TPS54821RHLR

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TPS54821RHLR

IC REG BUCK ADJUSTABLE 8A 14VQFN

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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) 4.5V
Voltage-Input(Max) 17V
Voltage-Output(Min/Fixed) 0.6V
Voltage-Output(Max) 15V
Current-Output 8A
Frequency-Switching 200kHz ~ 1.6MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 14-VFQFN Exposed Pad

概述

Description

The TPS54821RHLR is a high-performance synchronous buck converter designed by Texas Instruments. It is part of the TPS54xxx family, which is known for its efficiency and reliability in power management applications. The TPS54821RHLR is suitable for a wide range of applications, including computing, telecom, and networking equipment.
Key features of the TPS54821RHLR include:
1. Input Voltage Range: It supports a 4.5V to 17V input voltage range, making it versatile for various power sources.
2. Output Current: It can deliver up to 8A of continuous output current, which is ideal for high-power applications.
3. Switching Frequency: The device operates at a fixed switching frequency of 480kHz, aiding in efficient power conversion and compact design.
4. Efficiency: High efficiency over a wide load range due to its synchronous rectification and low RDS(on) MOSFETs.
5. Thermal Performance: It features a thermally enhanced VQFN package for better heat dissipation.
6. Protection Features: The TPS54821RHLR includes overcurrent, thermal shutdown, and undervoltage lockout protection to ensure reliable operation.
Overall, the TPS54821RHLR is a robust solution for designing efficient power converters in complex electronic systems.

Features

The TPS54821RHLR is a high-performance synchronous buck converter designed by Texas Instruments. Key features include:
1. Input Voltage Range: Operates efficiently with a wide input voltage range of 4.5V to 17V, making it versatile for various power supply configurations.
2. Output Current: Capable of delivering up to 8A of continuous output current, suitable for powering high-current applications.
3. Switching Frequency: Supports a high switching frequency of up to 1 MHz, allowing for smaller external components and compact design.
4. Efficiency: Designed for high efficiency, reducing heat dissipation and improving overall system performance.
5. Soft Start and Tracking: Includes programmable soft start and voltage tracking capabilities to ensure smooth power-up and sequencing.
6. Protection Features: Offers protection mechanisms such as over-current protection (OCP), thermal shutdown, and under-voltage lockout (UVLO) to enhance system reliability.
7. Package: Comes in a compact 3.5mm x 4.5mm QFN package, making it suitable for space-constrained applications.
8. Flexibility: Provides adjustable output voltage settings, enabling customization for various application needs.
This combination of features makes the TPS54821RHLR suitable for a wide range of applications, including telecommunications, networking, and consumer electronics.

Package

The TPS54821RHLR is a buck converter from Texas Instruments, housed in a QFN (Quad Flat No-leads) package. Specifically, it comes in a 20-pin VQFN (Very Thin Quad Flat No-lead) package, measuring 3.5mm x 4.5mm, which is compact and suitable for high-density PCB designs.

Pinout

The TPS54821RHLR is a step-down converter from Texas Instruments, typically used in power management applications. It is packaged in a 3.5mm x 4.5mm VQFN (VSON) package and has a 20-pin count.
The primary function of the TPS54821RHLR is to convert higher input voltages to lower output voltages efficiently. It is designed to provide a continuous output current of up to 8 A, making it suitable for high-performance applications. The device supports input voltages between 4.5 V and 17 V and can deliver output voltages as low as 0.6 V, which is user-programmable.
Key features include a high-efficiency integrated MOSFET, adjustable switching frequency, and multiple protection mechanisms like overcurrent and thermal shutdown protections. The device is commonly used in applications such as computing, networking, and telecommunications equipment, where efficient and reliable power management is crucial.

Manufacturer

The TPS54821RHLR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. They are one of the largest semiconductor companies globally and serve a wide range of industries, including automotive, consumer electronics, industrial, and communications. TI's products are used in a variety of applications to enable advanced electronics, and they are known for their innovation in analog and embedded processing technologies.

Application

The TPS54821RHLR is a high-efficiency, synchronous step-down DC-DC converter. Its application areas include powering FPGAs, DSPs, ASICs, and microcontrollers in telecommunications, networking, and industrial equipment. It is also used in computing systems, servers, and storage devices. Its wide input voltage range and high output current capability make it suitable for use in distributed power systems and point-of-load applications.

Equivalent

The TPS54821RHLR is a DC-DC buck converter from Texas Instruments. Equivalent products can include similar buck converters from other manufacturers, such as:
1. LMR33630SDDAR from Texas Instruments
2. MP2316 from Monolithic Power Systems
3. LTC3623EDD from Analog Devices
4. MAX17504AATP+ from Maxim Integrated
Ensure that these alternatives meet the specific requirements, such as input voltage, output current, and switching frequency, of your application.

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