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TPS54340DDA
+BOMIC REG BUCK ADJ 3.5A 8SOPWR
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ManufacturerTexas Instruments
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Mfr. Part #TPS54340DDA
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Package HSOIC (DDA)-8
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In Stock7420
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Specifications
| Attribute | Value |
| Package | Bulk,Tube |
| Series | Eco-Mode™ |
| ProductStatus | Not For New Designs |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 42V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 41.1V |
| Current-Output | 3.5A |
| Frequency-Switching | 100kHz ~ 2.5MHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
Overview
Description
The TPS54340DDA is a DC-DC buck converter from Texas Instruments, designed to step down voltage efficiently in various electronic devices. It is part of the TPS54340 family, offering solutions for applications requiring a high-performance switching regulator. The device operates with an input voltage range of 4.5V to 42V, making it suitable for industrial and automotive environments.
Key features include a 3.5A output current, high efficiency, and a switching frequency that can be adjusted up to 2.5 MHz. Integrated features like a high-side MOSFET and a current mode control ensure robust performance and simplified design. Additionally, the TPS54340DDA includes protection mechanisms such as thermal shutdown, current limiting, and undervoltage lockout.
The converter's small footprint and versatile design make it suitable for space-constrained applications. Its wide range of input voltages and high current capability make it ideal for powering microcontrollers, FPGA-based systems, and other digital loads, providing reliable power conversion in compact, efficient packages.
Key features include a 3.5A output current, high efficiency, and a switching frequency that can be adjusted up to 2.5 MHz. Integrated features like a high-side MOSFET and a current mode control ensure robust performance and simplified design. Additionally, the TPS54340DDA includes protection mechanisms such as thermal shutdown, current limiting, and undervoltage lockout.
The converter's small footprint and versatile design make it suitable for space-constrained applications. Its wide range of input voltages and high current capability make it ideal for powering microcontrollers, FPGA-based systems, and other digital loads, providing reliable power conversion in compact, efficient packages.
Equivalent
Equivalent products to the TPS54340DDA, a DC-DC buck converter from Texas Instruments, include the LM2676 from Texas Instruments, the LT8609S from Analog Devices, and the MP1584 from Monolithic Power Systems. These chips offer similar functionalities, focusing on efficiency, adjustable output voltage, and a range of input voltages. However, their suitability depends on specific design requirements such as output current, switching frequency, and package type. Always consult datasheets for detailed comparisons.
Features
The TPS54340DDA is a step-down (buck) regulator from Texas Instruments designed for high-efficiency DC-DC conversion. It features a 7.5 V to 42 V input voltage range, making it suitable for various applications, including industrial and automotive systems. The device supports a maximum output current of 3.5 A.
Key features include a high-efficiency integrated MOSFET, which minimizes heat dissipation, and an adjustable switching frequency ranging from 100 kHz to 2.5 MHz. It offers a low-dropout mode for enhanced efficiency at light loads and supports external synchronization to a system clock for better control.
Additional features are a power-good output, which indicates the output voltage status, and adjustable soft start to control inrush current during startup. The device also includes overcurrent protection, thermal shutdown, and undervoltage lockout for robust performance. The TPS54340DDA is housed in an 8-pin SO PowerPAD package, which aids in thermal management. Its versatility and protection features make it well-suited for powering a wide range of loads in various applications.
Key features include a high-efficiency integrated MOSFET, which minimizes heat dissipation, and an adjustable switching frequency ranging from 100 kHz to 2.5 MHz. It offers a low-dropout mode for enhanced efficiency at light loads and supports external synchronization to a system clock for better control.
Additional features are a power-good output, which indicates the output voltage status, and adjustable soft start to control inrush current during startup. The device also includes overcurrent protection, thermal shutdown, and undervoltage lockout for robust performance. The TPS54340DDA is housed in an 8-pin SO PowerPAD package, which aids in thermal management. Its versatility and protection features make it well-suited for powering a wide range of loads in various applications.
Pinout
The TPS54340DDA is a 3.5 A, 42 V step-down (buck) converter from Texas Instruments. It is designed for various applications requiring a robust power supply. The "DDA" suffix refers to its specific package type, which is an 8-pin SO PowerPAD package.
The pin functions for the TPS54340DDA are as follows:
1. BOOT: Bootstrap capacitor connection, supplies the drive voltage for the high-side FET.
2. VIN: Input supply voltage.
3. EN: Enable pin, used to turn the regulator on or off.
4. SS/TR: Soft-start or tracking pin, used to control the output voltage ramp rate.
5. COMP: Compensation pin, used for external compensation network.
6. GND: Ground.
7. SW: Switch node, the output from the internal switching FET.
8. RT/CLK: Resistor timing or clock input, used to set the switching frequency.
These pins collectively support the device's primary function of efficiently converting a higher input voltage to a lower output voltage with high current capability.
The pin functions for the TPS54340DDA are as follows:
1. BOOT: Bootstrap capacitor connection, supplies the drive voltage for the high-side FET.
2. VIN: Input supply voltage.
3. EN: Enable pin, used to turn the regulator on or off.
4. SS/TR: Soft-start or tracking pin, used to control the output voltage ramp rate.
5. COMP: Compensation pin, used for external compensation network.
6. GND: Ground.
7. SW: Switch node, the output from the internal switching FET.
8. RT/CLK: Resistor timing or clock input, used to set the switching frequency.
These pins collectively support the device's primary function of efficiently converting a higher input voltage to a lower output voltage with high current capability.
Manufacturer
The TPS54340DDA is manufactured by Texas Instruments (TI). Texas Instruments is a technology company that designs and manufactures semiconductors and various integrated circuits, which are used in a wide range of electronic applications. TI is known for producing a variety of products including analog and embedded processing devices, and is a significant player in the electronics industry, providing components for industrial, automotive, personal electronics, communications equipment, and enterprise systems.
Application
The TPS54340DDA is a step-down DC-DC converter from Texas Instruments, designed for a wide range of applications requiring efficient power management. Its typical application areas include:
1. Industrial and automotive power supplies, where robust performance and reliability are crucial.
2. Distributed power systems, providing point-of-load regulation.
3. Battery-powered devices, benefiting from its high efficiency and low power consumption.
4. Consumer electronics, such as set-top boxes and digital TVs, demanding compact and efficient power solutions.
5. Telecommunications and networking equipment, requiring consistent voltage regulation under varying loads.
6. General-purpose DC-DC conversion in various embedded systems and development platforms.
Its versatility, efficiency, and wide input voltage range make it suitable for these diverse applications.
1. Industrial and automotive power supplies, where robust performance and reliability are crucial.
2. Distributed power systems, providing point-of-load regulation.
3. Battery-powered devices, benefiting from its high efficiency and low power consumption.
4. Consumer electronics, such as set-top boxes and digital TVs, demanding compact and efficient power solutions.
5. Telecommunications and networking equipment, requiring consistent voltage regulation under varying loads.
6. General-purpose DC-DC conversion in various embedded systems and development platforms.
Its versatility, efficiency, and wide input voltage range make it suitable for these diverse applications.
Package
The TPS54340DDA is a DC-DC buck converter from Texas Instruments. It comes in a 8-pin SO PowerPAD package (DDA), which is designed for enhanced thermal performance.
