| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 300kHz ~ 1MHz |
| Number of Pins | 8 Pin |
| Case/Package | MSOP-8 |
| Number of Outputs | 1 Output |
| Input Voltage (DC) | 4.50V ~ 30.0V |
| Output Voltage | 27 V |
| Output Current | 350 mA |
| Number of Positions | 8 Position |
| Quiescent Current | 780 µA |
| Number of Regulated Outputs | 1 Output |
| Switching Frequency | 1 MHz |
| Thermal Shutdown | Yes |
| Topology | Buck |
| Input Voltage (Max) | 30 V |
| Input Voltage (Min) | 4.5 V |
| Output Voltage (Max) | 27 V |
| Output Voltage (Min) | 0.1 V |
| Output Current (Max) | 350 mA |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 4.5 V |
| Supply Voltage (Max) | 30 V |
| Supply Voltage (Min) | 4.5 V |
| Input Voltage | 4.5 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Size-Length | 3 mm |
| Size-Width | 3 mm |
| Size-Height | 0.86 mm |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
The LM3407 device is a constant current output floating buck switching converter designed to provide constant current to high-power LEDs. The device is ideal for automotive, industrial, and general lighting applications. The LM3407 has an integrated power N-channel MOSFET that makes the application solution compact and simple to implement. An external 1% thick-film resistor allows the converter output voltage to adjust as needed to deliver constant current within 10% accuracy to a serially connected LED string of varying number and type. Converter switching frequency is adjustable from 300 kHz to 1 MHz. The LM3407 features a dimming input to enable LED brightness control by Pulse Width Modulation (PWM). Additionally, a separate enable pin allows for low-power shutdown. An exposed pad MSOP-8 package provides excellent heat dissipation and thermal performance. Input UVLO and output open-circuit protection ensure a robust LED driver solution.
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