| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 8 Pin |
| Case/Package | SOIC-8 |
| Number of Outputs | 1 Output |
| Input Voltage (DC) | 8.00V ~ 13.0V |
| Output Voltage | 9V ~ 60V |
| Output Current | 1 A |
| Quiescent Current | 1.58 mA |
| Number of Regulated Outputs | 1 Output |
| Switching Frequency | 1 MHz |
| Thermal Shutdown | Yes |
| Input Voltage (Max) | 13 V |
| Input Voltage (Min) | 8 V |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 8V ~ 13V |
| Supply Voltage (Max) | 13 V |
| Supply Voltage (Min) | 8 V |
| Input Voltage | 8V ~ 13V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube |
| Size-Length | 5 mm |
| Size-Width | 4 mm |
| Size-Height | 1.5 mm |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
The LM3444 is an adaptive constant off-time AC/DC buck (step-down) constant current controller that provides a constant current for illuminating high power LEDs. The high-frequency capable architecture allows the use of small external passive components. A passive PFC circuit ensures good power factor by drawing current directly from the line for most of the cycle, and provides a constant positive voltage to the buck regulator. Additional features include thermal shutdown, current limit and VCC undervoltage lockout. The LM3444 is available in a low profile 10-pin VSSOP package or an 8-lead SOIC package.
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