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

LINEAR TECHNOLOGY LTC4267IGN-3#PBF
Manufacturer Part No:
LTC4267IGN-3#PBF
Order Code:
1432775
Technical Datasheet:
See all Technical Docs

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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

Product Information

Input Voltage:
57V
Output Current:
1A
UVLO:
-36V
Controller IC Case Style:
SSOP
No. of Pins:
16Pins
Duty Cycle (%):
90%
Frequency:
300kHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Wireless
  • Security
  • Power Management
  • Communications & Networking

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000159

Alternatives

PD INTERFACE, SWITCHING REG, SMD

LINEAR TECHNOLOGY

57 in stock

Price for: Each

1+ £3.62 25+ £2.15 100+ £1.92

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