LMR14030SDDA

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LMR14030SDDA

IC REG BUCK ADJ 3.5A 8SOPWR

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規格

Package Bulk,Tube
Series SIMPLE SWITCHER®
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 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
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 8-PowerSOIC (0.154, 3.90mm Width)

概述

Description

The LMR14030SDDA is a synchronous buck regulator from Texas Instruments, designed for efficient voltage conversion in power management applications. It is part of the SIMPLE SWITCHER® family and supports a wide input voltage range from 4.0V to 40V, making it suitable for a variety of applications such as automotive systems, industrial equipment, and consumer electronics. The device can deliver up to 3A of output current, ensuring robust performance in demanding environments.
Key features of the LMR14030SDDA include its high efficiency, which is achieved through a low RDS(on) N-channel MOSFET, and its ability to operate at a fixed switching frequency of 500 kHz or 1 MHz, allowing for the use of smaller external components. It also includes protection features such as cycle-by-cycle current limit, thermal shutdown, and output short protection to enhance reliability.
The LMR14030SDDA comes in a thermally enhanced 8-pin SO PowerPAD™ package, which aids in heat dissipation. Overall, the device is designed to simplify design and implementation while offering robust performance for a range of applications.

Features

The LMR14030SDDA is a step-down DC-DC converter from Texas Instruments. It features a wide input voltage range from 4.5V to 40V, making it suitable for various applications, including automotive and industrial systems. The device can deliver up to 3A of continuous output current and operates with high efficiency due to its low RDS(on) power MOSFETs and an advanced switching control mechanism.
Key features include a fixed switching frequency of 700 kHz, which helps in reducing the size of external components, and an adjustable output voltage via an external resistor divider. It also offers protection features such as thermal shutdown, cycle-by-cycle current limit, and an adjustable soft-start to prevent inrush current during startup.
The LMR14030SDDA supports both Eco-mode for light-load efficiency and a Pulse-Skipping mode to maintain regulation. It is available in a 8-pin SO PowerPAD package, enhancing thermal performance. The device's small footprint and integrated features make it ideal for compact and high-performance power supply designs.

Package

The LMR14030SDDA is packaged in an 8-pin SO PowerPAD (DDA) package. This package facilitates heat dissipation and is designed for surface-mount applications, enhancing thermal performance and robustness in various electronic applications.

Pinout

The LMR14030SDDA is a step-down voltage regulator integrated circuit from Texas Instruments. It comes in a 8-pin package with the following pin functions:
1. SW (Switching Node): Pin for connecting the inductor and diode.
2. VIN (Input Voltage): Supplies the input voltage for the regulator.
3. EN (Enable): Enables or disables the device; high to enable.
4. BOOT (Bootstrap): Supplies the drive voltage for the high-side MOSFET.
5. GND (Ground): Ground reference for the circuit.
6. FB (Feedback): Provides voltage feedback to set the output voltage.
7. RT/CLK (Frequency Setting/Clock Input): Sets the switching frequency or synchronizes with an external clock.
8. COMP (Compensation): Connects the compensation network to stabilize the system.
This IC is designed for efficient power conversion in various applications, offering features like overcurrent protection, thermal shutdown, and adjustable output voltage.

Manufacturer

The manufacturer of the LMR14030SDDA is Texas Instruments. Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. The company is well-known for its wide range of products, including analog chips and embedded processors, which serve industries such as automotive, industrial, personal electronics, communications equipment, and enterprise systems.

Application

The LMR14030SDDA is a DC-DC buck converter typically used in applications requiring efficient voltage regulation. Its application areas include industrial and automotive power supplies, battery-powered devices, distributed power systems, and telecom equipment. It is well-suited for systems needing reliable step-down power conversion with minimal external components, and its wide input voltage range makes it versatile for various electronic systems.

Equivalent

Equivalent products to the LMR14030SDDA, a DC-DC buck converter, include the LM2596, LM2678, and LM22670 from Texas Instruments. Other manufacturers offer similar products, such as the LT8640 from Analog Devices, the MP1584 from Monolithic Power Systems, and the LM2576 from ON Semiconductor. Ensure compatibility by checking specifications like input voltage range, output current, and switching frequency.

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