仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| 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 | 5A |
| Frequency-Switching | 200kHz ~ 2MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 140°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 16-WFQFN Exposed Pad |
概要
Description
The TPS54519RTER is a synchronous step-down (buck) DC-DC converter from Texas Instruments. It belongs to the SWIFT™ family and is designed for high-efficiency power supply applications. This device operates from an input voltage range of 4.5V to 17V and can deliver an output current up to 5A, making it suitable for applications such as consumer electronics, industrial equipment, and communication devices.
The converter features an adjustable output voltage, which can be set using external resistors, and supports a switching frequency range of 200 kHz to 2 MHz, allowing for flexibility in optimizing efficiency and compactness. It includes integrated MOSFETs, which reduce the need for external components and improve overall efficiency. The TPS54519RTER also offers features like soft-start, enable pin, and power-good output for improved system control and sequencing.
Protection features include overcurrent protection, undervoltage lockout, and thermal shutdown, ensuring reliable operation under various conditions. The device is available in a thermally enhanced 16-pin WQFN package.
The converter features an adjustable output voltage, which can be set using external resistors, and supports a switching frequency range of 200 kHz to 2 MHz, allowing for flexibility in optimizing efficiency and compactness. It includes integrated MOSFETs, which reduce the need for external components and improve overall efficiency. The TPS54519RTER also offers features like soft-start, enable pin, and power-good output for improved system control and sequencing.
Protection features include overcurrent protection, undervoltage lockout, and thermal shutdown, ensuring reliable operation under various conditions. The device is available in a thermally enhanced 16-pin WQFN package.
Equivalent
Equivalent products to the TPS54519RTER, a step-down converter by Texas Instruments, could include devices with similar specifications and features from other manufacturers. Some possible alternatives are:
1. LM26420 from Texas Instruments
2. LTC3605 from Analog Devices
3. MP2459 from Monolithic Power Systems
4. MAX15021 from Maxim Integrated
It's essential to compare the electrical specifications and package requirements to ensure compatibility in your specific application.
1. LM26420 from Texas Instruments
2. LTC3605 from Analog Devices
3. MP2459 from Monolithic Power Systems
4. MAX15021 from Maxim Integrated
It's essential to compare the electrical specifications and package requirements to ensure compatibility in your specific application.
Features
The TPS54519RTER is a step-down (buck) converter designed for high-efficiency power management applications. Key features include:
1. Voltage Input Range: Operates with input voltages from 2.95V to 6V, making it suitable for standard 3.3V and 5V rails.
2. Output Current: Capable of delivering up to 5A continuous output current.
3. Adjustable Output Voltage: The output voltage can be set as low as 0.8V, allowing for flexibility in various applications.
4. Switching Frequency: Offers an adjustable switching frequency ranging from 200 kHz to 2 MHz, allowing for optimized efficiency and component size.
5. High Efficiency: Designed for high efficiency across a wide load range, thanks to its synchronous step-down architecture with integrated high and low-side MOSFETs.
6. Soft Start and Tracking: Includes a soft-start feature to limit inrush current and enable power sequencing.
7. Protection Features: Incorporates overcurrent protection, thermal shutdown, and output short-circuit protection to enhance reliability.
8. Compact Packaging: Available in a 16-pin WQFN package, facilitating space-constrained designs.
These features make the TPS54519RTER suitable for a variety of applications, including telecommunications, networking, and industrial equipment.
1. Voltage Input Range: Operates with input voltages from 2.95V to 6V, making it suitable for standard 3.3V and 5V rails.
2. Output Current: Capable of delivering up to 5A continuous output current.
3. Adjustable Output Voltage: The output voltage can be set as low as 0.8V, allowing for flexibility in various applications.
4. Switching Frequency: Offers an adjustable switching frequency ranging from 200 kHz to 2 MHz, allowing for optimized efficiency and component size.
5. High Efficiency: Designed for high efficiency across a wide load range, thanks to its synchronous step-down architecture with integrated high and low-side MOSFETs.
6. Soft Start and Tracking: Includes a soft-start feature to limit inrush current and enable power sequencing.
7. Protection Features: Incorporates overcurrent protection, thermal shutdown, and output short-circuit protection to enhance reliability.
8. Compact Packaging: Available in a 16-pin WQFN package, facilitating space-constrained designs.
These features make the TPS54519RTER suitable for a variety of applications, including telecommunications, networking, and industrial equipment.
Pinout
The TPS54519RTER is a step-down (buck) converter from Texas Instruments, designed for power management in various applications. It is part of the TPS54519 series. This specific model typically comes in a VQFN (RTV) package with 16 pins.
Here is a brief overview of its pin functions:
1. VIN: Power input voltage.
2. EN: Enable pin to turn the converter on or off.
3. SS/TR: Soft-start and tracking pin.
4. FB: Feedback input for setting output voltage.
5. COMP: Compensation pin for loop compensation.
6. PWRGD: Power good indicator.
7. RT/CLK: Frequency set or synchronization input.
8. BOOT: Bootstrap capacitor connection for high-side FET drive.
9. SW: Switch node, connected to the inductor.
10. GND: Ground.
11. PGND: Power ground for the power stage.
12-16. NC/DAP: No connect or thermal pad for heat dissipation.
This converter supports a wide input voltage range and provides a high level of integration to reduce component count in the design. For precise pin function and connection, always refer to the manufacturer's datasheet.
Here is a brief overview of its pin functions:
1. VIN: Power input voltage.
2. EN: Enable pin to turn the converter on or off.
3. SS/TR: Soft-start and tracking pin.
4. FB: Feedback input for setting output voltage.
5. COMP: Compensation pin for loop compensation.
6. PWRGD: Power good indicator.
7. RT/CLK: Frequency set or synchronization input.
8. BOOT: Bootstrap capacitor connection for high-side FET drive.
9. SW: Switch node, connected to the inductor.
10. GND: Ground.
11. PGND: Power ground for the power stage.
12-16. NC/DAP: No connect or thermal pad for heat dissipation.
This converter supports a wide input voltage range and provides a high level of integration to reduce component count in the design. For precise pin function and connection, always refer to the manufacturer's datasheet.
Manufacturer
The TPS54519RTER is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits. Their products are widely used in electronic devices and systems, spanning industries from consumer electronics to automotive and industrial applications. TI is known for its innovation in analog and embedded processing products, making it a significant player in the semiconductor industry.
Application
The TPS54519RTER is a synchronous step-down DC-DC converter designed for high-efficiency power management. Its application areas include powering microcontrollers, FPGAs, DSPs, and ASICs in embedded systems. It's commonly used in telecommunications, networking equipment, servers, and storage systems due to its ability to deliver up to 5 A of continuous output current. The device is also suitable for industrial and consumer electronics, where efficient voltage regulation is critical. Its compact package and high switching frequency make it ideal for space-constrained applications, such as portable devices and advanced computing systems.
Package
The TPS54519RTER is packaged in a WQFN (Wettable Flank Quad Flat No-Lead) package with a 16-pin configuration. This type of package is designed for surface mounting and provides improved thermal performance and reliability.
