TPS5431DDAR

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TPS5431DDAR

IC REG BUCK ADJ 3A 8SOPWR

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規格

Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 5.5V
Voltage - Input (Max) 23V
Voltage - Output (Min/Fixed) 1.221V
Voltage - Output (Max) 20.47V
Current - Output 3A
Frequency - Switching 500kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 8-PowerSOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SO PowerPad
Base Product Number TPS5431

概述

Description

The TPS5431DDAR is a step-down (buck) voltage regulator from Texas Instruments designed to provide efficient power management for various applications. It features a wide input voltage range of 4.5V to 17V and delivers output currents up to 3A. The device operates with a high efficiency, minimizing heat generation and enhancing reliability.
Key features include adjustable output voltage, a built-in switch, and a variety of protection mechanisms such as overcurrent, thermal shutdown, and under-voltage lockout. The TPS5431DDAR employs an easy-to-use design with few external components, making it suitable for applications including power supplies for processors, FPGAs, and other digital devices.
The regulator also incorporates features like frequency synchronization and enable control, allowing designers to optimize performance for specific applications. With its compact package and robust performance, the TPS5431DDAR is ideal for space-constrained environments requiring reliable and efficient power solutions.

Features

The TPS5431DDAR is a high-efficiency, step-down (buck) voltage regulator designed for a wide range of applications. Key features include:
1. Input Voltage Range: Operates from 4.5V to 17V, accommodating various power sources.
2. Output Current: Capable of delivering up to 3A output current.
3. Adjustable Output Voltage: Output voltage can be set from 0.8V to 5.5V, allowing flexibility for different requirements.
4. High Efficiency: Achieves efficiency up to 95%, reducing heat generation and improving system reliability.
5. Integrated Switch: Incorporates a high-side MOSFET to simplify design and minimize component count.
6. Compensation: Features internal compensation for ease of use and stability across different loads.
7. UVLO and Thermal Protection: Provides under-voltage lockout and thermal shutdown for enhanced safety.
8. Small Package: Available in a compact HTQFP package, ideal for space-constrained designs.
These features make the TPS5431DDAR suitable for various applications, including point-of-load power supplies and distributed power systems.

Package

The TPS5431DDAR is offered in a VQFN (Very Thin Quad Flat No-lead) package. Specifically, it has a 16-pin configuration with a compact footprint ideal for space-constrained applications.

Pinout

The TPS5431DDAR is a synchronous step-down (buck) regulator from Texas Instruments. It comes in a 28-pin HTQFP (Thin Quad Flatpack) package.
Pin Count: 28 Pins
Key Functions:
1. VIN - Input voltage supply.
2. SW - Switch node for connecting to the inductor.
3. GND - Ground reference.
4. VOUT - Output voltage.
5. COMP - Compensation network connection for stability.
6. FB - Feedback input for voltage regulation.
7. SWC - Switching node control.
8. CSN/ISP - Current sense negative/input.
9. CSP/ISN - Current sense positive/output.
Additional pins provide functions for enabling, operating modes, and soft-start features, aiding in the regulation of output voltage with high efficiency. The TPS5431DDAR is designed for applications requiring a compact solution with good thermal performance and high output current capability.

Manufacturer

The TPS5431DDAR is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments specializes in designing and producing semiconductors and various integrated circuits, with a strong focus on analog, digital signal processing, and embedded processing solutions. Founded in 1930, TI is known for its innovation in electronic components used across a wide range of industries, including automotive, industrial, consumer electronics, and communications. The TPS5431DDAR itself is a step-down power regulator, commonly used in power management applications to efficiently convert voltage in electronic circuits. Texas Instruments is recognized for its commitment to quality and reliability in the semiconductor market.

Application

The TPS5431DDAR is a step-down voltage regulator primarily used in applications such as point-of-load (POL) power supplies for processors, FPGAs, and other digital circuits. It is suitable for automotive systems, industrial equipment, and telecom infrastructure due to its high efficiency and compact design. Additionally, it is utilized in battery-powered devices and high-performance consumer electronics for efficient power management.

Equivalent

Equivalent products to the TPS5431DDAR chip include:
1. LM2596 - A similar step-down voltage regulator.
2. LM2675 - Another buck regulator option.
3. LTC3780 - A high-performance buck converter.
4. MIC29302 - A low dropout regulator with similar output capabilities.
5. LM3481 - Buck converter with a similar voltage range.
Check datasheets for specifications to ensure compatibility with your application.

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