仕様
| 属性 | 値 |
| Package | Bulk,Tube |
| Series | Eco-Mode™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 3.5V |
| Voltage-Input(Max) | 42V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 39V |
| Current-Output | 1.5A |
| Frequency-Switching | 100kHz ~ 2.5MHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 10-PowerTFSOP, 10-MSOP (0.118, 3.00mm Width) |
概要
Description
The TPS54140DGQ is a high-efficiency buck converter from Texas Instruments, designed for step-down voltage applications. It operates over a wide input voltage range of 3.5V to 42V, making it versatile for various power supply applications. The device can deliver up to 1.5A of continuous output current, which is suitable for powering processors, FPGA, and other digital systems.
Key features include a 570kHz fixed switching frequency for a balance between efficiency and component size, and an adjustable output voltage range from 0.8V to the input voltage. The TPS54140DGQ also integrates overcurrent protection, thermal shutdown, and undervoltage lockout to enhance reliability.
The device uses a current mode control scheme, which simplifies compensation and improves transient response. Its compact 10-pin MSOP-PowerPAD package allows for efficient heat dissipation. The TPS54140DGQ is ideal for automotive, industrial, and telecom applications, offering a robust solution for demanding power requirements.
Key features include a 570kHz fixed switching frequency for a balance between efficiency and component size, and an adjustable output voltage range from 0.8V to the input voltage. The TPS54140DGQ also integrates overcurrent protection, thermal shutdown, and undervoltage lockout to enhance reliability.
The device uses a current mode control scheme, which simplifies compensation and improves transient response. Its compact 10-pin MSOP-PowerPAD package allows for efficient heat dissipation. The TPS54140DGQ is ideal for automotive, industrial, and telecom applications, offering a robust solution for demanding power requirements.
Equivalent
The TPS54140DGQ is a DC-DC buck converter from Texas Instruments. Equivalent products include:
1. LM2596 - by Texas Instruments, similar in functionality.
2. LM2675 - by Texas Instruments, with similar output current capabilities.
3. MP1584 - by Monolithic Power Systems, a compact buck converter.
4. LTC3115-1 - by Analog Devices, featuring similar input voltage range.
5. MAX16903 - by Maxim Integrated, for automotive applications.
Always check datasheets to ensure compatibility with specific requirements.
1. LM2596 - by Texas Instruments, similar in functionality.
2. LM2675 - by Texas Instruments, with similar output current capabilities.
3. MP1584 - by Monolithic Power Systems, a compact buck converter.
4. LTC3115-1 - by Analog Devices, featuring similar input voltage range.
5. MAX16903 - by Maxim Integrated, for automotive applications.
Always check datasheets to ensure compatibility with specific requirements.
Features
The TPS54140DGQ is a versatile DC-DC buck converter with numerous features:
1. Wide Input Voltage Range: It supports an input voltage range from 3.5 V to 42 V, making it suitable for a variety of applications.
2. Output Current: The device can deliver up to 0.5 A of continuous output current.
3. Efficiency: It offers high efficiency, typically over 90%, thanks to its use of advanced control technology.
4. Switching Frequency: The device operates at a fixed switching frequency of 500 kHz, allowing for smaller external components.
5. Soft-Start Functionality: It includes an adjustable soft-start feature to limit inrush current during startup.
6. Protection Features: The TPS54140DGQ provides overcurrent protection, overvoltage protection, thermal shutdown, and undervoltage lockout to enhance system reliability.
7. Thermal Performance: The device is designed to handle high power dissipation with an integrated thermal pad for better heat management.
8. Package: It is available in a small 10-pin MSOP package, which is space-efficient for compact designs.
These features make the TPS54140DGQ suitable for applications in industrial, automotive, and consumer electronics.
1. Wide Input Voltage Range: It supports an input voltage range from 3.5 V to 42 V, making it suitable for a variety of applications.
2. Output Current: The device can deliver up to 0.5 A of continuous output current.
3. Efficiency: It offers high efficiency, typically over 90%, thanks to its use of advanced control technology.
4. Switching Frequency: The device operates at a fixed switching frequency of 500 kHz, allowing for smaller external components.
5. Soft-Start Functionality: It includes an adjustable soft-start feature to limit inrush current during startup.
6. Protection Features: The TPS54140DGQ provides overcurrent protection, overvoltage protection, thermal shutdown, and undervoltage lockout to enhance system reliability.
7. Thermal Performance: The device is designed to handle high power dissipation with an integrated thermal pad for better heat management.
8. Package: It is available in a small 10-pin MSOP package, which is space-efficient for compact designs.
These features make the TPS54140DGQ suitable for applications in industrial, automotive, and consumer electronics.
Pinout
The TPS54140DGQ is a step-down DC-DC converter IC by Texas Instruments. It is part of the TPS54140 series and is housed in an 8-pin HVSSOP (PowerPAD) package. Here is a brief overview of its pin functions:
1. BOOT (Pin 1): Provides the necessary gate drive voltage for the high-side N-channel MOSFET.
2. VIN (Pin 2): Input voltage supply pin for the device, typically ranging from 3.5V to 42V.
3. SW (Pin 3): The switch node pin, which is connected to the internal MOSFET, inductor, and diode.
4. GND (Pin 4): Ground pin for both the power and control circuitry.
5. VSENSE (Pin 5): Feedback pin used to set the output voltage via a resistor divider network.
6. COMP (Pin 6): Compensation pin for stabilizing the control loop by connecting to a compensation network.
7. ENA (Pin 7): Enable pin to turn the device on or off. A high level enables the device.
8. RT/CLK (Pin 8): Sets the switching frequency and allows synchronization to an external clock.
This IC is designed for efficient voltage conversion in various applications, such as consumer electronics and industrial equipment.
1. BOOT (Pin 1): Provides the necessary gate drive voltage for the high-side N-channel MOSFET.
2. VIN (Pin 2): Input voltage supply pin for the device, typically ranging from 3.5V to 42V.
3. SW (Pin 3): The switch node pin, which is connected to the internal MOSFET, inductor, and diode.
4. GND (Pin 4): Ground pin for both the power and control circuitry.
5. VSENSE (Pin 5): Feedback pin used to set the output voltage via a resistor divider network.
6. COMP (Pin 6): Compensation pin for stabilizing the control loop by connecting to a compensation network.
7. ENA (Pin 7): Enable pin to turn the device on or off. A high level enables the device.
8. RT/CLK (Pin 8): Sets the switching frequency and allows synchronization to an external clock.
This IC is designed for efficient voltage conversion in various applications, such as consumer electronics and industrial equipment.
Manufacturer
The TPS54140DGQ is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are sold to electronics designers and manufacturers globally. The company is well-known for its significant role in the development and production of analog chips and embedded processors, which are used in a wide range of electronics, including industrial, automotive, personal electronics, and communications equipment. TI is recognized as a leader in the semiconductor industry and is one of the largest manufacturers of semiconductors worldwide.
Application
The TPS54140DGQ is a step-down (buck) DC-DC converter commonly used in applications requiring efficient voltage regulation. Its application areas include:
1. Industrial Automation: Power supply for control systems and sensors.
2. Telecommunications: Powering network equipment and base stations.
3. Consumer Electronics: Used in DVDs, digital TVs, and set-top boxes.
4. Automotive Systems: Provides stable power for infotainment and electronic control units.
5. Embedded Systems: Supplies power to microcontrollers and other low-voltage components.
6. Battery-Powered Devices: Ensures efficient power management to extend battery life.
Its wide input voltage range and high efficiency make it suitable for a variety of power management tasks.
1. Industrial Automation: Power supply for control systems and sensors.
2. Telecommunications: Powering network equipment and base stations.
3. Consumer Electronics: Used in DVDs, digital TVs, and set-top boxes.
4. Automotive Systems: Provides stable power for infotainment and electronic control units.
5. Embedded Systems: Supplies power to microcontrollers and other low-voltage components.
6. Battery-Powered Devices: Ensures efficient power management to extend battery life.
Its wide input voltage range and high efficiency make it suitable for a variety of power management tasks.
Package
The TPS54140DGQ is a step-down converter from Texas Instruments, offered in an 10-pin HVSSOP (PowerPAD) package. This package type allows for efficient thermal performance and compact design, suitable for space-constrained applications.
