規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | SWIFT™, D-CAP2™, Eco-Mode™ |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 18V |
| Voltage - Output (Min/Fixed) | 0.76V |
| Voltage - Output (Max) | 5.5V |
| Current - Output | 4A |
| Frequency - Switching | 700kHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
The TPS54426RSAR is a high-efficiency, synchronous step-down converter from Texas Instruments, designed to provide a reliable power solution for various applications. Operating with an input voltage range of 4.5V to 18V, it delivers an adjustable output voltage as low as 0.76V with a maximum output current of 4A. This converter is particularly suitable for use in power management for processors, ASICs, and other digital systems.
Key features include an integrated high-side and low-side MOSFET, reducing component count and improving efficiency. The TPS54426RSAR employs a fixed-frequency, current-mode control topology, ensuring fast transient response and stability. The device also features soft-start, overcurrent protection, and thermal shutdown, enhancing reliability and performance.
Packaged in a thermally enhanced 10-pin VSON package, the converter provides efficient thermal dissipation, crucial for compact designs. This makes the TPS54426RSAR an excellent choice for applications requiring compact size, high efficiency, and robust performance, such as telecommunications, networking, and industrial equipment.
Key features include an integrated high-side and low-side MOSFET, reducing component count and improving efficiency. The TPS54426RSAR employs a fixed-frequency, current-mode control topology, ensuring fast transient response and stability. The device also features soft-start, overcurrent protection, and thermal shutdown, enhancing reliability and performance.
Packaged in a thermally enhanced 10-pin VSON package, the converter provides efficient thermal dissipation, crucial for compact designs. This makes the TPS54426RSAR an excellent choice for applications requiring compact size, high efficiency, and robust performance, such as telecommunications, networking, and industrial equipment.
Equivalent
The TPS54426RSAR is a synchronous step-down DC-DC converter from Texas Instruments. Equivalent products from other manufacturers include:
1. LM2596 from Texas Instruments – A simple switcher buck regulator.
2. MP1584 from Monolithic Power Systems – An adjustable step-down regulator.
3. LTC3633 from Analog Devices – Dual output step-down regulator.
4. NCP3170 from ON Semiconductor – A high-efficiency step-down voltage regulator.
These alternatives have similar functionalities but may differ in specifications like input voltage range, output current, or package type. Always verify compatibility with your specific application requirements.
1. LM2596 from Texas Instruments – A simple switcher buck regulator.
2. MP1584 from Monolithic Power Systems – An adjustable step-down regulator.
3. LTC3633 from Analog Devices – Dual output step-down regulator.
4. NCP3170 from ON Semiconductor – A high-efficiency step-down voltage regulator.
These alternatives have similar functionalities but may differ in specifications like input voltage range, output current, or package type. Always verify compatibility with your specific application requirements.
Features
The TPS54426RSAR is a high-efficiency synchronous buck converter from Texas Instruments. Key features include:
1. Input Voltage Range: Operates from 4.5V to 18V, supporting a wide range of applications.
2. Output Current: Capable of delivering up to 4A continuous output current.
3. Efficiency: High efficiency with integrated MOSFETs, minimizing power loss.
4. Switching Frequency: Adjustable between 300kHz and 2MHz, allowing optimization for size and efficiency.
5. Soft Start: Adjustable soft-start feature to limit inrush current during startup.
6. Protection: Built-in protection features include overcurrent, overvoltage, and thermal shutdown.
7. Compensation: Internal compensation simplifies design and reduces external component count.
8. Thermal Performance: Available in a thermally enhanced 16-pin QFN package for efficient heat dissipation.
9. Low Dropout: Supports low-dropout operation, enhancing performance in battery-powered applications.
These features make the TPS54426RSAR suitable for a variety of applications, including computing, consumer electronics, and industrial systems.
1. Input Voltage Range: Operates from 4.5V to 18V, supporting a wide range of applications.
2. Output Current: Capable of delivering up to 4A continuous output current.
3. Efficiency: High efficiency with integrated MOSFETs, minimizing power loss.
4. Switching Frequency: Adjustable between 300kHz and 2MHz, allowing optimization for size and efficiency.
5. Soft Start: Adjustable soft-start feature to limit inrush current during startup.
6. Protection: Built-in protection features include overcurrent, overvoltage, and thermal shutdown.
7. Compensation: Internal compensation simplifies design and reduces external component count.
8. Thermal Performance: Available in a thermally enhanced 16-pin QFN package for efficient heat dissipation.
9. Low Dropout: Supports low-dropout operation, enhancing performance in battery-powered applications.
These features make the TPS54426RSAR suitable for a variety of applications, including computing, consumer electronics, and industrial systems.
Pinout
The TPS54426RSAR is a step-down converter from Texas Instruments. It comes in a 16-pin package known as the QFN (Quad Flat No-leads). The key functions of the pins are as follows:
1. VIN (Pin 1, 2): Input supply voltage.
2. EN (Pin 3): Enable pin to turn the device on or off.
3. SS/TR (Pin 4): Soft-start and tracking function.
4. COMP (Pin 5): Compensation for the control loop.
5. FB (Pin 6): Feedback to set the output voltage.
6. RT/CLK (Pin 7): Sets the switching frequency and allows for synchronization.
7. PGOOD (Pin 8): Power good indicator.
8. BOOT (Pin 9): Bootstrap capacitor connection.
9. SW (Pin 10, 11, 12): Switch node for the output inductor.
10. GND (Pin 13, 14): Ground.
11. VREG5 (Pin 15): 5V regulator output.
12. VREG3 (Pin 16): 3.3V regulator output.
This configuration supports its function as a high-efficiency synchronous buck converter designed for a wide range of applications.
1. VIN (Pin 1, 2): Input supply voltage.
2. EN (Pin 3): Enable pin to turn the device on or off.
3. SS/TR (Pin 4): Soft-start and tracking function.
4. COMP (Pin 5): Compensation for the control loop.
5. FB (Pin 6): Feedback to set the output voltage.
6. RT/CLK (Pin 7): Sets the switching frequency and allows for synchronization.
7. PGOOD (Pin 8): Power good indicator.
8. BOOT (Pin 9): Bootstrap capacitor connection.
9. SW (Pin 10, 11, 12): Switch node for the output inductor.
10. GND (Pin 13, 14): Ground.
11. VREG5 (Pin 15): 5V regulator output.
12. VREG3 (Pin 16): 3.3V regulator output.
This configuration supports its function as a high-efficiency synchronous buck converter designed for a wide range of applications.
Manufacturer
The TPS54426RSAR is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company headquartered in Dallas, Texas. It specializes in the design and manufacture of semiconductors and various integrated circuits, which are sold to electronics designers and manufacturers globally. The company is one of the top semiconductor companies in the world and is especially known for its development of analog chips and embedded processors. Texas Instruments serves a wide range of markets, including industrial, automotive, personal electronics, communications equipment, and enterprise systems.
Application
The TPS54426RSAR is a synchronous buck converter designed for applications requiring efficient power management and voltage regulation. Its primary application areas include:
1. Consumer Electronics: Powering microcontrollers, FPGAs, or other digital circuits in devices like smartphones, tablets, and gaming consoles.
2. Industrial Automation: Used in control systems, sensors, and other components requiring stable power.
3. Networking Equipment: Provides power to routers, switches, and modems.
4. Computing: Ideal for powering peripherals and components in desktops and servers.
5. Telecommunications: Supports infrastructure equipment by managing power delivery efficiently.
These applications benefit from the TPS54426RSAR's high efficiency, compact size, and reliable performance.
1. Consumer Electronics: Powering microcontrollers, FPGAs, or other digital circuits in devices like smartphones, tablets, and gaming consoles.
2. Industrial Automation: Used in control systems, sensors, and other components requiring stable power.
3. Networking Equipment: Provides power to routers, switches, and modems.
4. Computing: Ideal for powering peripherals and components in desktops and servers.
5. Telecommunications: Supports infrastructure equipment by managing power delivery efficiently.
These applications benefit from the TPS54426RSAR's high efficiency, compact size, and reliable performance.
Package
The TPS54426RSAR is a DC-DC buck converter from Texas Instruments, housed in a 16-pin QFN (Quad Flat No-leads) package. The specific package type is referred to as "RSA," which typically has compact dimensions and a low profile, making it suitable for space-constrained applications.
