LTC3108
RECOMMENDED FOR NEW DESIGNSUltralow Voltage Step-Up Converter and Power Manager
- Part Models
- 8
- 1ku List Price
- Starting From $4.48
Overview
- Operates from Inputs of 20mV
- Complete Energy Harvesting Power
Management System
- Selectable VOUT of 2.35V, 3.3V, 4.1V or 5V
- LDO: 2.2V at 3mA
- Logic Controlled Output
- Reserve Energy Output
The LTC3108 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.
| Output Voltage (Switcher) | |
| LTC3108 | Selectable 2.35V, 3.3V, 4.1V or 5V |
| LTC3108-1 | Selectable 2.5V, 3V, 3.7V or 4.5V |
Applications
- Remote Sensors and Radio Power
- Surplus Heat Energy Harvesting
- HVAC Systems
- Industrial Wireless Sensing
- Automatic Metering
- Building Automation
- Predictive Maintenance
Documentation
Data Sheet 1
User Guide 3
Technical Articles 3
Video 1
Press Release 1
Product Selector Card 2
Brochure 2
Book & eBook 1
Analog Dialogue 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC3108EDE#PBF | 12-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC3108EDE#TRPBF | 12-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC3108EGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3108EGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3108IDE#PBF | 12-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC3108IDE#TRPBF | 12-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC3108IGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3108IGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 3, 2024 - 24_0235 (QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking |
||
| LTC3108EGN#PBF | PRODUCTION | |
| LTC3108EGN#TRPBF | PRODUCTION | |
| LTC3108IGN#PBF | PRODUCTION | |
| LTC3108IGN#TRPBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0235 Epoxy Change from Henkel 8290 to 8290A for GN Package |
||
| LTC3108EGN#PBF | PRODUCTION | |
| LTC3108EGN#TRPBF | PRODUCTION | |
| LTC3108IGN#PBF | PRODUCTION | |
| LTC3108IGN#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0066 Laser Top Mark for 16QSOP Assembled in ADPG [PNG] |
||
| LTC3108EGN#PBF | PRODUCTION | |
| LTC3108EGN#TRPBF | PRODUCTION | |
| LTC3108IGN#PBF | PRODUCTION | |
| LTC3108IGN#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Supervisory Circuits & Reset ICs 1 | ||
| LTC2935 | PRODUCTION | Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LTC3108
- LTC3108-1
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
