TPS54331DDA

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TPS54331DDA

IC REG BUCK ADJUSTABLE 3A 8SOPWR

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Spezifikationen

Package Tube
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 3A
Frequency-Switching 570kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 8-PowerSOIC (0.154, 3.90mm Width)

Übersicht

Description

The TPS54331DDA is a step-down converter integrated circuit from Texas Instruments, part of the SWIFT™ DC/DC converter family. It is designed for high-efficiency voltage regulation, ideal for applications requiring compact size and robust performance. The device supports an input voltage range from 3.5V to 28V and delivers an output current up to 3A, making it suitable for power supply designs in various electronics, including consumer electronics, industrial systems, and telecommunications equipment.
The TPS54331DDA features a fixed frequency of 570 kHz, aiding in reduced output ripple and smaller external components. It implements current mode control for simplified compensation and fast transient response. The device includes an adjustable soft-start function, overcurrent protection, and thermal shutdown to enhance reliability and protect the circuit. Its thermal pad package facilitates excellent heat dissipation.
Overall, the TPS54331DDA offers a compact, efficient solution for designers needing a reliable step-down converter with comprehensive protection features and flexibility in design.

Features

The TPS54331DDA is a step-down (buck) converter from Texas Instruments designed for managing power efficiency in electronic systems. Here are its key features:
1. Input Voltage Range: It operates over a wide input voltage range from 3.5 V to 28 V, making it versatile for various applications.
2. Output Current: The converter supports up to 3 A continuous output current with efficiency up to 95%, optimizing power delivery.
3. Switching Frequency: It features a fixed switching frequency of 570 kHz, which helps in minimizing output ripple and component size.
4. Thermal Performance: The device includes thermal shutdown protection to safeguard against overheating.
5. Soft Start: It has an internal soft-start feature to prevent inrush current during startup.
6. MOSFET: The TPS54331DDA integrates a high-side MOSFET with low on-resistance, improving efficiency and reducing component count.
7. Protection Features: It incorporates features like over-current protection and under-voltage lockout to ensure reliable operation.
8. Package: It is available in an 8-pin SOIC package, which aids in compact circuit designs.
Overall, this buck converter is well-suited for applications requiring efficient step-down voltage conversion with a compact footprint.

Package

The TPS54331DDA is a step-down (buck) DC-DC converter by Texas Instruments, housed in an 8-pin SO PowerPAD™ (DDA) package. This package type enhances thermal performance and is ideal for compact applications where efficient heat dissipation is crucial.

Pinout

The TPS54331DDA is a step-down converter from Texas Instruments, designed for DC-DC conversion applications. It comes in an 8-pin SO PowerPAD™ package. Here is a brief overview of its pin configuration and functions:
1. BOOT (Pin 1): Bootstrap pin for connecting to a capacitor to power the high-side driver.
2. VIN (Pin 2): Input supply voltage pin for providing the input voltage to the device.
3. EN (Pin 3): Enable pin to turn the device on or off. High logic level enables the device.
4. COMP (Pin 4): Compensation pin used to stabilize the control loop with an external compensation network.
5. VSENSE (Pin 5): Feedback pin for monitoring the output voltage to regulate it accurately.
6. GND (Pin 6): Ground pin for connecting the device to the system ground.
7. PH (Pin 7): Phase node pin connected to the inductor for switching.
8. NC (Pin 8): No connect pin, typically not internally connected.
The device is commonly used in applications requiring high efficiency and compact design for power supply solutions.

Manufacturer

The TPS54331DDA is manufactured by Texas Instruments. Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components and integrated circuits. It serves various industries, including consumer electronics, automotive, industrial, and communications, providing solutions for power management, signal processing, and more.

Application

The TPS54331DDA is a step-down DC-DC converter commonly used in applications requiring efficient power management. Key application areas include distributed power systems, battery-powered devices, industrial equipment, consumer electronics, and automotive systems. It is ideal for applications needing stable and efficient voltage conversion, such as powering microcontrollers, FPGAs, and other digital logic circuits within these systems. Its compact size and high efficiency make it suitable for space-constrained designs.

Equivalent

The TPS54331DDA is a 3A, 28V step-down (buck) converter from Texas Instruments. Equivalent products include:
1. LM2596 by Texas Instruments
2. MP1584 by Monolithic Power Systems
3. LM2576 by Texas Instruments
4. AP1509 by Diodes Incorporated
5. LMR33630 by Texas Instruments
These alternatives offer similar functionalities, but specific features and performance may vary, so checking datasheets for compatibility with your application is recommended.

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