ANALOG DEVICES LTC3108EGN-1#PBF DC-DC Switching Regulator, Adjustable, 0.0045A Out, SSOP-16

LTC3108EGN-1#PBF 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. Its step-up topology operates from input voltages as low as 20mV. Using a small step-up transformer, the LTC3108-1 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 programmable to one of four fixed voltages for powering 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, and predictive maintenance.

• Logic controlled output, reserve energy output
• Power good indicator, uses compact step-up transformers
• No-load input current is 3mA typical at (using 1:100 transformer turns ratio; VIN = 20mV)
• VOUT quiescent current is 0.2µA typical at (VOUT = 3.7V, VOUT2-EN = 0V)
• LDO load regulation is 0.5% typical at (for 0mA to 2mA load)
• LDO dropout voltage is 100mV typical at (IVLDO = 2mA)
• VOUT current limit is 4.5mA typical at (VOUT = 0V)
• PGD pull-up resistance is 1Mohm typical at (TA = 25°C)
• VOUT2 current limit response time is 350ns typical at (TA = 25°C)
• Operating junction temperature range from -40°C to 125°C, 16-lead plastic SSOP package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party