| TYPE | DESCRIPTION |
|---|
| Number of Pins | 24 Pin |
| Case/Package | VQFN-24 |
| Number of Outputs | 1 Output |
| Output Voltage | 1.5V ~ 15V |
| Output Current | 20 A |
| Rise Time | 4 ns |
| Switching Frequency | 2.2 MHz |
| Input Voltage (Max) | 42 V |
| Input Voltage (Min) | 3.8 V |
| Output Current (Max) | 20 A |
| Maximum Duty Cycle | 0.5 |
| Fall Time | 3 ns |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Input Voltage | 3.8V ~ 45V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Operating Temperature | -40℃ ~ 125℃ (TA) |
The LM25141 is a synchronous buck controller, intended for high voltage wide VIN step-down converter applications. The control method is peak current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation. The LM25141 features slew rate control to simplify the compliance with EMI requirements.
●The LM25141 has two selectable switching frequencies: 2.2 MHz and 440 kHz. Gate Drivers with Slew Rate Control that can be adjusted to reduce EMI.
●In light or no-load conditions, the LM25141 operates in skip cycle mode for improved low power efficiency. The LM25141 has a high voltage bias regulator with automatic switch-over to an external bias to reduce the IQ current from VIN. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overload, and power good output.
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