TPS54478RTER

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TPS54478RTER

IC REG BUCK ADJUSTABLE 4A 16WQFN

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規格

Package Tape & Reel (TR),Cut Tape (CT)
Series SWIFT™
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 2.95V
Voltage-Input(Max) 6V
Voltage-Output(Min/Fixed) 0.6V
Voltage-Output(Max) 4.5V
Current-Output 4A
Frequency-Switching 200kHz ~ 2MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 16-WFQFN Exposed Pad

概述

Description

The TPS54478RTER is a synchronous step-down DC-DC converter developed by Texas Instruments. It is part of the TPS54xxx series and is designed to provide efficient power management solutions for various applications, including telecommunications, networking, and industrial systems. The device operates with an input voltage range from 4.5V to 17V and can deliver an output current of up to 4A.
Key features of the TPS54478RTER include a high switching frequency, typically around 700kHz, which allows for smaller external components and reduced solution size. The device also includes internal MOSFETs for improved efficiency and reduced power loss. It features a wide range of protections, such as overcurrent protection, thermal shutdown, and an adjustable soft-start to prevent inrush current during startup.
The device's small 16-pin WQFN package makes it suitable for compact designs. Its integration of features and efficient operation makes the TPS54478RTER an excellent choice for designers looking to implement reliable power supply solutions with minimal space requirements.

Features

The TPS54478RTER is a high-performance DC-DC buck converter from Texas Instruments, designed for efficient power management applications. Key features include:
1. Output Current: The device supports up to 4 A of continuous output current, suitable for powering high-performance processors and memory.
2. Input Voltage Range: It operates over a wide input voltage range from 2.95 V to 6 V, accommodating various power sources.
3. Switching Frequency: The converter offers a selectable switching frequency of either 1 MHz or 2 MHz, allowing for optimization between efficiency and component size.
4. Efficiency: With its synchronous rectification and low RDS(on) MOSFETs, the TPS54478RTER provides high efficiency under heavy loads.
5. Integrated Components: The converter integrates a high-side and low-side MOSFET, reducing the need for external components and simplifying the design.
6. Protection Features: Includes over-current protection, thermal shutdown, and output short-circuit protection to enhance reliability.
7. Soft Start: A programmable soft-start feature helps manage inrush currents and ensure stable start-up.
8. Compact Package: Available in a 16-pin WQFN package, suitable for space-constrained applications.
These features make the TPS54478RTER ideal for applications requiring efficient and compact power management solutions, such as in consumer electronics and telecom equipment.

Package

The TPS54478RTER is packaged in a WQFN (Quad Flat No-Lead) package, specifically a 16-pin, 3.00 mm x 3.00 mm design. This package type is known for its compact size and efficient thermal performance, making it suitable for high-density applications.

Pinout

The TPS54478RTER is a step-down (buck) converter integrated circuit from Texas Instruments. It comes in a 16-pin WQFN (RTV) package. The primary function of this device is to convert a higher input voltage to a lower output voltage with high efficiency, often used in applications like telecom, networking, and computing equipment. Key features include a wide input voltage range, synchronous rectification for improved efficiency, and the ability to drive a high load current. The specific pin functions include connections for input voltage, output voltage, switching node, compensation network, and enable, among others. For detailed pin functionality, consulting the device's datasheet is recommended.

Manufacturer

The TPS54478RTER is manufactured by Texas Instruments (TI), a global semiconductor company. Texas Instruments is known for designing and manufacturing a wide array of electronic components and integrated circuits. It specializes in various areas such as analog electronics, embedded processors, and digital light processing technology, among others. TI serves a broad range of industries including automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company is recognized for its innovation in electronics and is a significant player in the semiconductor industry, known for enabling advancements in technology through its high-performance analog and embedded processing products.

Application

The TPS54478RTER is a step-down switch-mode power supply converter commonly used in applications requiring efficient voltage regulation. Its application areas include telecommunications, networking equipment, industrial automation, consumer electronics, computing systems, and portable devices. It is particularly suitable for applications that demand a high-efficiency power management solution with a compact footprint, such as powering FPGAs, DSPs, and ASICs.

Equivalent

Equivalent products to the TPS54478RTER, a synchronous buck converter, include:
1. LM43603 from Texas Instruments
2. MP2459 from Monolithic Power Systems
3. MAX17503 from Maxim Integrated
4. SY8106 from Silergy
5. LTC3610 from Analog Devices
These alternatives offer similar functionalities in terms of voltage regulation, output current capacity, and efficiency. Always check specific requirements and datasheets for compatibility.

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