The LTC3425 is a 4‑phase synchronous boost DC‑DC converter offering up to 95% efficiency and 3 A continuous output.
About this manual
The LTC3425 is a synchronous, 4‑phase boost converter designed for point‑of‑load regulation. It features programmable output voltage (2.4 V‑5.25 V), adjustable current limit, burst‑mode operation, and very low quiescent current.
The device is supplied in a thermally enhanced 32‑lead QFN package (5 mm × 5 mm) and includes internal MOSFET switches and synchronous rectifiers. Typical performance includes up to 95% efficiency, 3 A continuous output, and an input range of 0.5 V‑4.5 V.
What's inside
- Features
- Parameter Conditions
- Electrical Characteristics
- Typical Performance Characteristics
- Pin Descriptions
- Package Description
- Application Examples
- Absolute Maximum Ratings
Specifications
| Maximum Continuous Output Current | 3 A |
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| Efficiency | up to 95 % |
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| Input Voltage Range | 0.5 V – 4.5 V |
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| Adjustable Output Voltage | 2.4 V – 5.25 V |
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| Package | 5 mm × 5 mm 32‑lead QFN |
Frequently asked questions
What is the maximum continuous output current of the LTC3425?
The LTC3425 can deliver up to 3 A of continuous output current.
What efficiency can be achieved with the LTC3425?
The converter can reach up to 95 % efficiency under typical conditions.
What input voltage range does the LTC3425 support?
It operates from 0.5 V to 4.5 V input.
What output voltage range is adjustable on the LTC3425?
The output voltage can be set between 2.4 V and 5.25 V.