TPS54540BDDAR

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TPS54540BDDAR

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規格

Package Tape & Reel (TR),Cut Tape (CT)
Series Eco-Mode™
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck, Split Rail
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 4.5V
Voltage-Input(Max) 42V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 41.1V
Current-Output 5A
Frequency-Switching 500kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 8-PowerSOIC (0.154, 3.90mm Width)

概述

Description

The TPS54540BDDAR is a step-down (buck) DC-DC converter from Texas Instruments. It is designed to efficiently convert input voltages ranging from 5.5V to 42V into a lower, adjustable output voltage between 0.8V and 95% of the input voltage. This flexibility makes it suitable for a wide range of applications, including industrial and consumer electronics.
Key features of the TPS54540BDDAR include a maximum output current of 5A, high efficiency (up to 95%), and a switching frequency adjustable from 100 kHz to 2.5 MHz. It also offers enhanced protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout, ensuring reliable operation in various conditions.
The device comes in an 8-pin SO PowerPAD package, facilitating effective heat dissipation. Its compact design and high performance make it ideal for space-constrained environments that require robust power solutions.
Overall, the TPS54540BDDAR is a versatile and efficient power management solution for applications requiring reliable voltage regulation in a compact footprint.

Features

The TPS54540BDDAR is a step-down DC-DC converter from Texas Instruments. Key features include:
1. Wide Input Voltage Range: Capable of operating with an input voltage from 5.5V to 42V, suitable for various applications including industrial and automotive.
2. Output Current: Supports up to 5A continuous output current, making it ideal for moderate power applications.
3. Efficiency: High efficiency, often exceeding 90% depending on the load and input/output conditions, which reduces heat generation.
4. Adjustable Output Voltage: The output voltage is adjustable from 0.8V to 90% of the input voltage, providing flexibility for different application needs.
5. Switching Frequency: Features a fixed switching frequency of 500 kHz, which aids in reducing the size of external components.
6. Protection Features: Includes built-in protection features such as cycle-by-cycle current limit, thermal shutdown, and undervoltage lockout to ensure robust operation.
7. Package: Offered in a small thermally-enhanced 8-pin SO PowerPAD™ (DDA) package, which aids in efficient heat dissipation.
These features make the TPS54540BDDAR a versatile and reliable choice for point-of-load power supplies in various sectors.

Package

The TPS54540BDDAR is a step-down converter from Texas Instruments, and it comes in an 8-pin SO PowerPAD package.

Pinout

The TPS54540BDDAR is a step-down (buck) DC-DC converter from Texas Instruments. It comes in an 8-pin HSOP (Heat-Sinked Small Outline Package) package. The functions of the pins are as follows:
1. BOOT: Bootstrap capacitor connection for the high-side FET gate drive.
2. VIN: Input voltage supply pin.
3. EN: Enable pin to turn the device on or off.
4. SS/TR: Soft Start/Tracking pin to control the soft start time or track an external voltage.
5. COMP: Compensation pin for loop compensation.
6. RT/CLK: Frequency set pin, which can also accept an external clock signal for synchronization.
7. PH: Switching (Phase) node output, connected to the inductor.
8. GND: Ground pin.
These pins together allow the TPS54540BDDAR to efficiently convert a higher input voltage to a lower output voltage with adjustable frequency and soft start features.

Manufacturer

The TPS54540BDDAR is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are sold to electronics designers and manufacturers globally. TI is one of the top semiconductor companies in the world and is known for its innovation in analog and embedded processing products. The company focuses on developing analog chips and embedded processors, which are essential components for a wide range of electronic devices, including consumer electronics, automotive systems, industrial equipment, and communication devices. TI's products and solutions are designed to improve power efficiency, reliability, and performance across various applications.

Application

The TPS54540BDDAR is a DC-DC buck converter used in a variety of applications requiring efficient power management. Its application areas include industrial power systems, consumer electronics, automotive systems, and communications equipment. It's particularly useful in applications needing high-efficiency voltage regulation and load current delivery, such as powering microcontrollers, DSPs, FPGAs, and other digital circuits. The device is ideal for systems requiring a wide input voltage range, making it suitable for battery-powered devices and power conditioning from various power sources.

Equivalent

The TPS54540BDDAR is a DC-DC buck converter from Texas Instruments. Equivalent products might include:
1. LM22670 - from Texas Instruments, a 42V, 3A Step-Down Regulator.
2. LM2676 - another Texas Instruments part, 3A Step-Down Voltage Regulator.
3. LT8610 - from Analog Devices, a 42V, 2.5A Synchronous Step-Down Regulator.
4. MP1584 - from Monolithic Power Systems, a 28V, 3A Synchronous Step-Down Converter.
Check each product's datasheet to ensure compatibility with specific application requirements.

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