LTC4257IDD#TRPBF
Analog Devices Inc.
IEEE 802.3af PD Power over Ethernet Interface Controller Features: Complete Power Interface Port for IEEE 802.3af® Powered Devices (PDs) Onboard 100V, 400mA Power MOSFET Precision Input Current Limit Onboard 25k Signature Resistor Programmable Classification Current (Class 0-4) Undervoltage Lockout Smart Thermal Protection Power Good Signal Available in 8-Pin SO and Low Profile (3mm × 3mm) DFN Packages
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