TPS54340QDDARQ1

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TPS54340QDDARQ1

IC REG BCK SPLIT RAIL ADJ 8SOPWR

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Spezifikationen

Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series Automotive, AEC-Q100, Eco-Mode™
ProductStatus Not For New Designs
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) 41V
Current-Output 3.5A
Frequency-Switching 100kHz ~ 2.5MHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 8-PowerSOIC (0.154, 3.90mm Width)

Übersicht

Description

The TPS54340QDDARQ1 is a high-performance, automotive-grade step-down converter from Texas Instruments. It is part of the company's AEC-Q100 qualified products, which ensure reliability and robustness for automotive applications. This device can handle a wide input voltage range from 4.5V to 42V and delivers up to 3.5A of continuous output current.
Key features include a high-efficiency pulse-width modulation (PWM) control, an adjustable switching frequency ranging from 100 kHz to 2.5 MHz, and a low-dropout (LDO) mode for light-load efficiency. It also integrates protection features such as overcurrent protection, overtemperature protection, and undervoltage lockout.
The TPS54340QDDARQ1 is designed for ease of use with an adjustable output voltage and requires minimal external components, making it suitable for a variety of automotive applications like infotainment and advanced driver-assistance systems (ADAS). The device comes in a thermally enhanced 8-pin SO PowerPAD™ package, which aids in heat dissipation. Overall, this step-down converter is a reliable choice for high-efficiency power delivery in automotive environments.

Features

The TPS54340QDDARQ1 is a buck converter from Texas Instruments, designed for automotive applications. It offers a wide input voltage range from 4.5 V to 42 V, making it suitable for various power systems. The device can deliver up to 3.5 A of continuous output current.
Key features include a high-efficiency pulse-width modulation (PWM) controller with an integrated high-side MOSFET, which enhances performance while minimizing the need for external components. The switching frequency is adjustable between 100 kHz and 2.5 MHz, allowing for either improved efficiency or smaller external components.
The TPS54340QDDARQ1 features an adjustable soft-start, enabling controlled output voltage ramp-up, reducing inrush current during startup. It also includes a voltage supervisor with power-good output and thermal shutdown protection to ensure reliable operation under fault conditions. The device supports synchronization to an external clock, providing flexibility in design.
The package is a thermally enhanced SO-8 (DDA) with PowerPAD, facilitating effective heat dissipation. Its AEC-Q100 qualification ensures reliability in automotive environments. Overall, the TPS54340QDDARQ1 is a robust choice for automotive applications requiring efficient and reliable DC/DC conversion.

Package

The TPS54340QDDARQ1 is a DC-DC buck converter from Texas Instruments, provided in an 8-pin SO PowerPAD package. This package type is designed to enhance thermal performance and is suitable for automotive applications.

Pinout

The TPS54340QDDARQ1 is a 3.5 A, 42 V step-down (buck) converter with a high-side MOSFET. It is designed for automotive and industrial applications. The device typically comes in an 8-pin package, specifically the HVSSOP (DDA) package. Here are the pin functions:
1. BOOT: Bootstrap capacitor pin for the high-side gate driver.
2. VIN: Input voltage supply pin, supporting up to 42 V.
3. EN: Enable pin to turn the device on or off.
4. SS/TR: Soft-start and tracking pin to control the output voltage ramp rate.
5. COMP: Compensation pin for stability and transient response.
6. RT/CLK: Frequency set and synchronization pin.
7. GND: Ground pin for the power and signal ground.
8. SW: Switching output pin, connected to the inductor.
These functions enable the TPS54340QDDARQ1 to efficiently convert a higher input voltage to a regulated lower output voltage, making it suitable for powering various loads in automotive and industrial systems.

Manufacturer

The TPS54340QDDARQ1 is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. They are a major player in the electronics industry, providing products for a wide range of applications, including automotive, industrial, personal electronics, and communication equipment. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovation and leadership in the electronics sector, particularly in analog and embedded processing technologies.

Application

The TPS54340QDDARQ1 is a high-efficiency, synchronous step-down DC-DC converter suitable for automotive applications. It is commonly used in automotive infotainment systems, advanced driver-assistance systems (ADAS), body electronics, and power management for microcontrollers and processors. Its wide input voltage range and robust design make it ideal for handling the demanding electrical environments found in vehicles.

Equivalent

The TPS54340QDDARQ1 is a 3.5 A, 42 V step-down DC-DC converter from Texas Instruments. Equivalent products from other manufacturers might include:
1. LM2675 by Texas Instruments - A 1A step-down voltage regulator.
2. MP2459 by Monolithic Power Systems - A 3.5A, 42V step-down converter.
3. LT8609 by Analog Devices - A 2A, 42V synchronous step-down regulator.
Always check the specific electrical and thermal characteristics to ensure compatibility with your application.

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