low-voltage work can be completely depleted SOI backplane, while sacrificing efficiency. The general efficiency of the charge pump IC is about 60%, while the development of the IC efficiency is about 30%.
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