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36V-72Vin to 12Vout @ 2A Output, Isolated Telecom Supply (No

2018-05-02 20:41  
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View Full Size Image View Original Datasheet36V-72Vin to 12Vout @ 2A Output, Isolated Telecom Supply (No Opto or Third Winding)

The LT3748 is a switching regulator controller specifically designed for the isolated flyback topology and capable of high power. It drives a low side external N-channel power MOSFET from an internally regulated 7V supply. No third winding or opto-isolator is required for regulation as the part senses the isolated output voltage directly from the primary-side flyback waveform. The LT3748 utilizes boundary mode to provide a small magnetic solution without compromising load regulation. Operating frequency is set by load current and transformer magnetizing inductance. The gate drive of the LT3748 combined with a suitable external MOSFET allow it to deliver load power up to several tens of watts from input voltages as high as 100V.

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