Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 17V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 15V |
| Current-Output | 5A |
| Frequency-Switching | 200kHz ~ 900kHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 14-VFQFN Exposed Pad |
Tổng quan
Description
The TPS54521RHLR is a high-efficiency synchronous buck converter designed by Texas Instruments. It integrates a 5 A, 14 V, step-down (buck) switch-mode power supply to provide precise voltage regulation. The device operates from a 4.5 V to 17 V input voltage range, making it suitable for various applications, including consumer electronics, industrial automation, and computing systems.
Key features include a fixed-frequency operation (typically 480 kHz), which allows for optimization of the external components and reduced electromagnetic interference (EMI). Its adaptive on-time control architecture enables fast transient response and high efficiency across a broad load range. The TPS54521RHLR also incorporates advanced features like cycle-by-cycle current limit protection, thermal shutdown, and undervoltage lockout (UVLO).
The device is offered in a thermally enhanced 3 mm x 3 mm VQFN package, ensuring effective heat dissipation. Additionally, it supports both fixed frequency and eco-mode operation, allowing for better power conservation in light-load conditions. With its compact size and robust performance, the TPS54521RHLR is an excellent choice for applications requiring efficient power management solutions.
Key features include a fixed-frequency operation (typically 480 kHz), which allows for optimization of the external components and reduced electromagnetic interference (EMI). Its adaptive on-time control architecture enables fast transient response and high efficiency across a broad load range. The TPS54521RHLR also incorporates advanced features like cycle-by-cycle current limit protection, thermal shutdown, and undervoltage lockout (UVLO).
The device is offered in a thermally enhanced 3 mm x 3 mm VQFN package, ensuring effective heat dissipation. Additionally, it supports both fixed frequency and eco-mode operation, allowing for better power conservation in light-load conditions. With its compact size and robust performance, the TPS54521RHLR is an excellent choice for applications requiring efficient power management solutions.
Equivalent
The TPS54521RHLR is a synchronous buck converter from Texas Instruments. Equivalent products might include:
1. LM43603 from Texas Instruments
2. LT8610 from Analog Devices
3. MP4560 from Monolithic Power Systems
4. ISL85415 from Renesas Electronics
These alternatives offer similar functionalities, such as wide input voltage ranges and high-efficiency DC-DC conversion. Always compare specific features and electrical characteristics to ensure compatibility with your application.
1. LM43603 from Texas Instruments
2. LT8610 from Analog Devices
3. MP4560 from Monolithic Power Systems
4. ISL85415 from Renesas Electronics
These alternatives offer similar functionalities, such as wide input voltage ranges and high-efficiency DC-DC conversion. Always compare specific features and electrical characteristics to ensure compatibility with your application.
Features
The TPS54521RHLR is a DC-DC buck converter with several key features:
1. Wide Input Voltage Range: Supports inputs from 4.5V to 17V, making it versatile for various applications.
2. Output Current: Capable of delivering up to 5A continuous output current.
3. High Efficiency: Operates with high efficiency across a broad load range, optimizing power usage and heat dissipation.
4. Integrated MOSFETs: Incorporates high-side and low-side MOSFETs, reducing the need for external components and simplifying design.
5. Adjustable Switching Frequency: Offers a selectable switching frequency up to 1.5 MHz, allowing for size optimization of external components.
6. Soft Start Feature: Includes an adjustable soft start to limit the inrush current during startup.
7. Protection Features: Provides overcurrent protection, thermal shutdown, and undervoltage lockout to enhance reliability.
8. Compact Package: Available in a small 3mm x 3mm VQFN package, optimizing space for compact designs.
These attributes make the TPS54521RHLR suitable for applications in telecommunications, networking, and industrial equipment that require efficient power conversion.
1. Wide Input Voltage Range: Supports inputs from 4.5V to 17V, making it versatile for various applications.
2. Output Current: Capable of delivering up to 5A continuous output current.
3. High Efficiency: Operates with high efficiency across a broad load range, optimizing power usage and heat dissipation.
4. Integrated MOSFETs: Incorporates high-side and low-side MOSFETs, reducing the need for external components and simplifying design.
5. Adjustable Switching Frequency: Offers a selectable switching frequency up to 1.5 MHz, allowing for size optimization of external components.
6. Soft Start Feature: Includes an adjustable soft start to limit the inrush current during startup.
7. Protection Features: Provides overcurrent protection, thermal shutdown, and undervoltage lockout to enhance reliability.
8. Compact Package: Available in a small 3mm x 3mm VQFN package, optimizing space for compact designs.
These attributes make the TPS54521RHLR suitable for applications in telecommunications, networking, and industrial equipment that require efficient power conversion.
Pinout
The TPS54521RHLR is a synchronous step-down DC-DC converter from Texas Instruments. It comes in a 20-pin VQFN (Quad Flat No-lead) package. The main functions of the TPS54521RHLR include:
1. Input Voltage Range: Operates from 4.5V to 17V input supply voltage.
2. Output Current: Capable of delivering up to 5A continuous output current.
3. Switching Frequency: Adjustable switching frequency from 200 kHz to 1.6 MHz, allowing for optimization between efficiency and component size.
4. Integrated MOSFETs: Features integrated high-side and low-side MOSFETs for synchronous rectification, improving efficiency.
5. Protection Features: Offers features like overcurrent protection, undervoltage lockout, and thermal shutdown for enhanced reliability.
6. Soft Start and Tracking: Provides adjustable soft start and tracking capabilities for controlled power-up sequences.
7. Compensation: External compensation for enhanced stability and transient response.
This device is suitable for applications requiring a compact and efficient power solution, such as computing, telecom, and industrial equipment. For detailed pin functions and schematic implementation, refer to the official datasheet provided by Texas Instruments.
1. Input Voltage Range: Operates from 4.5V to 17V input supply voltage.
2. Output Current: Capable of delivering up to 5A continuous output current.
3. Switching Frequency: Adjustable switching frequency from 200 kHz to 1.6 MHz, allowing for optimization between efficiency and component size.
4. Integrated MOSFETs: Features integrated high-side and low-side MOSFETs for synchronous rectification, improving efficiency.
5. Protection Features: Offers features like overcurrent protection, undervoltage lockout, and thermal shutdown for enhanced reliability.
6. Soft Start and Tracking: Provides adjustable soft start and tracking capabilities for controlled power-up sequences.
7. Compensation: External compensation for enhanced stability and transient response.
This device is suitable for applications requiring a compact and efficient power solution, such as computing, telecom, and industrial equipment. For detailed pin functions and schematic implementation, refer to the official datasheet provided by Texas Instruments.
Manufacturer
The TPS54521RHLR is manufactured by Texas Instruments. Texas Instruments, commonly known as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. It is one of the largest semiconductor companies in the world and is known for its development of analog chips and embedded processors, which are used in a wide range of electronic devices. Texas Instruments serves diverse markets, including industrial, automotive, personal electronics, communications equipment, and enterprise systems.
Application
The TPS54521RHLR is a DC-DC buck converter that is commonly used in various applications due to its high efficiency and flexible design. Key application areas include:
1. Telecommunications Equipment: Power supply for network infrastructure and communication devices.
2. Industrial Equipment: Used in machinery control systems and automation technologies.
3. Consumer Electronics: Provides efficient power management in devices like TVs and gaming consoles.
4. Computing and Servers: Helps in efficient power delivery to CPUs and GPUs in servers and high-performance computers.
5. Automotive Electronics: Powers infotainment systems and other electronic modules in vehicles.
Its ability to handle high current loads and provide stable output makes it suitable for these applications.
1. Telecommunications Equipment: Power supply for network infrastructure and communication devices.
2. Industrial Equipment: Used in machinery control systems and automation technologies.
3. Consumer Electronics: Provides efficient power management in devices like TVs and gaming consoles.
4. Computing and Servers: Helps in efficient power delivery to CPUs and GPUs in servers and high-performance computers.
5. Automotive Electronics: Powers infotainment systems and other electronic modules in vehicles.
Its ability to handle high current loads and provide stable output makes it suitable for these applications.
Package
The TPS54521RHLR is a DC-DC buck converter integrated circuit from Texas Instruments. It comes in a VQFN (Very Thin Quad Flat No-Lead) package with 20 pins. Specifically, the package size is 5 mm x 5 mm.
