規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | Eco-Mode™ |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.5V |
| Voltage - Input (Max) | 28V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 25V |
| Current - Output | 3A |
| Frequency - Switching | 570kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
概述
Description
The TPS54331DR is a step-down (buck) DC-DC converter manufactured by Texas Instruments. It's part of the TPS54331 series, designed for efficient and compact power management solutions. This device is capable of delivering up to 3 A of continuous output current, making it suitable for powering a variety of mid-range applications.
Key features include an input voltage range from 3.5 V to 28 V and an adjustable output voltage down to as low as 0.8 V. It operates at a 570 kHz fixed switching frequency, which strikes a balance between efficiency and component size. The TPS54331DR incorporates integrated MOSFETs, reducing the need for external components and minimizing board space.
Additionally, it features various protection mechanisms, such as overcurrent protection, thermal shutdown, and undervoltage lockout to enhance reliability and safety. The device also supports external compensation, allowing designers to optimize transient response and stability over a wide range of loads and input voltages.
Overall, the TPS54331DR is a versatile and efficient solution for applications requiring reliable DC-DC conversion in a compact form factor.
Key features include an input voltage range from 3.5 V to 28 V and an adjustable output voltage down to as low as 0.8 V. It operates at a 570 kHz fixed switching frequency, which strikes a balance between efficiency and component size. The TPS54331DR incorporates integrated MOSFETs, reducing the need for external components and minimizing board space.
Additionally, it features various protection mechanisms, such as overcurrent protection, thermal shutdown, and undervoltage lockout to enhance reliability and safety. The device also supports external compensation, allowing designers to optimize transient response and stability over a wide range of loads and input voltages.
Overall, the TPS54331DR is a versatile and efficient solution for applications requiring reliable DC-DC conversion in a compact form factor.
Equivalent
The TPS54331DR is a 28V, 3A step-down (buck) converter from Texas Instruments. Equivalent products may include:
1. LM2596: A 3A step-down voltage regulator.
2. MP1584: A compact 3A, 28V step-down converter.
3. LM2673: A 3A, 40V step-down regulator.
4. AP1509: A 3A, 40V buck converter.
5. L4973: A 3.5A, 40V switching regulator.
These components offer similar functionality suitable for similar applications. Always check specific electrical characteristics and package compatibility.
1. LM2596: A 3A step-down voltage regulator.
2. MP1584: A compact 3A, 28V step-down converter.
3. LM2673: A 3A, 40V step-down regulator.
4. AP1509: A 3A, 40V buck converter.
5. L4973: A 3.5A, 40V switching regulator.
These components offer similar functionality suitable for similar applications. Always check specific electrical characteristics and package compatibility.
Features
The TPS54331DR is a step-down (buck) DC-DC converter from Texas Instruments, designed for efficient power management in electronic applications. Key features of the TPS54331DR include:
1. Input Voltage Range: Operates with an input voltage range of 3.5 V to 28 V.
2. Output Current: Capable of delivering up to 3 A of continuous output current.
3. Efficiency: High efficiency, up to 95%, due to advanced MOSFET technology and optimized switching.
4. Switching Frequency: Fixed switching frequency of 570 kHz, enabling compact solution size and less output ripple.
5. Thermal Performance: Comes in a thermally enhanced SOIC-8 package with an exposed pad for improved power dissipation.
6. Protection Features: Includes over-current protection, thermal shutdown, and undervoltage lockout for robust operation.
7. Soft Start: Built-in soft-start feature to reduce inrush current during startup.
8. Compensation: Internal loop compensation simplifies design and reduces external component count.
9. Applications: Suitable for applications like consumer electronics, telecom, and distributed power systems.
This device is ideal for power supply designs requiring a compact, efficient, and reliable step-down conversion solution.
1. Input Voltage Range: Operates with an input voltage range of 3.5 V to 28 V.
2. Output Current: Capable of delivering up to 3 A of continuous output current.
3. Efficiency: High efficiency, up to 95%, due to advanced MOSFET technology and optimized switching.
4. Switching Frequency: Fixed switching frequency of 570 kHz, enabling compact solution size and less output ripple.
5. Thermal Performance: Comes in a thermally enhanced SOIC-8 package with an exposed pad for improved power dissipation.
6. Protection Features: Includes over-current protection, thermal shutdown, and undervoltage lockout for robust operation.
7. Soft Start: Built-in soft-start feature to reduce inrush current during startup.
8. Compensation: Internal loop compensation simplifies design and reduces external component count.
9. Applications: Suitable for applications like consumer electronics, telecom, and distributed power systems.
This device is ideal for power supply designs requiring a compact, efficient, and reliable step-down conversion solution.
Pinout
The TPS54331DR is a 3-A, 28-V Step-Down Voltage Regulator from Texas Instruments, housed in an 8-pin SOIC package. Here is a brief overview of its pin functions:
1. BOOT (Pin 1): Supplies a bootstrap voltage for the high-side driver.
2. VIN (Pin 2): Input supply voltage, ranging from 3.5 V to 28 V.
3. EN (Pin 3): Enable pin to turn the regulator on or off. A high level enables the device.
4. COMP (Pin 4): Compensation pin for external compensation components to stabilize the control loop.
5. RT/CLK (Pin 5): Sets the switching frequency or synchronizes with an external clock.
6. GND (Pin 6): Ground connection.
7. SW (Pin 7): Switch node connected to the inductor.
8. VSENSE (Pin 8): Feedback pin for output voltage regulation.
The device is designed for high-efficiency conversion, providing a fixed output voltage or adjustable output over a wide input range, making it suitable for various applications in power management.
1. BOOT (Pin 1): Supplies a bootstrap voltage for the high-side driver.
2. VIN (Pin 2): Input supply voltage, ranging from 3.5 V to 28 V.
3. EN (Pin 3): Enable pin to turn the regulator on or off. A high level enables the device.
4. COMP (Pin 4): Compensation pin for external compensation components to stabilize the control loop.
5. RT/CLK (Pin 5): Sets the switching frequency or synchronizes with an external clock.
6. GND (Pin 6): Ground connection.
7. SW (Pin 7): Switch node connected to the inductor.
8. VSENSE (Pin 8): Feedback pin for output voltage regulation.
The device is designed for high-efficiency conversion, providing a fixed output voltage or adjustable output over a wide input range, making it suitable for various applications in power management.
Manufacturer
The manufacturer of the TPS54331DR is Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and solutions. It is primarily known for its development and production of analog chips and embedded processors, among other electronic devices. TI's products are used in various industries, including automotive, industrial, consumer electronics, and communications. The company is headquartered in Dallas, Texas, and has a long history dating back to its founding in 1930. TI is recognized for its innovation in technology and contribution to the electronics industry.
Application
The TPS54331DR is a step-down DC-DC converter commonly used in various applications due to its efficiency and compact size. Key application areas include:
1. Consumer Electronics: Used in powering devices like set-top boxes, TVs, and gaming consoles.
2. Industrial Equipment: Suitable for factory automation systems, power management in industrial controls, and LED lighting.
3. Telecommunications: Powers network equipment such as modems, routers, and switches.
4. Automotive Systems: Used in infotainment systems, dashboards, and electronic control units (ECUs).
5. Embedded Systems: Provides power solutions in microcontroller-based applications and IoT devices.
Its versatility in managing power efficiently makes it ideal for a wide range of applications requiring reliable voltage regulation.
1. Consumer Electronics: Used in powering devices like set-top boxes, TVs, and gaming consoles.
2. Industrial Equipment: Suitable for factory automation systems, power management in industrial controls, and LED lighting.
3. Telecommunications: Powers network equipment such as modems, routers, and switches.
4. Automotive Systems: Used in infotainment systems, dashboards, and electronic control units (ECUs).
5. Embedded Systems: Provides power solutions in microcontroller-based applications and IoT devices.
Its versatility in managing power efficiently makes it ideal for a wide range of applications requiring reliable voltage regulation.
Package
The TPS54331DR is a step-down DC-DC converter from Texas Instruments, housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. This type of package, often referred to as SOIC-8 or D package, is suitable for surface-mount technology (SMT) and provides a compact solution for various power management applications.
