Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 28V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 24V |
| Current-Output | 3A |
| Frequency-Switching | 50kHz ~ 1.5MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
Tổng quan
Description
The TPS54335ADDAR is a highly efficient, synchronous buck converter manufactured by Texas Instruments. It is part of the TPS54335A series, designed to deliver a 3A output current with enhanced performance and simplified design for various applications. Operating from a wide input voltage range of 4.5V to 28V, it is suitable for distributed power systems, battery-operated equipment, and other applications requiring high-efficiency step-down voltage conversion.
Key features include a fixed 570kHz switching frequency, which helps reduce the size of external components, and an adjustable output voltage down to as low as 0.8V. The device integrates both high-side and low-side MOSFETs, enabling high efficiency and reducing the need for external components. It also includes protection features like cycle-by-cycle current limiting, thermal shutdown, and undervoltage lockout to ensure reliable operation under various conditions.
The TPS54335ADDAR comes in an 8-pin HSOP (PowerPAD™) package, facilitating efficient thermal management. This combination of features makes it an ideal choice for compact and efficient power solutions.
Key features include a fixed 570kHz switching frequency, which helps reduce the size of external components, and an adjustable output voltage down to as low as 0.8V. The device integrates both high-side and low-side MOSFETs, enabling high efficiency and reducing the need for external components. It also includes protection features like cycle-by-cycle current limiting, thermal shutdown, and undervoltage lockout to ensure reliable operation under various conditions.
The TPS54335ADDAR comes in an 8-pin HSOP (PowerPAD™) package, facilitating efficient thermal management. This combination of features makes it an ideal choice for compact and efficient power solutions.
Equivalent
Equivalent products for the TPS54335ADDAR, a DC-DC buck converter from Texas Instruments, include:
1. LM43603 - A 3A synchronous step-down regulator from Texas Instruments.
2. MP1584 - A 3A step-down converter from Monolithic Power Systems.
3. LM2596 - A 3A adjustable voltage regulator from Texas Instruments.
4. LT8610 - A 2.5A, 42V input synchronous step-down regulator from Analog Devices.
These alternatives vary in features and specifications, so ensure compatibility with your specific application requirements.
1. LM43603 - A 3A synchronous step-down regulator from Texas Instruments.
2. MP1584 - A 3A step-down converter from Monolithic Power Systems.
3. LM2596 - A 3A adjustable voltage regulator from Texas Instruments.
4. LT8610 - A 2.5A, 42V input synchronous step-down regulator from Analog Devices.
These alternatives vary in features and specifications, so ensure compatibility with your specific application requirements.
Features
The TPS54335ADDAR is a step-down DC-DC converter from Texas Instruments, designed for high-efficiency power supply applications. Key features include:
1. Input Voltage Range: Operates with an input voltage between 4.5V and 28V, suitable for various applications.
2. Output Current: Capable of delivering up to 3A of continuous output current.
3. Switching Frequency: Offers a fixed frequency of 700 kHz to optimize efficiency and size.
4. Efficiency: High efficiency, exceeding 90% under typical conditions, reducing heat and power loss.
5. Soft-Start Function: Includes an adjustable soft-start feature to limit inrush current during startup.
6. Current Mode Control: Provides good transient response and simple loop compensation.
7. Protection Features: Incorporates overcurrent protection, thermal shutdown, and undervoltage lockout for enhanced reliability.
8. Package: Available in a small, thermally enhanced SOIC-8 package (DDA), facilitating compact designs.
9. Output Voltage: Adjustable output voltage, allowing flexibility for different applications.
These features make the TPS54335ADDAR suitable for applications in distributed power systems, digital TV power supplies, and other consumer electronics.
1. Input Voltage Range: Operates with an input voltage between 4.5V and 28V, suitable for various applications.
2. Output Current: Capable of delivering up to 3A of continuous output current.
3. Switching Frequency: Offers a fixed frequency of 700 kHz to optimize efficiency and size.
4. Efficiency: High efficiency, exceeding 90% under typical conditions, reducing heat and power loss.
5. Soft-Start Function: Includes an adjustable soft-start feature to limit inrush current during startup.
6. Current Mode Control: Provides good transient response and simple loop compensation.
7. Protection Features: Incorporates overcurrent protection, thermal shutdown, and undervoltage lockout for enhanced reliability.
8. Package: Available in a small, thermally enhanced SOIC-8 package (DDA), facilitating compact designs.
9. Output Voltage: Adjustable output voltage, allowing flexibility for different applications.
These features make the TPS54335ADDAR suitable for applications in distributed power systems, digital TV power supplies, and other consumer electronics.
Pinout
The TPS54335ADDAR is a DC-DC step-down converter from Texas Instruments, typically used in applications requiring efficient power management. It is part of the TPS54335 series and comes in an 8-pin SO PowerPAD package. Here is a brief overview of its pin functions:
1. BOOT: Provides the drive voltage for the high-side MOSFET.
2. VIN: Input voltage pin for the converter, where the input supply is connected.
3. SW: Switch node pin, the output of the high-side MOSFET.
4. GND: Ground pin for the device.
5. FB: Feedback pin for setting the output voltage using a resistor divider.
6. COMP: Compensation pin for stability, allows for external compensation.
7. EN: Enable pin for the device, used to start or stop the device operation.
8. RT/CLK: Allows setting of the switching frequency and synchronization to an external clock.
This converter is designed for flexibility and efficiency, making it suitable for a range of applications in power management systems.
1. BOOT: Provides the drive voltage for the high-side MOSFET.
2. VIN: Input voltage pin for the converter, where the input supply is connected.
3. SW: Switch node pin, the output of the high-side MOSFET.
4. GND: Ground pin for the device.
5. FB: Feedback pin for setting the output voltage using a resistor divider.
6. COMP: Compensation pin for stability, allows for external compensation.
7. EN: Enable pin for the device, used to start or stop the device operation.
8. RT/CLK: Allows setting of the switching frequency and synchronization to an external clock.
This converter is designed for flexibility and efficiency, making it suitable for a range of applications in power management systems.
Manufacturer
The manufacturer of the TPS54335ADDAR is Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. These components are used in a wide range of electronic systems and devices. TI is known for its innovation and leadership in the semiconductor industry, providing solutions for industries such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. Founded in 1930 and headquartered in Dallas, Texas, the company has grown to become one of the largest semiconductor companies in the world.
Application
The TPS54335ADDAR is a DC-DC buck converter suitable for a range of applications requiring efficient voltage regulation. It is commonly used in telecommunications, networking, industrial power systems, and consumer electronics. The device is ideal for applications that need a compact power supply with high current output, such as point-of-load conversions, distributed power systems, and as a power source for microcontrollers, FPGAs, and ASICs. Its features, including high efficiency, wide input voltage range, and adjustable output voltage, make it versatile for applications in smart meters, automotive electronics, and portable devices.
Package
The TPS54335ADDAR is a step-down converter from Texas Instruments and comes in an SO PowerPAD package. Specifically, it is an 8-pin SOIC (Small Outline Integrated Circuit) with a PowerPAD for enhanced thermal performance, denoted by the "DDA" package code.
