TPS5450DDAR

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TPS5450DDAR

IC REG BUCK ADJUSTABLE 5A 8SOPWR

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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 5.5V
Voltage-Input(Max) 36V
Voltage-Output(Min/Fixed) 1.221V
Voltage-Output(Max) 31.32V
Current-Output 5A
Frequency-Switching 500kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 8-PowerSOIC (0.154, 3.90mm Width)

概述

Description

The TPS5450DDAR is a step-down (buck) DC-DC converter from Texas Instruments, designed for high-efficiency power supply applications. This integrated circuit can deliver up to 5A of continuous output current and operates with an input voltage range of 5.5V to 36V, making it versatile for various power supply systems.
Key features include a 500kHz fixed switching frequency, which aids in reducing the size of external components and ensuring a compact design. It has an adjustable output voltage, allowing for customization in various applications. The device also offers overcurrent protection, thermal shutdown, and an under-voltage lockout to ensure reliability and safety in operation.
The TPS5450DDAR is typically used in point-of-load applications, distributed power systems, and for powering microprocessors or DSPs, thanks to its high efficiency and compact design. It is housed in an SOIC-8 package that makes it suitable for space-constrained applications.
Overall, the TPS5450DDAR provides a robust solution for efficient power conversion needs in consumer electronics, industrial, and automotive applications.

Features

The TPS5450DDAR is a high-performance DC-DC buck converter from Texas Instruments, designed for efficient power management in various applications. Here are its key features:
1. Input Voltage Range: It supports a wide input voltage range from 5.5V to 36V, making it versatile for different applications.

2. Output Current: The TPS5450 can deliver up to 5A of continuous output current.
3. Adjustable Output Voltage: The device allows adjustable output voltage from 1.22V to 33V, providing flexibility for different design requirements.
4. High Efficiency: It features a power-efficient design, with efficiency reaching up to 95% depending on the configuration.
5. Switching Frequency: The device operates at a switching frequency of 500 kHz, optimizing size and performance.
6. Thermal and Overcurrent Protection: Includes features like thermal shutdown and cycle-by-cycle current limit protection to safeguard against overheating and overcurrent conditions.
7. Soft Start and Enable Pin: It includes a soft-start function to control inrush current, and an enable pin for easy power sequencing.
8. Packaging: Available in an 8-pin SO PowerPAD™ package, offering compactness and effective thermal performance.
These features make the TPS5450DDAR suitable for applications such as industrial equipment, consumer electronics, and telecommunication systems.

Package

The TPS5450DDAR is a step-down DC-DC converter from Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package, specifically the SO PowerPAD package. The PowerPAD helps in heat dissipation, making it suitable for applications requiring efficient thermal management.

Pinout

The TPS5450DDAR is a step-down (buck) converter integrated circuit from Texas Instruments, designed for high-efficiency power conversion. It is packaged in an 8-pin SOIC (Small Outline Integrated Circuit). Here's a brief overview of its pin functions:
1. BOOT - Bootstrap capacitor connection for the high-side MOSFET driver.
2. VIN - Input voltage supply pin, where the input power is supplied.
3. VSENSE - Feedback voltage pin for output voltage regulation.
4. EN (Enable) - Enables or disables the device; a high level turns the device on.
5. GND - Ground reference for the circuit.
6. COMP - Compensation pin used to stabilize the control loop.
7. VREG5 - Internal 5V regulator output, used for internal circuits and can be used for external loads.
8. PH (Phase) - Connects to the inductor and is a switch node that is used in the conversion process.
These pins work together to allow the TPS5450 to efficiently step down a higher input voltage to a lower output voltage, suitable for powering various electronic applications.

Manufacturer

The TPS5450DDAR is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is a global semiconductor company that designs and produces a range of analog and embedded processing chips. Their products are used in various applications, including industrial, automotive, personal electronics, communications equipment, and enterprise systems. Texas Instruments is known for its innovation in designing and manufacturing components that help solve engineering challenges across different industries.

Application

The TPS5450DDAR is a DC-DC buck converter used in various applications requiring efficient power management. It is commonly utilized in telecommunications, consumer electronics, industrial automation, and computing systems. Its ability to deliver up to 5A of output current makes it suitable for powering microcontrollers, FPGAs, DSPs, and other digital circuits. Additionally, it is used in automotive systems, battery-powered devices, and any application needing a compact, reliable step-down voltage conversion with high efficiency and thermal performance.

Equivalent

The TPS5450DDAR is a step-down (buck) converter by Texas Instruments. Equivalent or similar products might include:
1. LM2675 by Texas Instruments
2. LM2596 by Texas Instruments
3. LT1765 by Analog Devices
4. MP1584 by Monolithic Power Systems
5. L4971 by STMicroelectronics
Always check the datasheets to ensure compatibility with your specific requirements.

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