LTC3108-1: Ultralow Voltage Step-Up Converter and Power Manager Data Sheet8/27/2013399K
Features and Benefits
- Operates from Inputs of 20mV
- 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
- Power Good Indicator
- Uses Compact Step-Up Transformers
- Small 12-Lead (3mm × 4mm) DFN or 16-Lead SSOP Packages
The LTC3108-1 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.
|Output Voltage (Switcher)|
|LTC3108||Selectable 2.35V, 3.3V, 4.1V or 5V|
|LTC3108-1||Selectable 2.5V, 3V, 3.7V or 4.5V|
- Remote Sensors and Radio Power
- Surplus Heat Energy Harvesting
- HVAC Systems
- Industrial Wireless Sensing
- Automatic Metering
- Building Automation
- Predictive Maintenance
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
DC1582B-B: Demo Board for the LTC3108-1 Ultralow Voltage Step-Up Converter and Power Manager.
Documentation & Resources
R551 Reliability Data3/23/201825 K
DC1582B - Demo Manual6/17/2010333K
Practical Ambient Energy Harvesting for WSNs9/5/20171M
Practical Ambient Energy Harvesting for WSNs4/5/20171M
LTC3108 Video Product Brief10/15/2018
Tools & Simulations
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|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|LTC3108EDE-1#PBF||Material Declaration||Reliability Data||12-Lead DFN (4mm x 3mm w/ EP)|
|LTC3108EDE-1#TRPBF||Material Declaration||Reliability Data||12-Lead DFN (4mm x 3mm w/ EP)|
|LTC3108EGN-1#PBF||Material Declaration||Reliability Data||16-Lead SSOP (Narrow 0.15 Inch)|
|LTC3108EGN-1#TRPBF||Material Declaration||Reliability Data||16-Lead SSOP (Narrow 0.15 Inch)|
|LTC3108IDE-1#PBF||Material Declaration||Reliability Data||12-Lead DFN (4mm x 3mm w/ EP)|
|LTC3108IDE-1#TRPBF||Material Declaration||Reliability Data||12-Lead DFN (4mm x 3mm w/ EP)|
|LTC3108IGN-1#PBF||Material Declaration||Reliability Data||16-Lead SSOP (Narrow 0.15 Inch)|
|LTC3108IGN-1#TRPBF||Material Declaration||Reliability Data||16-Lead SSOP (Narrow 0.15 Inch)|
|Wafer Fabrication Data||R551 Reliability Data|
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