LTC3108EGN#PBF

LINEAR TECHNOLOGY  LTC3108EGN#PBF  芯片, 升压转换器/电源管理器, 4.5mA, 16SSOP

The is a 400mA ultralow voltage Step-up Converter and Power Manager ideal for harvesting and managing surplus energy from extremely low input voltage sources such as TEGs thermoelectric generators, thermopiles and small solar cells. The step-up topology operates from input voltages as low as 20mV. Using a small step-up transformer, the LTC3108 provides a complete power management solution for wireless sensing and data acquisition. The 2.2V LDO powers an external microprocessor, while the main output is programmed to one of four fixed voltages to power a wireless transmitter or sensors. The power good indicator signals that the main output voltage is within regulation. A second output can be enabled by the host. A storage capacitor provides power when the input voltage source is unavailable. Extremely low quiescent current and high efficiency design ensure the fastest possible charge times of the output reservoir capacitor.

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Operates from inputs of 20mV

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Complete energy harvesting power

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Management system Selectable VOUT of 2.35, 3.3, 4.1 or 5V

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LDO 2.2V at 3mA

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Logic controlled output

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Reserve energy output

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Power good indicator

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Uses compact step-up transformers