Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| 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) | 1V |
| Voltage-Output(Max) | 26V |
| Current-Output | 3A |
| Frequency-Switching | 350kHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | SOT-23-6 Thin, TSOT-23-6 |
Обзор
Description
The TPS54308DDCR is a highly efficient, synchronous buck converter from Texas Instruments, designed for applications requiring a step-down power supply. It integrates a 3.5 A, 28 V power MOSFET and features a wide input voltage range from 4.5 V to 28 V, making it suitable for various power management needs in consumer electronics, industrial applications, and telecommunications. The device supports a fixed 570 kHz switching frequency, which helps optimize the overall efficiency and size of the external components.
Key features of the TPS54308DDCR include high efficiency across load conditions, fast transient response, and advanced protection mechanisms like over-current protection, thermal shutdown, and undervoltage lockout. Its small 8-pin SOIC (Small Outline Integrated Circuit) package makes it suitable for space-constrained applications. The converter's design also emphasizes low electromagnetic interference (EMI), enhancing the reliability and performance of systems in which it is implemented. Overall, the TPS54308DDCR offers a robust solution for powering a variety of digital circuits and systems.
Key features of the TPS54308DDCR include high efficiency across load conditions, fast transient response, and advanced protection mechanisms like over-current protection, thermal shutdown, and undervoltage lockout. Its small 8-pin SOIC (Small Outline Integrated Circuit) package makes it suitable for space-constrained applications. The converter's design also emphasizes low electromagnetic interference (EMI), enhancing the reliability and performance of systems in which it is implemented. Overall, the TPS54308DDCR offers a robust solution for powering a variety of digital circuits and systems.
Equivalent
The TPS54308DDCR is a synchronous buck converter from Texas Instruments. Equivalent products would include those with similar specifications from other manufacturers, such as:
1. LMR33630 from Texas Instruments
2. MP2316 from Monolithic Power Systems
3. LMR36015 from Texas Instruments
4. MAX17502 from Maxim Integrated
5. LT8609 from Analog Devices
When considering equivalents, ensure they match the key parameters like input voltage range, output current, switching frequency, and package type.
1. LMR33630 from Texas Instruments
2. MP2316 from Monolithic Power Systems
3. LMR36015 from Texas Instruments
4. MAX17502 from Maxim Integrated
5. LT8609 from Analog Devices
When considering equivalents, ensure they match the key parameters like input voltage range, output current, switching frequency, and package type.
Features
The TPS54308DDCR is a high-efficiency, synchronous buck converter designed for a variety of applications. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 4.5 V to 28 V, making it versatile for different power sources.
2. Output Current: Delivers up to 3 A of continuous output current, suitable for powering high-current loads.
3. Efficiency: High efficiency is achieved across a wide load range, thanks to its synchronous rectification and advanced control circuitry.
4. Switching Frequency: It operates at a fixed switching frequency of 700 kHz, enabling a balance between efficiency and component size.
5. Adjustable Output Voltage: The output voltage is adjustable via an external resistor divider, providing flexibility for various design requirements.
6. Protection Features: Includes overcurrent protection, thermal shutdown, and undervoltage lockout to ensure safe operation.
7. Package: Available in a compact 8-pin SOIC package (DDC), which is beneficial for space-constrained applications.
These features make the TPS54308DDCR suitable for use in consumer electronics, industrial power systems, and automotive applications.
1. Input Voltage Range: It supports a wide input voltage range from 4.5 V to 28 V, making it versatile for different power sources.
2. Output Current: Delivers up to 3 A of continuous output current, suitable for powering high-current loads.
3. Efficiency: High efficiency is achieved across a wide load range, thanks to its synchronous rectification and advanced control circuitry.
4. Switching Frequency: It operates at a fixed switching frequency of 700 kHz, enabling a balance between efficiency and component size.
5. Adjustable Output Voltage: The output voltage is adjustable via an external resistor divider, providing flexibility for various design requirements.
6. Protection Features: Includes overcurrent protection, thermal shutdown, and undervoltage lockout to ensure safe operation.
7. Package: Available in a compact 8-pin SOIC package (DDC), which is beneficial for space-constrained applications.
These features make the TPS54308DDCR suitable for use in consumer electronics, industrial power systems, and automotive applications.
Pinout
The TPS54308DDCR is a step-down (buck) DC-DC converter manufactured by Texas Instruments. It comes in an 8-pin package. Here is a brief overview of the pin functions:
1. Pin 1 (BOOT): Bootstrap capacitor connection for high-side gate driver.
2. Pin 2 (VIN): Input voltage supply pin for the power stage.
3. Pin 3 (SW): Switch node output, connected to the inductor.
4. Pin 4 (GND): Ground reference for the device.
5. Pin 5 (FB): Feedback pin to set the output voltage via a resistor divider.
6. Pin 6 (EN): Enable pin to turn the device on or off.
7. Pin 7 (SS/TR): Soft-start and tracking pin to control the startup time.
8. Pin 8 (VREG5): Internal 5V regulator output used to supply the internal control circuits.
These pins are integral for the device’s operation, providing input power, output regulation, and control functionalities.
1. Pin 1 (BOOT): Bootstrap capacitor connection for high-side gate driver.
2. Pin 2 (VIN): Input voltage supply pin for the power stage.
3. Pin 3 (SW): Switch node output, connected to the inductor.
4. Pin 4 (GND): Ground reference for the device.
5. Pin 5 (FB): Feedback pin to set the output voltage via a resistor divider.
6. Pin 6 (EN): Enable pin to turn the device on or off.
7. Pin 7 (SS/TR): Soft-start and tracking pin to control the startup time.
8. Pin 8 (VREG5): Internal 5V regulator output used to supply the internal control circuits.
These pins are integral for the device’s operation, providing input power, output regulation, and control functionalities.
Manufacturer
The TPS54308DDCR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronics across the globe. The company is a leader in the semiconductor industry, known for its development and innovation in analog and embedded processing products. TI provides components that are essential for modern electronic devices, spanning various sectors such as automotive, industrial, personal electronics, communications equipment, and enterprise systems.
Application
The TPS54308DDCR is a synchronous buck converter designed for various applications requiring efficient step-down voltage conversion. Key application areas include:
1. Consumer Electronics: Powering devices like TVs, set-top boxes, and gaming consoles.
2. Industrial Equipment: Used in systems that require reliable power management under varying loads.
3. Computer and Networking: Ideal for powering processors, memory, and peripheral components in computers and network devices.
4. Automotive Electronics: Suitable for infotainment systems, advanced driver assistance systems (ADAS), and other in-vehicle electronics.
5. Telecommunications: Provides efficient power conversion in telecom infrastructure equipment.
Its features like high efficiency, compact size, and reliable performance make it versatile for these applications.
1. Consumer Electronics: Powering devices like TVs, set-top boxes, and gaming consoles.
2. Industrial Equipment: Used in systems that require reliable power management under varying loads.
3. Computer and Networking: Ideal for powering processors, memory, and peripheral components in computers and network devices.
4. Automotive Electronics: Suitable for infotainment systems, advanced driver assistance systems (ADAS), and other in-vehicle electronics.
5. Telecommunications: Provides efficient power conversion in telecom infrastructure equipment.
Its features like high efficiency, compact size, and reliable performance make it versatile for these applications.
Package
The TPS54308DDCR is a DC-DC buck converter from Texas Instruments. It comes in an 8-pin, small outline transistor (SOT-23) package. This package type is compact and suitable for space-constrained applications, offering efficient power regulation in a small form factor.
