Key facts
- Brand
- Linear Technology
- Model
- LTC4269
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-05
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Linear Technology LTC4269 PoE+ PD Controller Application Note
The document introduces the Linear Technology LTC4269-1 and LTC4269-2 integrated PD controller ICs designed to meet the requirements of the IEEE 802.3at (PoE+) standard, which supports up to 25.5W power delivery. These devices integrate front-end PD control with high-performance DC/DC controllers for either synchronous flyback or forward converter topologies.
Read onlineLinear Technology LTC4269 specifications
| Power Dissipation per Port | 130mW at 600mA |
|---|---|
| Compliance Standard | IEEE 802.3at Type 1 and 2 |
| PD Power Support | Up to 25.5W |
All Linear Technology LTC4269 documents by type
How to use the product for one specific task, with worked examples.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum power output supported by the PoE+ standard described?
The IEEE 802.3at standard raises the available PD power to 25.5W.
From: Linear Technology LTC4269 PoE+ PD Controller Application Note
What is the maximum output current for the LTC4269-1 based synchronous flyback converter?
The circuit is capable of a 5V output voltage at 5A.
From: Linear Technology LTC4269 PoE+ PD Controller Application Note
What is the maximum PD power supported by the LTC4269 family?
The family supports up to 25.5W of PD power compliant with IEEE 802.3at.
Is the LTC4269 backward compatible with older standards?
Yes, it is fully backward compatible with IEEE 802.3af.