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TPS54538RQFR
+物料清單3.8-V TO 28-V, 5-A, 200-KHZ TO 2
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製造商德州儀器
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製造商部分 #TPS54538RQFR
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有存貨6757
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規格
| 屬性 | 價值 |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.8V |
| Voltage - Input (Max) | 28V |
| Voltage - Output (Min / Fixed) | 0.6V |
| Voltage - Output (Max) | 22V |
| Current - Output | 5A |
| Frequency - Switching | 200kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 9-PowerVFQFN |
| Supplier Device Package | 9-VQFN-HR (1.5x2) |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
概述
Description
Key features include adjustable output voltage, a high switching frequency of up to 1 MHz for smaller external components, and built-in protections such as overcurrent and thermal shutdown. Its compact package and simplicity in design make it ideal for applications in consumer electronics, industrial automation, and automotive systems.
The TPS54538RQFR is particularly noted for its robust performance in demanding environments, ensuring reliable operation across a range of temperatures. Overall, it offers an efficient and versatile solution for power supply design needs.
Equivalent
Features
1. Input Voltage Range: Supports 4.5V to 17V input voltage.
2. Output Voltage: Adjustable output voltage from 0.8V to 5.5V.
3. High Efficiency: Achieves up to 95% efficiency, reducing heat generation.
4. Load Current: Capable of delivering up to 3A continuous output current.
5. Switching Frequency: Operates at a fixed frequency of 1 MHz, allowing for smaller external components.
6. Thermal Protection: Includes built-in thermal shutdown to prevent overheating.
7. Soft Start: Features an adjustable soft-start function to limit in-rush current.
8. Enable Function: Can be disabled to reduce power consumption in standby mode.
9. Compact Package: Offered in a QFN package for space-saving designs.
These features make the TPS54538RQFR suitable for applications such as telecommunications, industrial automation, and consumer electronics.
Pinout
Key functions of the pins include:
1. VIN: Input voltage.
2. GND: Ground connection.
3. SW: Switch node for the output.
4. VOUT: Output voltage feedback.
5. COMP: Compensation network connection for stability.
6. SS: Soft-start pin for controlling output voltage ramp-up.
7. SYNC: Synchronization pin for frequency synchronization.
8. RT: Resistor to set the switching frequency.
9. PG: Power good indicator.
10. ILIM: Current limit setting.
The device is designed for high efficiency and supports a wide input voltage range, making it suitable for various power management applications. For detailed pin configuration and additional specifications, refer to the device's datasheet.