LTC3108EGN#TRPBF

LTC3108EGN#TRPBF is a highly integrated DC/DC converter 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. Applications include remote sensors and radio power, surplus heat energy harvesting, HVAC systems, industrial wireless sensing, automatic metering, building automation, predictive maintenance.

• Logic controlled output, reserve energy output
• Power good indicator, uses compact step-up transformers
• Complete energy harvesting power management system
• No-load input current is 3mA typical at (TA = 25°C)
• VOUT quiescent current is 0.2µA typical at (VOUT = 3.3V, VOUT2-EN = 0V, TA = 25°C)
• LDO load regulation is 0.5% typical at (for 0mA to 2mA load, TA = 25°C)
• LDO dropout voltage is 100mV typical at (ILDO = 2mA, TA = 25°C)
• N-channel MOSFET on-resistance is 0.5 ohm typical at (C2 = 5V, TA = 25°C)
• Operating junction temperature range from -40°C to 125°C
• 16-lead plastic SSOP package

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