LTC4269-2
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Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
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FAX: (408) 434-0507
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www.linear.com
LINEAR TECHNOLOGY CORPORATION 2009
LT 0409 REV B • PRINTED IN USA
relaTeD parTs
PART NUMBER DESCRIPTION COMMENTS
LT
®
1952 Single Switch Synchronous Forward Controller Synchronous Controller, Programmable Volt-Sec Clamp, Low Start Current
LTC3803 Current Mode Flyback DC/DC Controller in ThinSOT™ 200kHz Constant Frequency, Adjustable Slope Compensation, Optimized for
High Input Voltage Applications
LTC3805 Adjustable Frequency Current Mode Flyback Controller Slope Comp Overcurrent Protect, Internal/External Clock
LTC3825 Isolate No-Opto Synchronous Flyback Controller with
Wide Input Supply Range
Adjustable Switching Frequency, Programmable Undervoltage Lockout,
Accurate Regulation Without Trim, Synchronous for High Efficiency.
LTC4257-1 IEEE 802.3af PD Interface Controller 100V 400mA Internal Switch, Programmable Classification Dual
Current Limit
LTC4258 Quad IEEE 802.3af Power over Ethernet Controller DC Disconnect Only, IEEE-Compliant PD Detection and Classification,
Autonomous Operation or I
2
C Control
LTC4259A-1 Quad IEEE 802.3af Power over Ethernet Controller AC or DC Disconnect IEEE-Compliant PD Detection and Classification,
Autonomous Operation or I
2
C Control
LTC4263 Single IEEE 802.3af Power over Ethernet Controller AC or DC Disconnect IEEE-Compliant PD Detection and Classification,
Autonomous Operation
LTC4263-1 High Power Single PSE Controller Internal Switch, Autonomous Operation, 30W
LTC4265 IEEE 802.3at PD Interface Controller 2-Event Classification Signaling, Programmable Classification,
Auxiliary Support
LTC4266 Quad IEEE 802.3at PSE Controller Type 1 and 2 Compliant, 180mW/Port at 720mA, Advanced Power
Management, 4-Point PD Detection
LTC4267-1/
LTC4267-3
IEEE 802.3af PD Interface with Integrated Switching
Regulator
100V 400mA Internal Switch, Programmable Classification, 200KHz
or 300kHz Constant Frequency PWM, Interface and Switcher Optimized
for IEEE-Compliant PD System.
LTC4268-1 35W High Power PD Interface with Integrated Switching
Regulator
750mA MOSFET, Programmable Classification, Synchronous No-Opto
Flyback Controller, 50kHz to 250kHz
LTC4269-1 IEEE 802.3at PD Interface Integrated Switching Regulator 2-Event Classification, Programmable Classification, Synchronous No-Opto
Flyback Controller, 50kHz to 250kHz
