LT3748HMS#PBF
Active100V ISOLATED FLYBACK CONTROLLER
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LT3748HMS#PBF
Active100V ISOLATED FLYBACK CONTROLLER
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Technical Specifications
Parameters and characteristics for this part
| Specification | LT3748HMS#PBF |
|---|---|
| Clock Sync | False |
| Control Features | Soft Start, Enable |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive, Isolation Capable |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 12, 0.118 in, 3 Lead |
| Package / Case | 16-TFSOP |
| Supplier Device Package | 16-MSOP |
| Synchronous Rectifier | False |
| Topology | Flyback |
| Voltage - Supply (Vcc/Vdd) [Max] | 100 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 12.17 | |
| 10 | $ 8.57 | |||
| 25 | $ 7.64 | |||
| 100 | $ 6.60 | |||
| 250 | $ 6.10 | |||
| 500 | $ 5.79 | |||
| 1000 | $ 5.55 | |||
Description
General part information
LT3748 Series
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.The LT3748 is available in a high voltage 16-lead MSOP package with four leads removed.ApplicationsIsolated Telecom ConvertersHigh Power Automotive SuppliesIsolated Industrial Power SuppliesMilitary and High Temperature Applications
Documents
Technical documentation and resources