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LTC4267IGN-3#PBF - 

Power Over Ethernet (POE) Controller, -57V/3 mA, 300 kHz Switch/Clock, -36V UVLO Threshold, SSOP-16

LTC4267IGN-3#PBF - Power Over Ethernet (POE) Controller, -57V/3 mA, 300 kHz Switch/Clock, -36V UVLO Threshold, SSOP-16

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Manufacturer Part No:
LTC4267IGN-3#PBF
Order Code:
1432775
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LTC4267IGN-3#PBF is an IEEE 802.3af® compliant Powered Device (PD) Interface with a 300kHz current-mode switching regulator, providing a complete power solution for PD applications. The LTC4267-3 integrates the 25k signature resistor, classification current source, thermal overload protection, signature disable and power good signal along with an under voltage lockout optimized for use with the IEEE-required diode bridge. The LTC4267-3 provides an increased operational current limit, maximizing power available for class 3 applications. The 300kHz current-mode switching regulator provides higher output power or smaller external size compared to its lower frequency counterparts. The LTC4267-3 is designed for driving a 6V rated N-channel MOSFET and features programmable slope compensation, soft-start and constant-frequency operation, minimizing noise even with light loads.
  • Precision dual level inrush current limit
  • Integrated current mode switching regulator
  • Onboard 25k signature resistor with disable
  • Programmable classification current
  • Thermal overload protection
  • Power good signal
  • Integrated error amplifier and voltage reference

Applications

Wireless, Security, Power Management, Communications & Networking

Product Information

:
57V
:
1A
:
-36V
:
SSOP
:
16Pins
:
90%
:
300kHz
:
-40°C
:
85°C
:
-
:
Yes
:
MSL 1 - Unlimited
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