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TPS54538RQFR
+BOM3.8-V TO 28-V, 5-A, 200-KHZ TO 2
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #TPS54538RQFR
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Bảng dữ liệu TPS54538RQFR DataSheet
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| 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) |
Tổng quan
Description
The TPS54538RQFR is a high-performance, step-down (buck) voltage regulator from Texas Instruments. Designed for a wide input voltage range of 4.5V to 17V, it provides efficient power conversion with a maximum output current of 3A. The device features an integrated FET architecture that enhances efficiency, particularly under light loads, and it supports a wide range of output voltages down to 0.8V, making it suitable for various applications.
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.
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
Equivalent products to the TPS54538RQFR include the LM2675, LM22676, and LMR33630. These alternatives offer similar voltage regulation and current handling capabilities. Always check specific requirements like voltage, current ratings, and footprint compatibility when selecting alternatives.
Features
The TPS54538RQFR is a high-efficiency, integrated step-down (buck) voltage regulator designed for a wide range of applications. Key features include:
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.
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
The TPS54538RQFR is a Texas Instruments step-down (buck) DC-DC converter. It has a total of 28 pins.
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.
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.
Manufacturer
The TPS54538RQFR is manufactured by Texas Instruments (TI), a leading global semiconductor company. Founded in 1930 and headquartered in Dallas, Texas, Texas Instruments designs and manufactures a wide range of electronic components, including analog and mixed-signal devices, embedded processors, and digital signal processors. TI is well-known for its innovative technologies in various sectors, including automotive, industrial, communications, and consumer electronics. The TPS54538RQFR is a high-efficiency step-down power management IC, commonly used in power supply designs for various applications due to its robust performance and versatility. Texas Instruments is recognized for its commitment to quality, reliability, and customer service, making it a trusted name in the semiconductor industry.
Application
The TPS54538RQFR is a high-efficiency, step-down DC-DC converter primarily used in applications such as industrial automation, telecom equipment, and embedded systems. It is suitable for powering processors, FPGAs, and sensors where precise voltage regulation is crucial. Additionally, it serves in automotive applications for powering infotainment systems and driver assistance modules. Its robust design enables it to support power management in consumer electronics and battery-operated devices, making it versatile for various power supply needs across multiple sectors.
Package
The TPS54538RQFR is packaged in a VQFN (Very thin Quad Flat No-lead) format, specifically a 7 mm x 7 mm package with a thermal pad for enhanced heat dissipation. This package type allows for efficient PCB space utilization and improves thermal performance.
