TPS54340DDA

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TPS54340DDA

IC REG BUCK ADJ 3.5A 8SOPWR

  • Nhà sản xuất
  • Ông. Phần #TPS54340DDA
  • Gói HSOIC (DDA)-8
  • Bảng dữ liệu
  • Có sẵn4565

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Bảo hành 365 ngày

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Thông số kỹ thuật

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)

Tổng quan

Description

The TPS54340DDA is a step-down (buck) DC-DC converter designed by Texas Instruments. It is part of the company's TPS54340 series, aimed at efficiently converting higher input voltages to lower output voltages. Key features include a 42 V maximum input voltage, a 3.5 A output current capability, and an adjustable output voltage ranging from 0.8 V to near the input voltage. It operates with high efficiency and supports a wide input voltage range, making it suitable for applications like industrial and automotive systems.
The converter employs current-mode control for fast transient response and stability across a range of loads and input voltages. It also includes a variety of protection features such as thermal shutdown, overcurrent protection, and undervoltage lockout to ensure reliable operation. The TPS54340DDA comes in an 8-pin SO PowerPAD package, which allows for efficient heat dissipation.
Overall, its robust design and versatile features make the TPS54340DDA an attractive option for designers looking to implement reliable power management in their systems.

Features

The TPS54340DDA is a step-down (buck) DC-DC converter from Texas Instruments. It is part of the SWIFT™ family known for high-efficiency and reliable power management solutions. Key features include:
1. Wide Input Voltage Range: It supports an input voltage range from 4.5 V to 42 V, making it suitable for a variety of applications including industrial and automotive.
2. Output Current: Capable of delivering up to 3.5 A of continuous output current, catering to moderate power requirements.
3. Adjustable Output Voltage: The output voltage is adjustable, with a range from 0.8 V to 40 V, providing flexibility to match specific application needs.
4. High Efficiency: Efficiency is optimized across the load range through low RDS(on) MOSFETs and pulse skipping mode for light loads.
5. Frequency Synchronization: It offers a programmable switching frequency from 100 kHz to 2.5 MHz and can be synchronized to an external clock, aiding in noise-sensitive applications.
6. Protection Features: Includes overload protection, thermal shutdown, and frequency fold-back for enhanced reliability.
7. Package: Available in a 10-pin thermally-enhanced DDA package, facilitating efficient thermal management.
These features make the TPS54340DDA suitable for use in a wide array of applications, such as consumer electronics, industrial equipment, and automotive systems.

Package

The TPS54340DDA is a DC-DC buck converter with an 8-pin SO PowerPAD package type.

Pinout

The TPS54340DDA is a step-down (buck) voltage regulator from Texas Instruments. It comes in an 8-pin SO PowerPAD package. Here are the pin functions:
1. BOOT: Provides a supply voltage for the high-side MOSFET gate driver.
2. VIN: Input voltage supply pin.
3. EN: Enable pin; when pulled high, it enables the device.
4. SS/TR: Soft start and tracking pin to control the output rise time.
5. COMP: Compensation pin; used to stabilize the control loop with an external RC network.
6. GND: Ground pin.
7. RT/CLK: Sets the switching frequency with an external resistor or synchronizes to an external clock.
8. PH (PowerPAD): The inductor connection for the switching node; also helps in heat dissipation.
This 3.5 A, 42 V, step-down converter is suitable for applications requiring a high efficiency and compact design.

Manufacturer

The TPS54340DDA is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits used in various applications and industries. TI is particularly well-known for its analog and embedded processing products. The company serves diverse markets, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is headquartered in Dallas, Texas, and is recognized as one of the leading companies in the semiconductor industry.

Application

The TPS54340DDA is a step-down DC-DC converter used in applications requiring efficient power management. Key areas include industrial power systems, telecom infrastructure, automotive electronics, consumer electronics, and LED lighting. Its features, such as high efficiency, wide input voltage range, and robust thermal performance, make it suitable for powering microcontrollers, FPGA, DSPs, and other processors. Additionally, it's used in battery-powered devices and distributed power systems, where stable and reliable voltage regulation is critical.

Equivalent

The TPS54340DDA is a 3.5A, 42V step-down (buck) converter from Texas Instruments. Equivalent products from other manufacturers might include:
1. LM2596 - by Texas Instruments, 3A, 40V.
2. MP1584 - by MPS (Monolithic Power Systems), 3A, 28V.
3. LMR33630 - by Texas Instruments, 3A, 36V.
4. LT8610 - by Analog Devices, 3.5A, 42V.
Ensure compatibility by comparing key specifications like input voltage range, current rating, and switching frequency.

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