LMR14030SQDDAQ1

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LMR14030SQDDAQ1

+BOM

IC REG BUCK ADJ 3.5A 8SOPWR

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  • 패키지 SOIC-8

  • 재고6349

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사양

속성 가치
Package / Case Tube
Series Automotive, AEC-Q100, SIMPLE SWITCHER®
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 4V
Voltage - Input (Max) 40V
Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 28V
Current - Output 3.5A
Frequency - Switching 200kHz ~ 2.5MHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount

개요

Description

The LMR14030SQDDAQ1 is a DC-DC buck converter from Texas Instruments, designed for automotive applications. It is part of the AEC-Q100 qualified family, ensuring high reliability in automotive environments. The device features an input voltage range of 4 V to 40 V, making it suitable for a wide array of applications, including automotive battery systems.
Key specifications include a 3.5 A continuous output current capability, an adjustable output voltage range from 0.8 V to 36 V, and a switching frequency of up to 2.1 MHz. The high-efficiency operation ensures minimal power loss and heat generation, which is crucial for space-constrained automotive environments.
The LMR14030SQDDAQ1 incorporates various protection features, such as cycle-by-cycle current limit, thermal shutdown, and short-circuit protection, enhancing its robustness and reliability. It also offers a low quiescent current, which helps in extending battery life in automotive applications. The package is a small footprint 8-pin SO PowerPAD, facilitating easy integration into compact designs.

Equivalent

Equivalent products to the LMR14030SQDDAQ1, a 40V, 3.5A step-down DC-DC converter from Texas Instruments, might include similar buck converters from other manufacturers. Some alternatives are the LM2596 from Texas Instruments, MP1584 from Monolithic Power Systems, and LT8608 from Analog Devices. Key parameters to match include input voltage range, output current capability, switching frequency, and package type. Always verify the specifications and pin compatibility before choosing a substitute.

Features

The LMR14030SQDDAQ1 is a compact, automotive-grade DC-DC buck converter from Texas Instruments. It features an input voltage range of 4.0 V to 40 V, making it suitable for automotive and industrial applications. The device can deliver up to 3 A of continuous output current with high efficiency. It operates at a fixed frequency of 2.1 MHz, allowing for reduced component size and lower EMI. The converter supports adjustable output voltage, typically ranging from 0.8 V to 90% of the input voltage.
Additional features include a low standby current for improved efficiency in light-load conditions, an enable pin for system control, and a power-good output to indicate the status of the output voltage. It also includes protection features such as thermal shutdown, cycle-by-cycle current limit, and short-circuit protection. The device is available in a 10-pin WSON package, which provides a compact solution for space-constrained applications. Overall, the LMR14030SQDDAQ1 is optimized for use in automotive systems but is versatile enough for other demanding power management applications.

Pinout

The LMR14030SQDDAQ1 is a buck converter IC manufactured by Texas Instruments. It typically comes in a 10-pin WSON (DSQ) package. This device is designed for automotive applications, providing a high-efficiency step-down (buck) conversion from a wide input voltage range to a lower output voltage.
Here is a concise summary of its pin functions:
1. VIN: Input voltage pin. Connects to the input power source.
2. EN: Enable pin. Used to turn the device on or off.
3. RT/CLK: Resistor timing and clock synchronization pin. Sets the switching frequency.
4. SW (Switch): Connects to the inductor for switching the regulator.
5. BOOT: Bootstrap capacitor connection. Provides the drive voltage for the high-side MOSFET.
6. GND: Ground pin. Common return for input and output.
7. FB: Feedback input pin. Connects to the output to set the output voltage.
8. COMP: Compensation pin. Used for stability and transient response tuning.
9. VCC: Internal regulator output. Bypassed with a capacitor.
10. PG (Power Good): Open-drain output indicating if the output voltage is within regulation.
These pins support the operation and control of the buck conversion process, catering to efficient power management in automotive systems.

Manufacturer

The LMR14030SQDDAQ1 is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which they sell to electronics designers and manufacturers globally. TI is one of the top 10 semiconductor companies worldwide, known for its innovative products that serve diverse industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company is recognized for its strong emphasis on research and development, as well as its substantial portfolio of analog chips, digital light processors (DLP), education technology products, and embedded processors.

Application

The LMR14030SQDDAQ1 is a DC-DC buck converter designed for automotive applications. Its key application areas include automotive power systems for infotainment, advanced driver-assistance systems (ADAS), and body electronics. It is suitable for providing stable voltage rails in battery-powered systems, managing power in electronic control units (ECUs), and powering microcontrollers and sensors. Its robustness and efficiency make it ideal for use in harsh automotive environments where reliable power conversion is critical. Additionally, it can be used in any application requiring a compact, efficient, and reliable buck converter, such as industrial and telecommunications systems.

Package

The LMR14030SQDDAQ1 is a Texas Instruments automotive-qualified, step-down voltage regulator. It comes in a WSON (Wettable Flank Small Outline No-Lead) package, specifically a 10-pin DDA package, which measures 4.00 x 4.00 mm. This package type supports enhanced thermal performance and is suitable for compact, high-performance automotive applications.

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