TPS54231DR

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TPS54231DR

IC REG BUCK ADJUSTABLE 2A 8SOIC

  • Nhà sản xuất
  • Ông. Phần #TPS54231DR
  • Gói SOIC (D)-8
  • Bảng dữ liệu
  • Có sẵn2067

100% gốc & amp; Mới

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Bảo hành 365 ngày

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Thông số kỹ thuật

Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series Eco-Mode™
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 3.5V
Voltage-Input(Max) 28V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 25V
Current-Output 2A
Frequency-Switching 570kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Tổng quan

Description

The TPS54231DR is a step-down (buck) DC-DC converter from Texas Instruments, designed for efficient voltage regulation in various electronic applications. Operating with an input voltage range of 3.5V to 28V, it delivers an output current of up to 2A, making it suitable for powering microcontrollers, sensors, and other low-power devices. The device integrates a high-side MOSFET, reducing the need for external components and simplifying the design process.
Key features include a fixed switching frequency of 570 kHz, which helps in minimizing output ripple and allows the use of smaller inductors and capacitors, optimizing space and cost. Its high efficiency, typically above 90%, reduces heat generation and improves battery life in portable applications. The TPS54231DR also supports a wide range of output voltages, adjustable via an external resistor divider.
Additional features include an internal compensation network, cycle-by-cycle current limiting, thermal shutdown protection, and a soft-start function to prevent inrush currents during startup. Its small SOIC-8 package allows for efficient space utilization on printed circuit boards, making it a versatile choice for compact electronic systems.

Features

The TPS54231DR is a step-down DC-DC converter from Texas Instruments, designed for applications requiring efficient power management. Key features include:
1. Wide Input Voltage Range: The device operates from 3.5V to 28V, accommodating a variety of input sources, including batteries and power adapters.
2. Output Current: It supports up to 2A continuous output, suitable for powering microcontrollers, analog circuits, and other low-power devices.
3. Efficiency: High efficiency of up to 95% is achieved through a combination of advanced switching techniques and integrated MOSFETs.
4. Adjustable Output Voltage: The output voltage can be set using an external resistor divider, providing flexibility for different application requirements.
5. Switching Frequency: Operates at a fixed 570 kHz frequency, balancing size and efficiency.
6. Thermal and Short-Circuit Protection: Includes overcurrent protection, thermal shutdown, and undervoltage lockout for enhanced reliability.
7. Eco-Mode: Features a pulse-skipping mode for improved efficiency at light loads.
8. Compact Package: Available in an 8-pin SOIC package, facilitating easy integration into various circuit designs.
These features make the TPS54231DR suitable for a wide range of applications, including consumer electronics, telecommunications, and industrial products.

Package

The TPS54231DR is a step-down DC-DC converter from Texas Instruments, and it is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. The "DR" suffix indicates the specific package code for a leaded plastic SOIC with a tape and reel packaging option.

Pinout

The TPS54231DR is a step-down DC-DC converter, and it typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of the pin functions:
1. BOOT: Connects to an external capacitor and diode to supply the high-side FET driver.
2. VIN: Input supply voltage pin; accepts an input voltage range.
3. EN: Enable pin; can be used to turn the device on or off.
4. SS: Soft-start pin; connects an external capacitor to control the soft-start time.
5. COMP: Compensation pin; used to connect external components for loop compensation.
6. GND: Ground pin; the reference for the IC's operation.
7. SW: Switch pin; connects to the inductor and carries the switching node.
8. VSENSE: Feedback voltage pin; used to set the output voltage through a resistor divider network.
These pin functions enable the TPS54231DR to efficiently convert a higher input voltage to a lower output voltage with programmable features such as soft-start and enable/disable.

Manufacturer

The TPS54231DR is manufactured by Texas Instruments, an American technology company. Texas Instruments is known for designing and manufacturing semiconductors and various integrated circuits, which are used in a wide range of electronic devices. The company is a prominent player in the electronics industry, focusing on analog technology, embedded processing, and digital light processing. With a strong emphasis on innovation and quality, Texas Instruments serves various markets, including industrial, automotive, personal electronics, communications equipment, and enterprise systems.

Application

The TPS54231DR is a step-down DC-DC converter used in various applications, such as power supply solutions for consumer electronics, industrial equipment, telecommunications, and automotive systems. It is well-suited for applications requiring efficient voltage regulation, such as powering microcontrollers, DSPs, FPGAs, and other digital ICs. The device's compact size and high efficiency make it ideal for portable devices and space-constrained applications.

Equivalent

The TPS54231DR is a step-down (buck) converter from Texas Instruments. Equivalent products include the LM2596 from Texas Instruments, the MP1584 from MPS (Monolithic Power Systems), the LM2576 from Texas Instruments, and the MC34063 from ON Semiconductor. These alternatives have similar functionalities but may differ in parameters like output current, efficiency, and input voltage range, so it's important to verify compatibility with your specific requirements.

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