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TPS54339EDDAR
IC REG BUCK ADJUSTABLE 3A 8SOPWR
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規格
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | SWIFT™, D-CAP2™, Eco-Mode™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 23V |
| Voltage-Output(Min/Fixed) | 0.76V |
| Voltage-Output(Max) | 7V |
| Current-Output | 3A |
| Frequency-Switching | 600kHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
概述
Description
The TPS54339EDDAR is a high-efficiency, synchronous step-down (buck) converter designed by Texas Instruments. It integrates a 3.5 A, 28 V power switch and is ideal for a variety of DC-DC power conversion applications. The device operates with a wide input voltage range from 4.5 V to 28 V, making it suitable for systems powered by 5 V, 12 V, and 24 V rails, as well as battery-powered applications. The TPS54339EDDAR features a fixed frequency of 700 kHz, which helps in reducing the size of external components and enables a more compact design.
Key features include internal compensation to simplify design, an adjustable output voltage down to 0.8 V, and high efficiency over a wide load range. The device also offers protection features such as current limiting, thermal shutdown, and undervoltage lockout to enhance reliability. Its compact 8-pin SO PowerPAD package allows for efficient heat dissipation, making it suitable for space-constrained designs. The TPS54339EDDAR is typically used in applications like industrial power systems, telecom infrastructure, and consumer electronics.
Key features include internal compensation to simplify design, an adjustable output voltage down to 0.8 V, and high efficiency over a wide load range. The device also offers protection features such as current limiting, thermal shutdown, and undervoltage lockout to enhance reliability. Its compact 8-pin SO PowerPAD package allows for efficient heat dissipation, making it suitable for space-constrained designs. The TPS54339EDDAR is typically used in applications like industrial power systems, telecom infrastructure, and consumer electronics.
Features
The TPS54339EDDAR is a 3-A synchronous step-down (buck) converter from Texas Instruments. It is designed for high-efficiency power conversion, featuring a wide input voltage range from 3.5 V to 28 V, making it suitable for various applications. The device operates at a fixed switching frequency of 700 kHz, allowing for compact solution size and reduced output filter requirements.
Key features include:
- High Efficiency: The synchronous rectification enhances efficiency, especially at light loads.
- Adjustable Output Voltage: It supports an adjustable output voltage ranging from 0.8 V to 20 V.
- Low Dropout Operation: Provides a low dropout to extend battery life in portable applications.
- Soft Start: A built-in soft-start feature reduces inrush current during startup.
- Protection Features: Includes cycle-by-cycle current limit, thermal shutdown, and frequency fold-back to protect against over-current and over-temperature conditions.
- Compact Size: Offered in a thermally enhanced 8-pin SO PowerPAD™ package, suitable for space-constrained designs.
These features make the TPS54339EDDAR ideal for point-of-load conversions in distributed power systems, consumer electronics, and industrial applications.
Key features include:
- High Efficiency: The synchronous rectification enhances efficiency, especially at light loads.
- Adjustable Output Voltage: It supports an adjustable output voltage ranging from 0.8 V to 20 V.
- Low Dropout Operation: Provides a low dropout to extend battery life in portable applications.
- Soft Start: A built-in soft-start feature reduces inrush current during startup.
- Protection Features: Includes cycle-by-cycle current limit, thermal shutdown, and frequency fold-back to protect against over-current and over-temperature conditions.
- Compact Size: Offered in a thermally enhanced 8-pin SO PowerPAD™ package, suitable for space-constrained designs.
These features make the TPS54339EDDAR ideal for point-of-load conversions in distributed power systems, consumer electronics, and industrial applications.
Package
The TPS54339EDDAR is a DC-DC buck converter from Texas Instruments. It comes in an 8-pin SO PowerPAD package, which is designed for improved thermal performance.
Pinout
The TPS54339EDDAR is a synchronous buck converter from Texas Instruments. It comes in an 8-pin package. The main functions of these pins are as follows:
1. VIN: Input voltage supply pin where the input power is applied.
2. SW: Switch node pin, where the inductor is connected and switching action occurs.
3. GND: Ground pin, serving as the return path for the input and output power.
4. FB: Feedback pin, connected to the output to regulate the output voltage.
5. EN: Enable pin, used to enable or disable the device.
6. COMP: Compensation pin, used to connect a resistor and capacitor network to stabilize the control loop.
7. RT/CLK: Resistor timing or clock pin, used to set the switching frequency or synchronize to an external clock.
8. BOOT: Bootstrap pin, used to provide a drive voltage higher than the input voltage for the high-side FET.
This configuration is ideal for converting a higher input voltage to a regulated lower output voltage with high efficiency.
1. VIN: Input voltage supply pin where the input power is applied.
2. SW: Switch node pin, where the inductor is connected and switching action occurs.
3. GND: Ground pin, serving as the return path for the input and output power.
4. FB: Feedback pin, connected to the output to regulate the output voltage.
5. EN: Enable pin, used to enable or disable the device.
6. COMP: Compensation pin, used to connect a resistor and capacitor network to stabilize the control loop.
7. RT/CLK: Resistor timing or clock pin, used to set the switching frequency or synchronize to an external clock.
8. BOOT: Bootstrap pin, used to provide a drive voltage higher than the input voltage for the high-side FET.
This configuration is ideal for converting a higher input voltage to a regulated lower output voltage with high efficiency.
Manufacturer
The TPS54339EDDAR is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company headquartered in Dallas, Texas. It specializes in designing and manufacturing semiconductors and various integrated circuits, which are used in a wide range of electronic devices. The company is known for its innovations in analog and embedded processing, providing products and solutions that enable advancements in automotive, industrial, personal electronics, communications, and enterprise systems. TI is one of the largest semiconductor companies in the world, with a focus on research and development to drive technological innovation.
Application
The TPS54339EDDAR is a step-down (buck) converter commonly used in applications requiring efficient power management. Its application areas include powering microcontrollers, FPGAs, and ASICs in computing and communication systems, facilitating power supply for consumer electronics, industrial equipment, and automotive systems, and providing voltage regulation in battery-powered devices. Its compact size and high efficiency make it suitable for use in space-constrained applications.
Equivalent
The TPS54339EDDAR is a DC-DC buck converter from Texas Instruments. Equivalent products with similar specifications may include:
1. LMR33630 from Texas Instruments
2. MP1584 from MPS (Monolithic Power Systems)
3. LM2596 from STMicroelectronics
4. MAX17502 from Maxim Integrated
Ensure to compare the specifications like input voltage range, output current, switching frequency, and package type to find the best equivalent for your application.
1. LMR33630 from Texas Instruments
2. MP1584 from MPS (Monolithic Power Systems)
3. LM2596 from STMicroelectronics
4. MAX17502 from Maxim Integrated
Ensure to compare the specifications like input voltage range, output current, switching frequency, and package type to find the best equivalent for your application.
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