TPS54239DDAR

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TPS54239DDAR

IC REG BUCK ADJUSTABLE 2A 8SOPWR

  • Производитель
  • Мфр. Часть #TPS54239DDAR
  • Пакет HSOIC (DDA)-8
  • Лист данных
  • В наличии4557

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Спецификации

Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series SWIFT™, D-CAP2™
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 4.5V
Voltage-Input(Max) 23V
Voltage-Output(Min/Fixed) 0.76V
Voltage-Output(Max) 7V
Current-Output 2A
Frequency-Switching 600kHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-PowerSOIC (0.154, 3.90mm Width)

Обзор

Description

The TPS54239DDAR is a high-efficiency synchronous buck converter from Texas Instruments. It is designed to step down voltage from a higher level to a lower level, suitable for powering a variety of electronic devices and systems. This converter features a wide input voltage range from 4.5V to 28V and can deliver up to 2A of continuous current, making it versatile for various applications.
Key features include a fixed-frequency operation at 700 kHz, which ensures a compact design with smaller external components. It also has an adjustable output voltage via an external resistor divider, allowing for flexibility in different applications. The TPS54239DDAR integrates protection features such as current limit, thermal shutdown, and undervoltage lockout to enhance reliability and safety.
Its small size and high efficiency make it suitable for space-constrained applications like consumer electronics, industrial equipment, and communication devices. Additionally, the converter's ability to maintain high efficiency across a wide load range contributes to lower power consumption and extended battery life in portable applications.

Features

The TPS54239DDAR is a synchronous step-down DC-DC converter designed by Texas Instruments. Key features include:
1. Input Voltage Range: It supports a wide input voltage range of 3.5 V to 28 V, making it versatile for various applications.

2. Output Current: The converter can deliver up to 2 A of continuous output current.
3. Efficiency: It boasts high efficiency across the load range, thanks to its integrated low-resistance MOSFETs.
4. Switching Frequency: It offers a fixed switching frequency of 700 kHz, optimizing efficiency and size.
5. Mode: Includes an Eco-mode for light-load efficiency, reducing operating current to minimize power loss.
6. Soft Start: Programmable soft-start feature allows for control over inrush current upon powering up.
7. Protection Features: Equipped with overcurrent protection, thermal shutdown, and undervoltage lockout to ensure reliability and safety.
8. Package: Available in a small, thermally enhanced 8-pin SO PowerPAD™ package, aiding in heat dissipation.
These features make the TPS54239DDAR suitable for applications requiring efficient power conversion, such as in consumer electronics, industrial systems, or communications equipment.

Package

The TPS54239DDAR is a DC-DC buck converter from Texas Instruments, typically housed in an 8-pin SO PowerPAD (Small Outline) package, designated as DDA. This package includes a thermal pad to enhance heat dissipation, making it suitable for compact designs with efficient thermal management.

Pinout

The TPS54239DDAR is a synchronous step-down converter integrated circuit from Texas Instruments. It typically comes in an 8-pin package. Here is a brief overview of its pin functions:
1. VIN: Input voltage supply pin. Connects to the input power source.
2. EN: Enable pin. Used to enable or disable the device.
3. SS/TR: Soft-start/Tracking pin. Used for soft-start timing and voltage tracking.
4. GND: Ground pin. Provides a return path for the input and output currents.
5. SW: Switch node pin. Connects to the inductor and is part of the switching power stage.
6. BOOT: Bootstrap pin. Provides the supply for the high-side gate driver.
7. FB: Feedback pin. Used to set the output voltage through an external resistor divider.
8. COMP: Compensation pin. Connects to the compensation network to stabilize the control loop.
These pins work together to regulate the output voltage efficiently, making the TPS54239 suitable for various applications that require a compact, reliable power supply solution.

Manufacturer

The TPS54239DDAR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. TI is one of the largest semiconductor companies in the world and is well-known for its innovations in analog chips and embedded processors, playing a crucial role in the development of electronics across a wide range of industries.

Application

The TPS54239DDAR is a DC-DC buck converter designed for power management applications. It is widely used in telecommunications, industrial automation, computing and networking equipment, and consumer electronics. Its primary application areas include powering FPGAs, DSPs, microcontrollers, and other point-of-load devices requiring high efficiency and low noise. Additionally, it is suitable for use in battery-powered systems due to its low quiescent current and high efficiency over a wide load range.

Equivalent

The TPS54239DDAR is a DC-DC step-down (buck) converter designed by Texas Instruments. Equivalent products from other manufacturers may include:
1. LMR14030 by Texas Instruments
2. MP1584 by Monolithic Power Systems
3. LM2596 by Texas Instruments (though slightly different in features)
4. LT8608 by Analog Devices
5. AP63205 by Diodes Incorporated
These equivalents may vary slightly in specifications, so it's essential to compare their features and performance to ensure compatibility with your application.

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