Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tube |
| 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 |
Tổng quan
Description
The TPS54331D is a step-down (buck) converter from Texas Instruments, designed for efficient power management in electronic devices. It integrates a high-efficiency synchronous buck regulator capable of delivering up to 3 A of continuous output current. The device operates with an input voltage range of 3.5 V to 28 V, making it suitable for a variety of applications, including consumer electronics, industrial systems, and communication devices.
Key features of the TPS54331D include a low dropout voltage, a fixed switching frequency of 570 kHz, and a high-efficiency operation, which helps minimize heat dissipation and extend battery life. The converter also incorporates an internal compensation network, reducing the need for external components and simplifying design. Additionally, the TPS54331D provides protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout to enhance system reliability.
The compact and thermally efficient design of the TPS54331D, available in an 8-pin SOIC package, makes it an ideal choice for space-constrained applications requiring robust power conversion solutions.
Key features of the TPS54331D include a low dropout voltage, a fixed switching frequency of 570 kHz, and a high-efficiency operation, which helps minimize heat dissipation and extend battery life. The converter also incorporates an internal compensation network, reducing the need for external components and simplifying design. Additionally, the TPS54331D provides protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout to enhance system reliability.
The compact and thermally efficient design of the TPS54331D, available in an 8-pin SOIC package, makes it an ideal choice for space-constrained applications requiring robust power conversion solutions.
Equivalent
Equivalent products to the TPS54331D chip, which is a step-down DC-DC converter, include:
1. LM2596 from Texas Instruments
2. LM2675 from Texas Instruments
3. MP1584 from Monolithic Power Systems
4. LMR16030 from Texas Instruments
5. AP1509 from Diodes Incorporated
These alternatives offer similar voltage and current specifications suitable for various power supply applications. Always check the datasheets for compatibility with your specific requirements.
1. LM2596 from Texas Instruments
2. LM2675 from Texas Instruments
3. MP1584 from Monolithic Power Systems
4. LMR16030 from Texas Instruments
5. AP1509 from Diodes Incorporated
These alternatives offer similar voltage and current specifications suitable for various power supply applications. Always check the datasheets for compatibility with your specific requirements.
Features
The TPS54331D is a 28-V, 3-A, step-down (buck) voltage regulator designed for various power management applications. Key features include:
1. Wide Input Voltage Range: Supports input voltages from 3.5 V to 28 V, accommodating a variety of power sources.
2. Output Current: Capable of delivering up to 3 A of output current.
3. Efficiency: High efficiency due to the use of low RDS(on) MOSFETs and synchronous rectification.
4. Adjustable Output Voltage: Offers an adjustable output voltage through external resistors, down to as low as 0.8 V.
5. Switching Frequency: Fixed switching frequency of 570 kHz for a balance of efficiency and component size.
6. Protection Features: Includes cycle-by-cycle current limit, thermal shutdown, and undervoltage lockout for enhanced reliability.
7. Soft Start: Programmable soft-start feature to control the inrush current during startup.
8. Internal Compensation: Simplifies design by integrating internal loop compensation.
The TPS54331D is suitable for applications requiring compact size, high efficiency, and reliable performance, such as consumer electronics, industrial equipment, and networking devices.
1. Wide Input Voltage Range: Supports input voltages from 3.5 V to 28 V, accommodating a variety of power sources.
2. Output Current: Capable of delivering up to 3 A of output current.
3. Efficiency: High efficiency due to the use of low RDS(on) MOSFETs and synchronous rectification.
4. Adjustable Output Voltage: Offers an adjustable output voltage through external resistors, down to as low as 0.8 V.
5. Switching Frequency: Fixed switching frequency of 570 kHz for a balance of efficiency and component size.
6. Protection Features: Includes cycle-by-cycle current limit, thermal shutdown, and undervoltage lockout for enhanced reliability.
7. Soft Start: Programmable soft-start feature to control the inrush current during startup.
8. Internal Compensation: Simplifies design by integrating internal loop compensation.
The TPS54331D is suitable for applications requiring compact size, high efficiency, and reliable performance, such as consumer electronics, industrial equipment, and networking devices.
Pinout
The TPS54331D is a DC-DC step-down (buck) converter integrated circuit manufactured by Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here's a concise summary of its pin count and function:
1. Pin Count: 8 pins
2. Pin Functions:
- Pin 1 (BOOT): Supplies the drive voltage for the high-side N-channel MOSFET switch.
- Pin 2 (VIN): Input voltage supply pin for the power stage.
- Pin 3 (EN): Enable pin; a high level turns on the device, and a low level turns it off.
- Pin 4 (SS/TR): Soft-start or tracking pin; used to control the output voltage ramp-up.
- Pin 5 (GND): Ground pin; the return path for all internal and switching current.
- Pin 6 (VSENSE): Feedback pin to sense the output voltage for regulation.
- Pin 7 (COMP): Compensation pin; connected to external components to stabilize the control loop.
- Pin 8 (PH): Switching node connection; it is connected to the inductor and acts as the path for the switching current.
The TPS54331D is used in applications requiring a regulated output voltage, sourced from a higher input voltage, with efficiencies enabled by its internal switching methods.
1. Pin Count: 8 pins
2. Pin Functions:
- Pin 1 (BOOT): Supplies the drive voltage for the high-side N-channel MOSFET switch.
- Pin 2 (VIN): Input voltage supply pin for the power stage.
- Pin 3 (EN): Enable pin; a high level turns on the device, and a low level turns it off.
- Pin 4 (SS/TR): Soft-start or tracking pin; used to control the output voltage ramp-up.
- Pin 5 (GND): Ground pin; the return path for all internal and switching current.
- Pin 6 (VSENSE): Feedback pin to sense the output voltage for regulation.
- Pin 7 (COMP): Compensation pin; connected to external components to stabilize the control loop.
- Pin 8 (PH): Switching node connection; it is connected to the inductor and acts as the path for the switching current.
The TPS54331D is used in applications requiring a regulated output voltage, sourced from a higher input voltage, with efficiencies enabled by its internal switching methods.
Manufacturer
The TPS54331D is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. It is renowned for producing products that serve various applications in sectors like automotive, industrial, personal electronics, and communications equipment. Texas Instruments emphasizes innovation in analog and embedded processing, which are critical for the development of advanced electronics systems.
Application
The TPS54331D is a step-down DC-DC converter commonly used in various applications due to its efficiency and compact size. Key application areas include:
1. Telecommunications: Power supply for networking equipment and base stations.
2. Automotive: Power regulation in infotainment systems and ECU modules.
3. Industrial Equipment: Motor drives and control systems.
4. Consumer Electronics: Power management in devices like gaming consoles and set-top boxes.
5. Distributed Power Systems: Voltage regulation for point-of-load converters.
6. Computing: Power regulation for motherboards and graphic cards.
Its versatility makes it suitable for any application requiring efficient voltage conversion.
1. Telecommunications: Power supply for networking equipment and base stations.
2. Automotive: Power regulation in infotainment systems and ECU modules.
3. Industrial Equipment: Motor drives and control systems.
4. Consumer Electronics: Power management in devices like gaming consoles and set-top boxes.
5. Distributed Power Systems: Voltage regulation for point-of-load converters.
6. Computing: Power regulation for motherboards and graphic cards.
Its versatility makes it suitable for any application requiring efficient voltage conversion.
Package
The TPS54331D is a step-down converter from Texas Instruments and is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package.
