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TPS54329DDAR
IC REG BUCK ADJUSTABLE 3A 8SOPWR
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規格
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | D-CAP2™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 18V |
| Voltage-Output(Min/Fixed) | 0.76V |
| Voltage-Output(Max) | 7V |
| Current-Output | 3A |
| Frequency-Switching | 650kHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
概述
Description
The TPS54329DDAR is a high-efficiency synchronous step-down DC-DC converter designed by Texas Instruments. It is part of the TPS54329 family, recognized for its ability to deliver up to 3A of continuous output current from a 4.5V to 18V input voltage range, making it suitable for a variety of applications, including consumer electronics, industrial systems, and automotive equipment.
Key features of the TPS54329DDAR include a fixed-frequency operation at 700 kHz, an internal compensation to simplify the design process, and a low-power mode for light-load efficiency. It also offers precise control over output voltage with an adjustable output range between 0.8V and near input voltage. The converter integrates robust protection features like current limiting, thermal shutdown, and undervoltage lockout to ensure reliability and safety.
Packaged in a small, thermally enhanced SO-8 package, the TPS54329DDAR is designed for easy implementation in space-constrained applications. Its efficiency, compactness, and flexibility make it a popular choice among engineers designing power supply solutions.
Key features of the TPS54329DDAR include a fixed-frequency operation at 700 kHz, an internal compensation to simplify the design process, and a low-power mode for light-load efficiency. It also offers precise control over output voltage with an adjustable output range between 0.8V and near input voltage. The converter integrates robust protection features like current limiting, thermal shutdown, and undervoltage lockout to ensure reliability and safety.
Packaged in a small, thermally enhanced SO-8 package, the TPS54329DDAR is designed for easy implementation in space-constrained applications. Its efficiency, compactness, and flexibility make it a popular choice among engineers designing power supply solutions.
Features
The TPS54329DDAR is a high-efficiency synchronous buck converter designed by Texas Instruments. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 4.5V to 18V, making it versatile for various power supply applications.
2. Output Current: Capable of delivering up to 3A of continuous output current.
3. Efficiency: High efficiency of up to 95% due to its synchronous rectification.
4. Switching Frequency: Offers a switching frequency of 700kHz, which allows the use of smaller external components and reduced overall system size.
5. Integrated MOSFETs: Contains internal high-side and low-side MOSFETs, reducing the need for external components.
6. Adjustable Output Voltage: Provides an adjustable output voltage through an external resistor divider.
7. Soft Start: Features a programmable soft-start function to limit inrush current during startup.
8. Protection Features: Includes over-current protection, thermal shutdown, and under-voltage lockout for reliable operation.
9. Package: Comes in a space-saving 8-pin SO PowerPAD package for efficient heat dissipation.
This device is ideal for use in applications like consumer electronics, industrial equipment, and distributed power systems.
1. Input Voltage Range: It supports a wide input voltage range from 4.5V to 18V, making it versatile for various power supply applications.
2. Output Current: Capable of delivering up to 3A of continuous output current.
3. Efficiency: High efficiency of up to 95% due to its synchronous rectification.
4. Switching Frequency: Offers a switching frequency of 700kHz, which allows the use of smaller external components and reduced overall system size.
5. Integrated MOSFETs: Contains internal high-side and low-side MOSFETs, reducing the need for external components.
6. Adjustable Output Voltage: Provides an adjustable output voltage through an external resistor divider.
7. Soft Start: Features a programmable soft-start function to limit inrush current during startup.
8. Protection Features: Includes over-current protection, thermal shutdown, and under-voltage lockout for reliable operation.
9. Package: Comes in a space-saving 8-pin SO PowerPAD package for efficient heat dissipation.
This device is ideal for use in applications like consumer electronics, industrial equipment, and distributed power systems.
Package
The TPS54329DDAR is a DC-DC step-down converter from Texas Instruments, available in an 8-pin SO PowerPAD (DDA) package. The PowerPAD enhances thermal performance by providing a heat dissipation path.
Pinout
The TPS54329DDAR is a DC-DC buck converter from Texas Instruments. It is typically used for applications requiring high-efficiency step-down conversion from a higher voltage to a lower voltage. This device is available in an 8-pin package.
Here is a concise summary of its pin functions:
1. BOOT: Bootstrap capacitor connection for the high-side FET driver.
2. VIN: Input supply voltage.
3. EN: Enable pin to turn the device on or off.
4. GND: Ground reference.
5. SW: Switch node, connected to the inductor for power conversion.
6. FB: Feedback pin for output voltage regulation.
7. COMP: Compensation pin for stability and transient response tuning.
8. RT/CLK: Resistor timing or clock input for setting switching frequency.
These pins allow the TPS54329DDAR to efficiently regulate output voltage, adjust frequency, and enable or disable the device, all while maintaining stable operation with minimal external components.
Here is a concise summary of its pin functions:
1. BOOT: Bootstrap capacitor connection for the high-side FET driver.
2. VIN: Input supply voltage.
3. EN: Enable pin to turn the device on or off.
4. GND: Ground reference.
5. SW: Switch node, connected to the inductor for power conversion.
6. FB: Feedback pin for output voltage regulation.
7. COMP: Compensation pin for stability and transient response tuning.
8. RT/CLK: Resistor timing or clock input for setting switching frequency.
These pins allow the TPS54329DDAR to efficiently regulate output voltage, adjust frequency, and enable or disable the device, all while maintaining stable operation with minimal external components.
Manufacturer
The TPS54329DDAR is manufactured by Texas Instruments Incorporated. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. The company is known for its wide range of products, including analog chips and embedded processors, which are used in electronics across various industries such as automotive, industrial, personal electronics, communications, and enterprise systems. TI is recognized for its innovation in the semiconductor industry and is considered one of the leading global companies in this field.
Application
The TPS54329DDAR is a step-down (buck) converter used in power management applications. It is commonly applied in areas such as consumer electronics, telecommunications, networking equipment, and industrial automation. Its main function is to efficiently convert higher DC voltages to lower levels suitable for microprocessors, ASICs, and other digital circuits. This makes it ideal for use in systems requiring robust voltage regulation and high efficiency, such as embedded systems, point-of-load (POL) applications, and distributed power architectures.
Equivalent
The TPS54329DDAR is a step-down DC-DC converter from Texas Instruments. Comparable products include:
1. LM2596 from Texas Instruments
2. MP1584 from Monolithic Power Systems
3. LMR33630 from Texas Instruments
4. LTC3633 from Analog Devices
5. SY8120B from Silergy
These alternatives offer similar functionality in terms of voltage conversion and power management, but specifications such as efficiency, input voltage range, and output current capabilities might differ. Always verify compatibility with the specific requirements of your application.
1. LM2596 from Texas Instruments
2. MP1584 from Monolithic Power Systems
3. LMR33630 from Texas Instruments
4. LTC3633 from Analog Devices
5. SY8120B from Silergy
These alternatives offer similar functionality in terms of voltage conversion and power management, but specifications such as efficiency, input voltage range, and output current capabilities might differ. Always verify compatibility with the specific requirements of your application.
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