仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | SWIFT™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 2.95V |
| Voltage-Input(Max) | 6V |
| Voltage-Output(Min/Fixed) | 0.6V |
| Voltage-Output(Max) | 4.5V |
| Current-Output | 6A |
| Frequency-Switching | 200kHz ~ 2MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 16-WFQFN Exposed Pad |
概要
Description
The TPS54678RTER is a high-efficiency, synchronous step-down DC-DC converter from Texas Instruments. It is designed to work in a compact form factor and is ideal for space-constrained applications. The converter features an input voltage range of 4.5V to 18V and can deliver up to 6A of continuous output current. It offers a fixed switching frequency of 700 kHz, which helps in optimizing the size of external components such as inductors and capacitors, thus reducing overall PCB footprint.
Key features include an adjustable output voltage, high efficiency across a wide load range, and integrated MOSFETs that minimize the need for external components. The TPS54678RTER also provides advanced protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout, ensuring reliable operation under varying conditions.
Its design makes it suitable for applications like telecommunications, networking equipment, and consumer electronics where efficient power conversion is crucial. The device is available in a thermally enhanced 16-pin VQFN package, which aids in heat dissipation and reliability.
Key features include an adjustable output voltage, high efficiency across a wide load range, and integrated MOSFETs that minimize the need for external components. The TPS54678RTER also provides advanced protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout, ensuring reliable operation under varying conditions.
Its design makes it suitable for applications like telecommunications, networking equipment, and consumer electronics where efficient power conversion is crucial. The device is available in a thermally enhanced 16-pin VQFN package, which aids in heat dissipation and reliability.
Equivalent
The TPS54678RTER is a step-down converter from Texas Instruments. Equivalent products include:
1. LM22678 - Another TI step-down regulator with similar specifications.
2. Maxim MAX17502 - A high-efficiency, step-down regulator.
3. Analog Devices ADP2441 - A 36V, 1A step-down regulator.
4. ON Semiconductor NCP3170 - A step-down converter with adjustable output.
5. Microchip MIC28512 - A high-efficiency buck regulator.
These alternatives may vary in specific features, so it's essential to verify compatibility with your application.
1. LM22678 - Another TI step-down regulator with similar specifications.
2. Maxim MAX17502 - A high-efficiency, step-down regulator.
3. Analog Devices ADP2441 - A 36V, 1A step-down regulator.
4. ON Semiconductor NCP3170 - A step-down converter with adjustable output.
5. Microchip MIC28512 - A high-efficiency buck regulator.
These alternatives may vary in specific features, so it's essential to verify compatibility with your application.
Features
The TPS54678RTER is a high-efficiency, synchronous step-down DC-DC converter designed by Texas Instruments. It is notable for its ability to deliver up to 6 A of continuous output current with a wide input voltage range of 4.5 V to 21 V. This makes it suitable for various applications, including industrial and telecommunications systems.
Key features include:
1. High Efficiency: The device operates at high efficiency across a range of loads, thanks to its integrated MOSFETs and advanced switching techniques.
2. Adjustable Output Voltage: It provides a flexible output voltage range, adjustable via an external resistor divider.
3. Soft Start and Tracking: The TPS54678RTER includes a programmable soft-start and tracking capability, enhancing system design flexibility.
4. Protection Features: It offers robust protection mechanisms, including overcurrent protection (OCP), overvoltage protection (OVP), and thermal shutdown.
5. Compact Package: Available in a 16-pin WQFN package, it is suitable for space-constrained applications.
6. Advanced Control: Features advanced D-CAP2™ mode control for excellent transient response and low output ripple.
These features make the TPS54678RTER a versatile and reliable choice for power management solutions.
Key features include:
1. High Efficiency: The device operates at high efficiency across a range of loads, thanks to its integrated MOSFETs and advanced switching techniques.
2. Adjustable Output Voltage: It provides a flexible output voltage range, adjustable via an external resistor divider.
3. Soft Start and Tracking: The TPS54678RTER includes a programmable soft-start and tracking capability, enhancing system design flexibility.
4. Protection Features: It offers robust protection mechanisms, including overcurrent protection (OCP), overvoltage protection (OVP), and thermal shutdown.
5. Compact Package: Available in a 16-pin WQFN package, it is suitable for space-constrained applications.
6. Advanced Control: Features advanced D-CAP2™ mode control for excellent transient response and low output ripple.
These features make the TPS54678RTER a versatile and reliable choice for power management solutions.
Pinout
The TPS54678RTER is a step-down DC-DC converter from Texas Instruments, designed for high-efficiency power supply applications. It comes in a 16-pin VQFN package. Here is a brief overview of its functions:
1. SW (Switching Node): Connects to the inductor for the output stage.
2. BOOT (Bootstrap): Supplies the drive voltage to the high-side MOSFET.
3. VIN (Input Voltage): The supply voltage input for the power stage.
4. EN (Enable): Enables or disables the device.
5. COMP (Compensation): Connection for the compensation network to stabilize the control loop.
6. FB (Feedback): Connects to the output voltage divider to regulate the output voltage.
7. SS/TR (Soft Start / Tracking): Controls the startup time and tracking features.
8. PGND (Power Ground): Ground for the power stage.
9. AGND (Analog Ground): Ground for the control circuitry.
10. VSENSE: Senses the output voltage.
11. PWRGD (Power Good): An open-drain output indicating the output voltage is within specification.
12. RT/CLK: Sets the switching frequency or provides a clock signal for synchronization.
13. PVIN (Power Input Voltage): Primary power input for the device.
This configuration allows the TPS54678RTER to efficiently convert a higher input voltage to a lower output voltage, suitable for various applications.
1. SW (Switching Node): Connects to the inductor for the output stage.
2. BOOT (Bootstrap): Supplies the drive voltage to the high-side MOSFET.
3. VIN (Input Voltage): The supply voltage input for the power stage.
4. EN (Enable): Enables or disables the device.
5. COMP (Compensation): Connection for the compensation network to stabilize the control loop.
6. FB (Feedback): Connects to the output voltage divider to regulate the output voltage.
7. SS/TR (Soft Start / Tracking): Controls the startup time and tracking features.
8. PGND (Power Ground): Ground for the power stage.
9. AGND (Analog Ground): Ground for the control circuitry.
10. VSENSE: Senses the output voltage.
11. PWRGD (Power Good): An open-drain output indicating the output voltage is within specification.
12. RT/CLK: Sets the switching frequency or provides a clock signal for synchronization.
13. PVIN (Power Input Voltage): Primary power input for the device.
This configuration allows the TPS54678RTER to efficiently convert a higher input voltage to a lower output voltage, suitable for various applications.
Manufacturer
The TPS54678RTER is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is a global semiconductor company that designs and manufactures a range of electronic products and components. TI specializes in analog chips, embedded processors, and digital signal processors, among other products. The company provides solutions for various industries, including automotive, industrial, personal electronics, and communications equipment. Known for its innovation and extensive product portfolio, Texas Instruments plays a significant role in the development of technologies that power modern electronics.
Application
The TPS54678RTER is a high-efficiency, synchronous buck converter primarily used in applications requiring compact size and high power density. Its application areas include:
1. Telecommunications Equipment: Provides stable power for communication devices.
2. Industrial Automation: Powers control systems and sensors.
3. Networking Devices: Supports routers, switches, and other network infrastructure.
4. Data Centers: Used in server power supplies for efficient energy management.
5. Consumer Electronics: Powers devices like set-top boxes and gaming consoles.
6. Embedded Systems: Supplies power for processors and microcontrollers in embedded applications.
These areas benefit from the TPS54678RTER's compact design, high efficiency, and reliable performance.
1. Telecommunications Equipment: Provides stable power for communication devices.
2. Industrial Automation: Powers control systems and sensors.
3. Networking Devices: Supports routers, switches, and other network infrastructure.
4. Data Centers: Used in server power supplies for efficient energy management.
5. Consumer Electronics: Powers devices like set-top boxes and gaming consoles.
6. Embedded Systems: Supplies power for processors and microcontrollers in embedded applications.
These areas benefit from the TPS54678RTER's compact design, high efficiency, and reliable performance.
Package
The TPS54678RTER is a step-down DC-DC converter from Texas Instruments, packaged in a 16-pin WQFN (RTE) package. The WQFN, or Quad Flat No-Lead, package provides a compact and efficient solution with a small footprint, suitable for high-density electronic designs.
