TPS54541DPRR
Active4.5V TO 42V INPUT 5A STEP-DOWN DC-DC CONVERTER WITH SOFT-START AND ECO-MODE™
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TPS54541DPRR
Active4.5V TO 42V INPUT 5A STEP-DOWN DC-DC CONVERTER WITH SOFT-START AND ECO-MODE™
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS54541DPRR |
|---|---|
| Current - Output | 5 A |
| Frequency - Switching [Max] | 2.5 MHz |
| Frequency - Switching [Min] | 100 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 10-WDFN Exposed Pad |
| Supplier Device Package | 10-WSON (4x4) |
| Synchronous Rectifier | False |
| Topology | Split Rail, Buck |
| Voltage - Input (Max) [Max] | 42 V |
| Voltage - Input (Min) [Min] | 4.5 V |
| Voltage - Output (Max) [Max] | 41 V |
| Voltage - Output (Min/Fixed) | 0.8 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 4.92 | |
| 10 | $ 4.42 | |||
| 25 | $ 4.18 | |||
| 100 | $ 3.62 | |||
| 250 | $ 3.44 | |||
| 500 | $ 3.08 | |||
| 1000 | $ 2.60 | |||
| Digi-Reel® | 1 | $ 4.92 | ||
| 10 | $ 4.42 | |||
| 25 | $ 4.18 | |||
| 100 | $ 3.62 | |||
| 250 | $ 3.44 | |||
| 500 | $ 3.08 | |||
| 1000 | $ 2.60 | |||
| Tape & Reel (TR) | 3000 | $ 2.47 | ||
| Texas Instruments | LARGE T&R | 1 | $ 3.71 | |
| 100 | $ 3.25 | |||
| 250 | $ 2.28 | |||
| 1000 | $ 1.84 | |||
Description
General part information
TPS54541 Series
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.
Documents
Technical documentation and resources
