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LTC3108-1

Linear Technology
Part Number LTC3108-1
Manufacturer Linear Technology
Description Ultralow Voltage Step-Up Converter and Power Manager
Published Jun 29, 2010
Detailed Description LTC3108-1 Ultralow Voltage Step-Up Converter and Power Manager Features n Operates from Inputs of 20mV n Complete Ene...
Datasheet PDF File LTC3108-1 PDF File

LTC3108-1
LTC3108-1

Overview
LTC3108-1 Ultralow Voltage Step-Up Converter and Power Manager Features n Operates from Inputs of 20mV n Complete Energy Harvesting Power Management System - Selectable VOUT of 2.
5V, 3V, 3.
7V or 4.
5V - LDO: 2.
2V at 3mA - Logic Controlled Output - Reserve Energy Output n Power Good Indicator n Uses Compact Step-Up Transformers n Small 12-Lead (3mm × 4mm) DFN or 16-Lead SSOP Packages Applications n Remote Sensors and Radio Power n Surplus Heat Energy Harvesting n HVAC Systems n Industrial Wireless Sensing n Automatic Metering n Building Automation n Predictive Maintenance L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Description The LTC®3108-1 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 LTC3108-1 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 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 LTC3108-1 is functionally equivalent to the LTC3108 except for its unique fixed VOUT options.
The LTC3108-1 is available in a small, thermally enhanced 12-lead (3mm × 4mm) DFN package and a 16-lead SSOP package.
Typical Application THERMOELECTRIC GENERATOR ++ 20mV TO 500mV...


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