規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.2V |
| Voltage-Input(Max) | 28V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 24V |
| Current-Output | 3A |
| Frequency-Switching | 570kHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
概述
Description
The TPS54334DDAR is a high-efficiency, synchronous buck converter from Texas Instruments, designed for step-down voltage applications. It features a wide input voltage range from 4.5V to 28V, making it suitable for various applications like telecommunications, consumer electronics, and industrial equipment.
This converter can deliver up to 3A of continuous output current, with an adjustable output voltage as low as 0.8V. It operates at a fixed switching frequency of 500 kHz, which optimizes efficiency while maintaining a compact design by reducing the size of external components such as inductors and capacitors.
The TPS54334DDAR incorporates advanced features like pulse-skipping mode operation for improved light-load efficiency, thermal shutdown for component protection, and an enable pin for precise output voltage sequencing. It also includes a soft-start feature to control inrush current during startup.
Packaged in a 8-pin SO PowerPAD™ (DDPAK) package, the TPS54334DDAR is well-suited for space-constrained applications, offering a reliable and efficient solution for power management in a variety of electronic systems.
This converter can deliver up to 3A of continuous output current, with an adjustable output voltage as low as 0.8V. It operates at a fixed switching frequency of 500 kHz, which optimizes efficiency while maintaining a compact design by reducing the size of external components such as inductors and capacitors.
The TPS54334DDAR incorporates advanced features like pulse-skipping mode operation for improved light-load efficiency, thermal shutdown for component protection, and an enable pin for precise output voltage sequencing. It also includes a soft-start feature to control inrush current during startup.
Packaged in a 8-pin SO PowerPAD™ (DDPAK) package, the TPS54334DDAR is well-suited for space-constrained applications, offering a reliable and efficient solution for power management in a variety of electronic systems.
Equivalent
The TPS54334DDAR is a step-down (buck) converter from Texas Instruments. Equivalent products from other manufacturers include:
1. LM2596 by Texas Instruments and other manufacturers – a popular 3A step-down voltage regulator.
2. MP1584 by Monolithic Power Systems – a 3A, 28V step-down converter.
3. LTC3633 by Analog Devices – a dual-output, high-efficiency buck regulator.
4. XL4015 by XLSEMI – a 5A, 180KHz buck converter.
Always consult datasheets to ensure full compatibility with your specific needs.
1. LM2596 by Texas Instruments and other manufacturers – a popular 3A step-down voltage regulator.
2. MP1584 by Monolithic Power Systems – a 3A, 28V step-down converter.
3. LTC3633 by Analog Devices – a dual-output, high-efficiency buck regulator.
4. XL4015 by XLSEMI – a 5A, 180KHz buck converter.
Always consult datasheets to ensure full compatibility with your specific needs.
Features
The TPS54334DDAR is a high-efficiency synchronous buck converter from Texas Instruments. Key features include:
1. Input Voltage Range: Supports a wide input voltage range from 4.5V to 28V, suitable for various applications.
2. Output Current: Provides a continuous output current of up to 3.5A.
3. Switching Frequency: Operates at a fixed frequency of 700 kHz, optimizing size and efficiency.
4. Efficiency: Offers high efficiency with integrated high-side and low-side MOSFETs.
5. Adjustable Output Voltage: Features an adjustable output voltage via external resistors.
6. Soft Start: Includes a programmable soft-start feature to control inrush current during startup.
7. Protection Features: Equipped with overcurrent protection, thermal shutdown, and undervoltage lockout to ensure safety and reliability.
8. Package: Available in a thermally enhanced 8-pin SO PowerPAD™ package for better heat dissipation.
9. Applications: Ideal for use in consumer electronics, distributed power systems, industrial applications, and point-of-load power supplies.
These features make the TPS54334DDAR a versatile choice for efficient power conversion in various electronic applications.
1. Input Voltage Range: Supports a wide input voltage range from 4.5V to 28V, suitable for various applications.
2. Output Current: Provides a continuous output current of up to 3.5A.
3. Switching Frequency: Operates at a fixed frequency of 700 kHz, optimizing size and efficiency.
4. Efficiency: Offers high efficiency with integrated high-side and low-side MOSFETs.
5. Adjustable Output Voltage: Features an adjustable output voltage via external resistors.
6. Soft Start: Includes a programmable soft-start feature to control inrush current during startup.
7. Protection Features: Equipped with overcurrent protection, thermal shutdown, and undervoltage lockout to ensure safety and reliability.
8. Package: Available in a thermally enhanced 8-pin SO PowerPAD™ package for better heat dissipation.
9. Applications: Ideal for use in consumer electronics, distributed power systems, industrial applications, and point-of-load power supplies.
These features make the TPS54334DDAR a versatile choice for efficient power conversion in various electronic applications.
Pinout
The TPS54334DDAR is a step-down converter with a total of 8 pins. Here is a concise overview of its pin functions:
1. BOOT: Supplies a drive voltage to the high-side N-channel MOSFET gate driver.
2. VIN: Input voltage supply pin for the device.
3. EN: Enable pin, which turns the device on or off.
4. GND: Ground reference for the device.
5. SW: Switch node, connected to the inductor and the internal switch.
6. FB: Feedback pin for setting the output voltage via an external resistor divider.
7. COMP: Compensation pin used to stabilize the control loop with an external RC network.
8. RT/CLK: Used to set the switching frequency or synchronize to an external clock.
The TPS54334 is designed for efficient power conversion and regulation, typically used in applications requiring a reliable step-down power supply.
1. BOOT: Supplies a drive voltage to the high-side N-channel MOSFET gate driver.
2. VIN: Input voltage supply pin for the device.
3. EN: Enable pin, which turns the device on or off.
4. GND: Ground reference for the device.
5. SW: Switch node, connected to the inductor and the internal switch.
6. FB: Feedback pin for setting the output voltage via an external resistor divider.
7. COMP: Compensation pin used to stabilize the control loop with an external RC network.
8. RT/CLK: Used to set the switching frequency or synchronize to an external clock.
The TPS54334 is designed for efficient power conversion and regulation, typically used in applications requiring a reliable step-down power supply.
Manufacturer
The TPS54334DDAR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of analog and embedded processing chips. TI's products are used in various applications, including automotive, industrial, personal electronics, communications, and enterprise systems. The company is well-known for its innovation in analog technology, power management, and signal processing. Texas Instruments is headquartered in Dallas, Texas, and is a key player in the semiconductor industry with a focus on research and development to drive technological advancements.
Application
The TPS54334DDAR is a step-down DC-DC converter commonly used in various applications due to its efficiency and compact design. Key application areas include:
1. Industrial Power Systems: Provides efficient voltage regulation for industrial equipment.
2. Consumer Electronics: Powers devices like televisions, gaming consoles, and set-top boxes.
3. Automotive Systems: Used in infotainment systems and electronic control units.
4. Telecommunications: Supports power supplies for network equipment and base stations.
5. Computing: Integral in motherboards and graphic cards for smooth power delivery.
Its wide input voltage range and high efficiency make it versatile for both low-power and high-power applications.
1. Industrial Power Systems: Provides efficient voltage regulation for industrial equipment.
2. Consumer Electronics: Powers devices like televisions, gaming consoles, and set-top boxes.
3. Automotive Systems: Used in infotainment systems and electronic control units.
4. Telecommunications: Supports power supplies for network equipment and base stations.
5. Computing: Integral in motherboards and graphic cards for smooth power delivery.
Its wide input voltage range and high efficiency make it versatile for both low-power and high-power applications.
Package
The TPS54334DDAR is a buck converter from Texas Instruments and comes in an 8-pin SO PowerPAD package, designated as DDA. This package is designed for efficient thermal performance and compact PCB layout.
