TMI7321 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

TMI7321 product

TMI7321

Voltage Regulators - DC DC Switching Regulators

IEEE 802.3afPoE PD13 WFlyback controllerBuck controllerQFN-28

TMI7321 integrates an IEEE 802.3af PoE PD interface and a 13 W DCM flyback or buck controller in a QFN4x5-28 package.

Best for

  • IEEE 802.3af PoE powered devices
  • 13 W security cameras
  • VoIP phones and WLAN access points

Avoid if

  • Applications requiring more than 13 W PoE power
  • Designs requiring confirmed IEEE 802.3at Type 2 operation

Check before use

  • Topology selection and MODE connection
  • Transformer or buck inductor sizing
  • Output regulation at light or no load in flyback mode
  • PD input transient protection

Key specifications

PoE interface
IEEE 802.3af
Supported power
13 W
Converter modes
Flyback or buck
Switching MOSFET
160 V integrated
Package
QFN4x5-28

Compliance & Environment

RoHS
RoHS compliant
REACH
-
MSL
MSL 3
ECCN
-
HTSUS
-

Application

PoE security camerasVoIP phonesWLAN access pointsPoE IoT devices

CAD Models

Download ECAD models for TMI7321: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

TMI7321 is an integrated IEEE 802.3af powered-device interface with a 13 W DC/DC controller. It includes detection, classification, hot-swap inrush control, maintain-power-signature support, and a 160 V switching MOSFET.