Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Bulk,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 | 2A |
| Frequency - Switching | 570kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
Tổng quan
Description
The TPS54231D is a highly efficient, step-down DC-DC converter from Texas Instruments, designed to deliver up to 2 A of continuous output current. It is part of the TPS5423x family and operates with a high switching frequency, which allows for the use of smaller output inductors and capacitors, contributing to a compact design. The device features a wide input voltage range of 3.5 V to 28 V, making it suitable for various applications, including battery-powered devices, distributed power systems, and point-of-load applications.
Key features include an adjustable output voltage ranging from 0.8 V to a maximum of 26 V, an integrated high-side MOSFET, and a low dropout voltage, enhancing its overall efficiency. The TPS54231D also incorporates several protection features, such as current limiting, thermal shutdown, and undervoltage lockout, ensuring robust performance. Its soft-start function helps to minimize inrush current during startup. The device comes in a compact, thermally enhanced 8-pin SOIC and 10-pin MSOP package, making it a versatile and reliable choice for engineers seeking a cost-effective power management solution.
Key features include an adjustable output voltage ranging from 0.8 V to a maximum of 26 V, an integrated high-side MOSFET, and a low dropout voltage, enhancing its overall efficiency. The TPS54231D also incorporates several protection features, such as current limiting, thermal shutdown, and undervoltage lockout, ensuring robust performance. Its soft-start function helps to minimize inrush current during startup. The device comes in a compact, thermally enhanced 8-pin SOIC and 10-pin MSOP package, making it a versatile and reliable choice for engineers seeking a cost-effective power management solution.
Equivalent
The TPS54231D is a step-down DC-DC converter. Equivalent products include:
1. LM2596 by Texas Instruments: A common step-down voltage regulator.
2. MP1584 by Monolithic Power Systems: A compact, efficient buck converter.
3. LM2675 by Texas Instruments: A similar switching regulator.
4. AP3211 by Diodes Incorporated: A step-down converter with similar specs.
5. SY8208B by Silergy: Offers comparable functionality in a smaller package.
Always verify specific requirements and design constraints when selecting alternatives.
1. LM2596 by Texas Instruments: A common step-down voltage regulator.
2. MP1584 by Monolithic Power Systems: A compact, efficient buck converter.
3. LM2675 by Texas Instruments: A similar switching regulator.
4. AP3211 by Diodes Incorporated: A step-down converter with similar specs.
5. SY8208B by Silergy: Offers comparable functionality in a smaller package.
Always verify specific requirements and design constraints when selecting alternatives.
Features
The TPS54231D is a step-down DC-DC converter that offers a range of features suitable for various power management applications. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 3.5V to 28V, making it versatile for different power sources.
2. Output Current: The device can deliver up to 2A of continuous output current, ideal for moderate power needs.
3. Efficiency: High efficiency up to 95%, aided by its 110mΩ integrated high-side MOSFET.
4. Switching Frequency: Fixed 570 kHz switching frequency for compact design and reduced external component size.
5. Soft Start: Internal slow-start circuit to limit inrush current during power-up.
6. Over-Current Protection: Built-in over-current protection for reliability and safety.
7. Thermal Shutdown: Automatic shutdown in case of overheating to prevent damage.
8. Low Dropout: Supports low dropout operation by allowing the output voltage to remain stable as the input voltage nears the output voltage.
9. Package: Available in an 8-pin SOIC package, making it easy to integrate into various designs.
These features make the TPS54231D suitable for applications like consumer electronics, industrial equipment, and distributed power systems.
1. Input Voltage Range: It supports a wide input voltage range from 3.5V to 28V, making it versatile for different power sources.
2. Output Current: The device can deliver up to 2A of continuous output current, ideal for moderate power needs.
3. Efficiency: High efficiency up to 95%, aided by its 110mΩ integrated high-side MOSFET.
4. Switching Frequency: Fixed 570 kHz switching frequency for compact design and reduced external component size.
5. Soft Start: Internal slow-start circuit to limit inrush current during power-up.
6. Over-Current Protection: Built-in over-current protection for reliability and safety.
7. Thermal Shutdown: Automatic shutdown in case of overheating to prevent damage.
8. Low Dropout: Supports low dropout operation by allowing the output voltage to remain stable as the input voltage nears the output voltage.
9. Package: Available in an 8-pin SOIC package, making it easy to integrate into various designs.
These features make the TPS54231D suitable for applications like consumer electronics, industrial equipment, and distributed power systems.
Pinout
The TPS54231D is a step-down (buck) DC-DC converter produced by Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin functions:
1. BOOT (Pin 1): This pin connects to a bootstrap capacitor to drive the gate of the high-side MOSFET.
2. VIN (Pin 2): This is the input voltage supply pin for the converter.
3. SW (Pin 3): This is the switch node where the inductor is connected. It acts as an output for the converter's switching action.
4. GND (Pin 4): Ground reference pin for the device.
5. VSENSE (Pin 5): Feedback pin where the output voltage is sensed for regulation.
6. COMP (Pin 6): This is the compensation pin for connecting the external compensation network.
7. EN (Pin 7): Enable pin to turn the device on or off. A high level enables the device.
8. RT/CLK (Pin 8): This pin sets the switching frequency or synchronizes the converter to an external clock.
These pins collectively allow the TPS54231D to efficiently convert a higher input voltage to a lower output voltage, suitable for various electronic applications.
1. BOOT (Pin 1): This pin connects to a bootstrap capacitor to drive the gate of the high-side MOSFET.
2. VIN (Pin 2): This is the input voltage supply pin for the converter.
3. SW (Pin 3): This is the switch node where the inductor is connected. It acts as an output for the converter's switching action.
4. GND (Pin 4): Ground reference pin for the device.
5. VSENSE (Pin 5): Feedback pin where the output voltage is sensed for regulation.
6. COMP (Pin 6): This is the compensation pin for connecting the external compensation network.
7. EN (Pin 7): Enable pin to turn the device on or off. A high level enables the device.
8. RT/CLK (Pin 8): This pin sets the switching frequency or synchronizes the converter to an external clock.
These pins collectively allow the TPS54231D to efficiently convert a higher input voltage to a lower output voltage, suitable for various electronic applications.
Manufacturer
The TPS54231D is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. Their products are used in a wide array of electronic devices, including industrial, automotive, personal electronics, communications equipment, and enterprise systems. TI is particularly well-known for its analog chips and embedded processors, which form the backbone of many modern electronic systems. The company is headquartered in Dallas, Texas, and has a global presence, with manufacturing, design, and sales operations in more than 30 countries.
Application
The TPS54231D is a step-down (buck) DC-DC converter primarily used in applications requiring efficient power management. Key application areas include:
1. Consumer Electronics: Power supply for devices like set-top boxes, televisions, and home audio equipment.
2. Industrial Systems: Used in power management for industrial automation and control systems.
3. Telecommunications: Provides power solutions in networking equipment like routers and switches.
4. Automotive Systems: Used in infotainment systems and other low-power applications within vehicles.
5. Computing: Offers power management for notebooks, desktops, and peripheral devices.
Its versatility in delivering up to 2 A output current makes it suitable for various low-to-medium power applications.
1. Consumer Electronics: Power supply for devices like set-top boxes, televisions, and home audio equipment.
2. Industrial Systems: Used in power management for industrial automation and control systems.
3. Telecommunications: Provides power solutions in networking equipment like routers and switches.
4. Automotive Systems: Used in infotainment systems and other low-power applications within vehicles.
5. Computing: Offers power management for notebooks, desktops, and peripheral devices.
Its versatility in delivering up to 2 A output current makes it suitable for various low-to-medium power applications.
Package
The TPS54231D is a DC-DC buck converter from Texas Instruments, and it is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package, denoted as "D" in the part number.
