Key facts
- Brand
- Linear Technology
- Model
- LTC4267
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-08
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Linear Technology LTC4267 Power over Ethernet PD Interface Datasheet
The LTC4267 combines an IEEE 802.3af‑compliant Power‑over‑Ethernet (PoE) PD interface with a current‑mode switching regulator. It provides a complete power solution for PD applications, including dual‑level inrush current limiting, programmable classification current (Class 0‑4), and thermal overload protection.
The document lists absolute maximum ratings, electrical characteristics, pin assignments, package dimensions, and typical performance curves. It also includes recommended solder‑pad layout for the 16‑lead SSOP and DFN packages and example application circuits for IP phones, wireless access points and security cameras.
All Linear Technology LTC4267 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum operating voltage of the LTC4267?
The device can operate with a supply voltage up to 100 V on the Vportn pin.
From: Linear Technology LTC4267 Power over Ethernet PD Interface Datasheet
Which pin provides the Power Good signal?
Pin 11 (PWRGD) is the Power Good output, open‑drain.
From: Linear Technology LTC4267 Power over Ethernet PD Interface Datasheet