| Part No.： | LT3755-1 |
| Page： | 28 Pages |
| Size： | 458 KB |
| Manufacturer： | Linear Technology |
| Logo： |  |
| Views： | 2 |
| Update Time： | 2023-12-07 10:19:29 |
| DataSheet： | Download |
| Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| LT3755EUD-1#PBF | Tube | 121 | LDMS | 1 | 16 | -40°C ~ 125°C | 16-Lead (3mm × 3mm) Plastic QFN | |
| LT3755EUD-1#TRPBF | Reel | 2500 | LDMS | 1 | 16 | -40°C ~ 125°C | 16-Lead (3mm × 3mm) Plastic QFN | |
| LT3755EUD-1#TRMPBF | Reel | 500 | LDMS | 1 | 16 | -40°C ~ 125°C | 16-Lead (3mm × 3mm) Plastic QFN | |
| LT3755IUD-1#PBF | Tube | 121 | LDMS | 1 | 16 | -40°C ~ 125°C | 16-Lead (3mm × 3mm) Plastic QFN | |
| LT3755IUD-1#TRPBF | Reel | 2500 | LDMS | 1 | 16 | -40°C ~ 125°C | 16-Lead (3mm × 3mm) Plastic QFN | |
| LT3755IUD-1#TRMPBF | Reel | 500 | LDMS | 1 | 16 | -40°C ~ 125°C | 16-Lead (3mm × 3mm) Plastic QFN | |
| LT3755EMSE-1#PBF | Tube | 37 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT3755EMSE-1#TRPBF | Reel | 2500 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT3755EMSE-1#TRMPBF | Reel | 500 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT3755IMSE-1#PBF | Tube | 37 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT3755IMSE-1#TRPBF | Reel | 2500 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT3755IMSE-1#TRMPBF | Reel | 500 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT3755EMSE-1#WPBF | Tube | 37 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT3755EMSE-1#WTRPBF | Reel | 2500 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT3755EMSE-1#WTRMPBF | Reel | 500 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT3755IMSE-1#WPBF | Tube | 37 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT3755IMSE-1#WTRPBF | Reel | 2500 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT3755IMSE-1#WTRMPBF | Reel | 500 | 37551 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP |
The LT3755-1 are DC/DC controllers designed to operate as a constant-current source for driving high current LEDs. They drive a low side external N-channel power MOSFET from an internal regulated 7.15V supply. The fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages. A ground referenced voltage FB pin serves as the input for several LED protection features, and also makes it possible for the converter to operate as a constant-voltage source. A frequency adjust pin allows the user to program the frequency from 100kHz to 1MHz to optimize efficiency, performance or external component size.
The LT3755-1 sense output current at the high side of the LED string. High side current sensing is the most flexible scheme for driving LEDs, allowing boost, buck mode or buck-boost mode configuration. The PWM input provides LED dimming ratios of up to 3000:1, and the CTRL input provides additional analog dimming capability.
