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Technical Specifications
Parameters and characteristics for this part
| Specification | LT3755JMSE-2#WTRPBF |
|---|---|
| Applications | General Purpose |
| Dimming | Analog, PWM |
| Frequency [Max] | 1 MHz |
| Frequency [Min] | 100 kHz |
| Grade | Automotive |
| Internal Switch(s) | False |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | Exposed Pad, 16-TFSOP |
| Package / Case | 3 mm, 0.118 in |
| Qualification | AEC-Q100 |
| Supplier Device Package | 16-MSOP-EP |
| Topology | SEPIC, Step-Up (Boost), Flyback, Step-Down (Buck) |
| Type | DC DC Controller |
| Voltage - Supply (Max) [Max] | 40 V |
| Voltage - Supply (Min) [Min] | 4.5 V |
LT3755LT3755-1LT3755-2 Series
40VIN, 75VOUTLED Controllers
| Part | Package / Case | Type | Topology | Operating Temperature [Min] | Operating Temperature [Max] | Voltage - Supply (Min) [Min] | Internal Switch(s) | Frequency [Min] | Frequency [Max] | Voltage - Supply (Max) [Max] | Dimming | Number of Outputs | Mounting Type | Supplier Device Package | Applications | Qualification | Grade | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices | 16-WFQFN Exposed Pad | DC DC Controller | Flyback SEPIC Step-Down (Buck) Step-Up (Boost) | 0 °C | 125 ¯C | 4.5 V | 100 kHz | 1 MHz | 40 V | Analog PWM | 1 | Surface Mount | 16-QFN (3x3) | |||||
Analog Devices | 16-TFSOP Exposed Pad | DC DC Controller | Flyback SEPIC Step-Down (Buck) Step-Up (Boost) | -40 °C | 150 °C | 4.5 V | 100 kHz | 1 MHz | 40 V | Analog PWM | 1 | Surface Mount | 16-MSOP-EP | General Purpose | AEC-Q100 | Automotive | 0.118 in 3 mm | |
Analog Devices | 16-TFSOP Exposed Pad | DC DC Controller | Flyback SEPIC Step-Down (Buck) Step-Up (Boost) | -40 °C | 125 ¯C | 4.5 V | 100 kHz | 1 MHz | 40 V | Analog PWM | 1 | Surface Mount | 16-MSOP-EP | General Purpose | AEC-Q100 | Automotive | 0.118 in 3 mm | |
Analog Devices | 16-TFSOP Exposed Pad | DC DC Controller | Flyback SEPIC Step-Down (Buck) Step-Up (Boost) | -40 °C | 150 °C | 4.5 V | 100 kHz | 1 MHz | 40 V | Analog PWM | 1 | Surface Mount | 16-MSOP-EP | General Purpose | AEC-Q100 | Automotive | 0.118 in 3 mm | |
 Analog Devices | 16-TFSOP Exposed Pad | DC DC Controller | Flyback SEPIC Step-Down (Buck) Step-Up (Boost) | -40 °C | 125 ¯C | 4.5 V | 100 kHz | 1 MHz | 40 V | Analog PWM | 1 | Surface Mount | 16-MSOP-EP | General Purpose | AEC-Q100 | Automotive | 0.118 in 3 mm | |
Analog Devices | 16-WFQFN Exposed Pad | DC DC Controller | Flyback SEPIC Step-Down (Buck) Step-Up (Boost) | 0 °C | 125 ¯C | 4.5 V | 100 kHz | 1 MHz | 40 V | Analog PWM | 1 | Surface Mount | 16-QFN (3x3) | |||||
Analog Devices | 16-TFSOP Exposed Pad | DC DC Controller | Flyback SEPIC Step-Down (Buck) Step-Up (Boost) | 0 °C | 125 ¯C | 4.5 V | 100 kHz | 1 MHz | 40 V | Analog PWM | 1 | Surface Mount | 16-MSOP-EP | 0.118 in 3 mm | ||||
Analog Devices | 16-WFQFN Exposed Pad | DC DC Controller | Flyback SEPIC Step-Down (Buck) Step-Up (Boost) | -40 °C | 125 ¯C | 4.5 V | 100 kHz | 1 MHz | 40 V | Analog PWM | 1 | Surface Mount | 16-QFN (3x3) | |||||
Analog Devices | 16-TFSOP Exposed Pad | DC DC Controller | Flyback SEPIC Step-Down (Buck) Step-Up (Boost) | 0 °C | 125 ¯C | 4.5 V | 100 kHz | 1 MHz | 40 V | Analog PWM | 1 | Surface Mount | 16-MSOP-EP | 0.118 in 3 mm | ||||
Analog Devices | 16-TFSOP Exposed Pad | DC DC Controller | Flyback SEPIC Step-Down (Buck) Step-Up (Boost) | -40 °C | 125 ¯C | 4.5 V | 100 kHz | 1 MHz | 40 V | Analog PWM | 1 | Surface Mount | 16-MSOP-EP | 0.118 in 3 mm |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 2500 | $ 5.83 | |
Description
General part information
LT3755LT3755-1LT3755-2 Series
The LT3755, LT3755-1 and LT3755-2 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/LT3755-1/LT3755-2 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.ApplicationsHigh Power LEDBattery ChargersAccurate Current Limited Voltage Regulators
Documents
Technical documentation and resources