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LT1680

Linear Technology
Part Number LT1680
Manufacturer Linear Technology
Description High Power DC/DC Step-Up Controller
Published Mar 22, 2005
Detailed Description LT1680 High Power DC/DC Step-Up Controller FEATURES s s DESCRIPTION The LT ®1680 is a high power, current mode switchin...
Datasheet PDF File LT1680 PDF File

LT1680
LT1680

Overview
LT1680 High Power DC/DC Step-Up Controller FEATURES s s DESCRIPTION The LT ®1680 is a high power, current mode switching power supply controller optimized for boost topologies.
The IC drives N-channel MOSFET switches for DC/DC converters in applications up to 60V input.
A high current gate drive output handles up to 10,000pF gate capacitance, enabling the construction of high power DC/DC converters.
Current sense common mode range up to 60V allows current sensing to be referenced to the input supply, eliminating the need for sense blanking circuits.
The LT1680 incorporates programmable average current limiting allowing accurate limiting of DC current in the magnetics, independent of ripple current .
User adjustable slope compensation provides stable operation at duty cycles up to 90%.
The LT1680 operating frequency is programmable and can be synchronized up to 200kHz.
Minimum off-time operation provides switch protection.
The IC also incorporates a soft start feature that is gated by ...


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