LTC4269IDKD-2#PBF Linear Technology, LTC4269IDKD-2#PBF Datasheet - Page 34

• Manufacturer Part Number: LTC4269IDKD-2#PBF
• Description: IC PD/SYNC FORWARD CTRLR 32-DFN
• Manufacturer: Linear Technology
• Type: Power Over Ethernet (PoE)r

Specifications of LTC4269IDKD-2#PBF

• Applications: Power Interface Switch for Power Over Ethernet (PoE) Devices
• Voltage - Supply: 14 V ~ 16 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-DFN
• Current - Supply: 1.35mA
• Interface: IEEE 802.3af
• Controller Type: Powered Device Interface Controller (PD)
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 32
• Mounting: Surface Mount
• Package Type: DFN EP
• Case Length: 7mm
• Screening Level: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PART NUMBER
LT
LTC3803
LTC3805
LTC3825
LTC4257-1
LTC4258
LTC4259A-1
LTC4263
LTC4263-1
LTC4265
LTC4266
LTC4267-1/
LTC4267-3
LTC4268-1
LTC4269-1
LTC4269-2
relaTeD parTs

®
1952
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
Single Switch Synchronous Forward Controller
Current Mode Flyback DC/DC Controller in ThinSOT™
Adjustable Frequency Current Mode Flyback Controller
Isolate No-Opto Synchronous Flyback Controller with
Wide Input Supply Range
IEEE 802.3af PD Interface Controller
Quad IEEE 802.3af Power over Ethernet Controller
Quad IEEE 802.3af Power over Ethernet Controller
Single IEEE 802.3af Power over Ethernet Controller
High Power Single PSE Controller
IEEE 802.3at PD Interface Controller
Quad IEEE 802.3at PSE Controller
IEEE 802.3af PD Interface with Integrated Switching
Regulator
35W High Power PD Interface with Integrated Switching
Regulator
IEEE 802.3at PD Interface Integrated Switching Regulator 2-Event Classification, Programmable Classification, Synchronous No-Opto
●
FAX: [phone]
●
www.linear.com
COMMENTS
Synchronous Controller, Programmable Volt-Sec Clamp, Low Start Current
200kHz Constant Frequency, Adjustable Slope Compensation, Optimized for
High Input Voltage Applications
Slope Comp Overcurrent Protect, Internal/External Clock
Adjustable Switching Frequency, Programmable Undervoltage Lockout,
Accurate Regulation Without Trim, Synchronous for High Efficiency.
100V 400mA Internal Switch, Programmable Classification Dual
Current Limit
DC Disconnect Only, IEEE-Compliant PD Detection and Classification,
Autonomous Operation or I
AC or DC Disconnect IEEE-Compliant PD Detection and Classification,
Autonomous Operation or I
AC or DC Disconnect IEEE-Compliant PD Detection and Classification,
Autonomous Operation
Internal Switch, Autonomous Operation, 30W
2-Event Classification Signaling, Programmable Classification,
Auxiliary Support
Type 1 and 2 Compliant, 180mW/Port at 720mA, Advanced Power
Management, 4-Point PD Detection
100V 400mA Internal Switch, Programmable Classification, 200KHz
or 300kHz Constant Frequency PWM, Interface and Switcher Optimized
for IEEE-Compliant PD System.
750mA MOSFET, Programmable Classification, Synchronous No-Opto
Flyback Controller, 50kHz to 250kHz
Flyback Controller, 50kHz to 250kHz
2
2
C Control
C Control
 LINEAR TECHNOLOGY CORPORATION 2009
LT 0409 REV B • PRINTED IN USA
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