Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | SWIFT™, D-CAP2™ |
| 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) | 23V |
| Voltage - Output (Min/Fixed) | 0.76V |
| Voltage - Output (Max) | 7V |
| Current - Output | 2A |
| Frequency - Switching | 600kHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Tổng quan
Description
The TPS54239DDAR is a step-down (buck) DC-DC converter from Texas Instruments. It is part of the TPS54239 family, designed to provide efficient power conversion in various applications. The device supports an input voltage range from 4.5V to 28V and delivers an adjustable output voltage ranging from 0.8V to 95% of the input voltage, with a continuous output current up to 2A.
Key features include a high switching frequency of 2MHz, which enables the use of smaller external components, enhancing compactness in design. It incorporates an adaptive on-time D-CAP2™ control mode, providing fast transient response and simplified loop compensation. The converter also features a low standby current, enhancing efficiency at light loads.
Additionally, the TPS54239DDAR includes various protection mechanisms such as current limit, overvoltage protection, and thermal shutdown, ensuring robust and reliable operation. The device is housed in a small, thermally enhanced 8-pin SO PowerPAD™ package, making it suitable for space-constrained applications like consumer electronics, telecommunications, and industrial equipment.
Key features include a high switching frequency of 2MHz, which enables the use of smaller external components, enhancing compactness in design. It incorporates an adaptive on-time D-CAP2™ control mode, providing fast transient response and simplified loop compensation. The converter also features a low standby current, enhancing efficiency at light loads.
Additionally, the TPS54239DDAR includes various protection mechanisms such as current limit, overvoltage protection, and thermal shutdown, ensuring robust and reliable operation. The device is housed in a small, thermally enhanced 8-pin SO PowerPAD™ package, making it suitable for space-constrained applications like consumer electronics, telecommunications, and industrial equipment.
Equivalent
The TPS54239DDAR is a synchronous buck converter. Equivalent products may include:
1. LMR33620 by Texas Instruments - A 2-A synchronous buck regulator.
2. MP2451 by Monolithic Power Systems - A 2-A step-down converter.
3. LM2596 by Texas Instruments - A 3-A step-down voltage regulator.
4. LT8608 by Analog Devices - A 1.5-A synchronous buck converter.
5. AP65211 by Diodes Incorporated - A 2-A synchronous buck converter.
Always check datasheets for compatibility and electrical specifications.
1. LMR33620 by Texas Instruments - A 2-A synchronous buck regulator.
2. MP2451 by Monolithic Power Systems - A 2-A step-down converter.
3. LM2596 by Texas Instruments - A 3-A step-down voltage regulator.
4. LT8608 by Analog Devices - A 1.5-A synchronous buck converter.
5. AP65211 by Diodes Incorporated - A 2-A synchronous buck converter.
Always check datasheets for compatibility and electrical specifications.
Features
The TPS54239DDAR is a synchronous step-down (buck) converter from Texas Instruments, designed for compact and efficient power management solutions. Key features include:
1. Wide Input Voltage Range: Operates from 4.5 V to 28 V, suitable for various consumer and industrial applications.
2. Output Current: Supports up to 2 A continuous output current.
3. High Efficiency: Achieves up to 95% efficiency through synchronous rectification.
4. Adjustable Output Voltage: Allows fine-tuning of the output voltage from 0.76 V to 7 V.
5. Fixed Switching Frequency: Operates at a nominal frequency of 700 kHz, optimizing size and efficiency.
6. Internal Compensation: Simplifies design by eliminating the need for external compensation components.
7. Low Quiescent Current: Minimizes power consumption in light-load conditions.
8. Soft-Start Feature: Reduces inrush current during start-up, enhancing system reliability.
9. Protection Features: Includes overcurrent, overvoltage, and thermal shutdown protections.
10. Compact Package: Available in a 10-pin VSON package, which is ideal for space-constrained designs.
These features make the TPS54239DDAR a versatile and efficient choice for power supply applications.
1. Wide Input Voltage Range: Operates from 4.5 V to 28 V, suitable for various consumer and industrial applications.
2. Output Current: Supports up to 2 A continuous output current.
3. High Efficiency: Achieves up to 95% efficiency through synchronous rectification.
4. Adjustable Output Voltage: Allows fine-tuning of the output voltage from 0.76 V to 7 V.
5. Fixed Switching Frequency: Operates at a nominal frequency of 700 kHz, optimizing size and efficiency.
6. Internal Compensation: Simplifies design by eliminating the need for external compensation components.
7. Low Quiescent Current: Minimizes power consumption in light-load conditions.
8. Soft-Start Feature: Reduces inrush current during start-up, enhancing system reliability.
9. Protection Features: Includes overcurrent, overvoltage, and thermal shutdown protections.
10. Compact Package: Available in a 10-pin VSON package, which is ideal for space-constrained designs.
These features make the TPS54239DDAR a versatile and efficient choice for power supply applications.
Pinout
The TPS54239DDAR is a step-down converter from Texas Instruments, typically housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here's a brief overview of its pin configuration and functions:
1. VIN: Supply input voltage for the IC.
2. EN: Enable pin to shut down the device.
3. SS/TR: Soft-start and tracking pin for setting the output voltage ramp up time.
4. GND: Ground pin for the device.
5. VSENSE: Feedback pin to set output voltage.
6. COMP: Compensation pin for stability and transient response.
7. RT/CLK: Resistor timing or synchronization clock input.
8. SW: Switch node, connected to the inductor and the internal high-side MOSFET.
This configuration facilitates efficient voltage regulation, suitable for applications requiring a compact, high-performance DC-DC conversion solution.
1. VIN: Supply input voltage for the IC.
2. EN: Enable pin to shut down the device.
3. SS/TR: Soft-start and tracking pin for setting the output voltage ramp up time.
4. GND: Ground pin for the device.
5. VSENSE: Feedback pin to set output voltage.
6. COMP: Compensation pin for stability and transient response.
7. RT/CLK: Resistor timing or synchronization clock input.
8. SW: Switch node, connected to the inductor and the internal high-side MOSFET.
This configuration facilitates efficient voltage regulation, suitable for applications requiring a compact, high-performance DC-DC conversion solution.
Manufacturer
The TPS54239DDAR is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. They are one of the largest semiconductor companies globally and primarily focus on developing analog chips and embedded processors, which are used in electronics across various industries, including automotive, industrial, personal electronics, and communications equipment. TI is known for its innovation in semiconductor technology and its extensive portfolio of products that help in the efficient management of electronic circuits.
Application
The TPS54239DDAR is a step-down (buck) switching regulator designed for applications requiring efficient power conversion. Key application areas include:
1. Consumer Electronics: Power supply for devices like tablets, smartphones, and wearables.
2. Industrial Systems: Used in automation equipment and industrial controllers for reliable power management.
3. Telecommunications: Powers networking equipment, routers, and modems.
4. Automotive Electronics: Suitable for infotainment systems and other in-car electronics.
5. Embedded Systems: Provides power for microcontrollers and FPGAs in various embedded applications.
6. Computing: Used in power management for hard drives, SSDs, and other peripherals.
These applications leverage its efficiency, compact size, and reliable performance.
1. Consumer Electronics: Power supply for devices like tablets, smartphones, and wearables.
2. Industrial Systems: Used in automation equipment and industrial controllers for reliable power management.
3. Telecommunications: Powers networking equipment, routers, and modems.
4. Automotive Electronics: Suitable for infotainment systems and other in-car electronics.
5. Embedded Systems: Provides power for microcontrollers and FPGAs in various embedded applications.
6. Computing: Used in power management for hard drives, SSDs, and other peripherals.
These applications leverage its efficiency, compact size, and reliable performance.
Package
The TPS54239DDAR is a step-down converter from Texas Instruments, available in an 8-pin SO PowerPAD package. The package type is designed to enhance thermal performance and reliability, suitable for compact and efficient power management applications.
