| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 10 Pin |
| Case/Package | WSON-10 |
| Number of Outputs | 1 Output |
| Output Voltage | 0.8V ~ 41V |
| Output Current | 5 A |
| Quiescent Current | 152 µA |
| Number of Regulated Outputs | 1 Output |
| Switching Frequency | 100kHz ~ 2.5MHz |
| Topology | Buck |
| Input Voltage (Max) | 42 V |
| Input Voltage (Min) | 4.5 V |
| Output Voltage (Max) | 41 V |
| Output Voltage (Min) | 0.8 V |
| Output Current (Max) | 5 a |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Input Voltage | 42 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Operating Temperature | -40℃ ~ 85℃ (TA) |
The TPS54541 device is a 42-V 5-A step-down regulator with an integrated high-side MOSFET. The device survives load dump pulses up to 45 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 152 µA. When the enable pin is pulled low, the shutdown supply current is reduced to 2 µA.
●Undervoltage lockout is internally set at 4.3 V but can increase using an external resistor divider at the enable pin. The output voltage startup ramp is controlled by the soft-start pin that can also be configured for sequencing and tracking. An open-drain power-good signal indicates the output is within 93% to 106% of the nominal voltage.
●A wide adjustable switching-frequency range allows for optimization of either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback, and thermal shutdown protect internal and external components during an overload condition.
●The TPS54541 device is available in a 10-pin 4-mm × 4-mm WSON package.
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