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Analog Devices LTC3330 | Demoboard DC2048A
Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Life Extender
Overview
| Topology | Buck-Boost Converter |
| Input voltage | 3-18 V |
| Output 1 | 5.15 V |
| IC revision | B |
Description
Demonstration Circuit 2048A is a nanopower buckboost DC/DC with energy harvesting battery life extender featuring the LTCR3330. The LTC3330 integrates a high voltage energy harvesting power supply plus a DC/DC converter powered by a primary cell battery to create a single output supply for alternative energy applications. The energy harvesting power supply, consisting of an integrated low-loss full-wave bridge with a high voltage buck converter, harvests energy from piezoelectric, solar or magnetic sources. The primary cell input powers a buck-boost converter capable of operating down to 1.8V at its input. Either DC/DC converter can deliver energy to a single output. The buck operates when harvested energy is available, reducing the quiescent current drawn on the battery to essentially zero. The buck-boost takes over when harvested energy goes away.A low noise LDO post regulator and a supercapacitor balancer are also integrated, accommodating a wide range of output storage configurations.Voltage and current settings for both input and outputs are programmable via pin-strapped logic inputs.The LTC3330EUH is available in a 5mm × 5mm 32-lead QFN surface mount package with exposed pad.
Features
- Dual Input, Single Output DC/DCs with Input Prioritizer
- Energy Harvesting Input: 3.0V to 19V Buck DC/DC
- Primary Cell Input: 1.8V to 5.5V Buck-Boost DC/DC
- Zero Battery IQ When Energy Harvesting Source is Available
- Ultralow Quiescent Current: 750nA at No-Load
- Low Noise LDO Post Regulator
- Integrated Supercapacitor Balancer
- Up to 50mA of Output Current
- Programmable DC/DC and LDO Output Voltages, Buck UVLO, and Buck-Boost Peak Input Current
- Integrated Low Loss Full-Wave Bridge Rectifier
- Input Protective Shunt: Up to 25mA at VIN ≥ 20V
- 5mm × 5mm QFN-32 Package
Typical applications
- Wireless HVAC Sensors and Security Devices
- Solar Powered Systems with Primary Cell Backup
- Energy Harvesting
- Mobile Asset Tracking
More information
Products
| Order Code | Datasheet | Downloads | Status | Product series | L (mm) | f (mm) | Pins (Value) (pcs) | Rows | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 62000311121 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Pin Header | 6 | – | 3 | Single | Pin Header | Straight | 2 | Bag | |
 | 62000411121 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Pin Header | 8 | – | 4 | Single | Pin Header | Straight | 2 | Bag | |
 | 702936000 | SPEC | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WA-SNSR Self-Retaining Spacer | 15.9 | 4.8 | – | – | – | – | – | – | |
 | 60800213421 | SPEC | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm Jumper with Test Point | – | – | 2 | – | Jumper | – | 3 | Bag |
| Order Code | Datasheet | |
|---|---|---|
| 62000311121 | SPEC |
| 62000411121 | SPEC |
| 702936000 | SPEC |
| 60800213421 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Downloads | Status | Product series | L (mm) | f (mm) | Pins (Value) (pcs) | Rows | Gender | Type | IR (A) | Packaging | Samples |
|---|