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Design considerations
- Provide high power input to 12 V with Hot swap functionality
- Avoid potential noise coupling signal integrity issue, which can be introduced by the 48 V rail running on motherboards
- For board level reliability and best performance we recommend LFPAK56 and LFPAK88 devices
- Better Rdson and body diode behaviour is important for efficiency and for conducted and radiated emissions
- Provide adequate ESD protection to minimize potential of damage from transient voltages
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Nexperia in action
PSMN075-100MSE, PSMN040-100MSE, PSMN4R8-100BSE MOSFETs referenced in Linear Technology's LTC4279 New PSE Controller datasheet are from our differentiated ASFETs for Hotswap and Soft Start / ASFETs for Power over Ethernet (PoE) portfolios.
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Let us help you with product and design questions
Contact our technical support desk for your technical questions.