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LTC3108

Analog Devices
Part Number LTC3108
Manufacturer Analog Devices
Description Ultralow Voltage Step-Up Converter and Power Manager
Published Aug 29, 2023
Detailed Description LTC3108 Ultralow Voltage Step-Up Converter and Power Manager FEATURES nn Operates from Inputs of 20mV nn Complete Energ...
Datasheet PDF File LTC3108 PDF File

LTC3108
LTC3108

Overview
LTC3108 Ultralow Voltage Step-Up Converter and Power Manager FEATURES nn Operates from Inputs of 20mV nn Complete Energy Harvesting Power Management System nn Selectable VOUT of 2.
35V, 3.
3V, 4.
1V or 5V nn LDO: 2.
2V at 3mA nn Logic Controlled Output nn Reserve Energy Output nn Power Good Indicator nn Uses Compact Step-Up Transformers nn Small 12-Lead (3mm × 4mm) DFN or 16-Lead SSOP Packages APPLICATIONS nn Remote Sensors and Radio Power nn Surplus Heat Energy Harvesting nn HVAC Systems nn Industrial Wireless Sensing nn Automatic Metering nn Building Automation nn Predictive Maintenance All registered trademarks and trademarks are the property of their respective owners.
DESCRIPTION The LTC®3108 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.
The LTC3108 is functionally equivalent to the LTC3108-1 except for its unique fixed VOUT options.
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.
The LTC3108 is available in a small, thermally enhanced 12-lead (3mm × 4mm) DFN package and a 16-lead SSOP package.
TYPICAL APPLICATION Wireless Remote Sensor Application Powered From a Peltier Cell THERMOELECTRIC GENERATOR ++ 1:100 220µF 20mV TO 500mV 1nF 330pF C1 VSTORE 5V + ...


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