LMR14020SDDAR

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LMR14020SDDAR

IC REG BUCK ADJUSTABLE 2A 8SOPWR

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規格

Package Tape & Reel (TR),Cut Tape (CT)
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 2A
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 LMR14020SDDAR is a DC-DC buck converter from Texas Instruments, designed for efficient voltage step-down applications. It supports an input voltage range of 4.5V to 40V and can deliver up to 2A output current, making it suitable for a variety of industrial and automotive applications. The device features a fixed frequency of 700 kHz, which balances efficiency and size, allowing for compact designs with small external components.
Key features include high efficiency over a wide load range, internal compensation, and protection features like thermal shutdown and current limiting. The LMR14020SDDAR comes in an 8-pin SO PowerPAD package, enhancing thermal performance. The converter's design simplifies power supply solutions by integrating a high-side MOSFET and requiring minimal external components, leading to reduced board space and cost.
It's ideal for systems needing robust performance, compact size, and efficient power management, such as point-of-load conversions in distributed power systems. The device is also notable for its ease of use, thanks to its internal compensation and wide input voltage range, providing flexibility for various applications.

Features

The LMR14020SDDAR is a DC-DC buck converter from Texas Instruments. It features a wide input voltage range of 4.5V to 40V, making it suitable for a variety of applications including industrial and automotive systems. It delivers up to 2A of continuous output current, with high efficiency across the load range. This device operates at a fixed frequency of 1.1 MHz, which helps to minimize the size of external components while maintaining stable operation.
Key features include:
- Integrated high-side MOSFET for improved efficiency and reduced board space.
- Internal compensation, which simplifies design and reduces the need for external components.
- Protection features such as cycle-by-cycle current limit, thermal shutdown, and input undervoltage lockout for robust performance.
- A soft-start feature to limit inrush current during startup.
- An enable pin for easy system control and power sequencing.
The LMR14020SDDAR is housed in a small, thermally enhanced 8-pin SO PowerPAD package, making it suitable for compact designs.

Package

The LMR14020SDDAR is a step-down voltage regulator from Texas Instruments, packaged in an 8-pin SO PowerPAD (Small Outline) with an exposed pad for better thermal performance. The package type is denoted as "SOIC-8 with PowerPAD," which is suitable for surface mount assembly.

Pinout

The LMR14020SDDAR is a step-down (buck) voltage regulator from Texas Instruments. It has a pin count of 8, housed in an 8-pin WSON (Small Outline No-lead) package. The key functions of the pins are as follows:
1. SW (Switch Node): Connects to the inductor and is the switching node.
2. GND (Ground): Ground connection.
3. FB (Feedback): Used to set the output voltage through a resistor divider.
4. EN (Enable): Turns the device on or off; a high voltage enables the regulator.
5. VIN (Input Voltage): Powers the device and accepts input voltage.
6. BOOT (Bootstrap): Supplies a higher voltage to the high-side FET driver.
7. NC (No Connect): Not internally connected but may be used for mechanical stability.
8. VCC (Internal LDO Output): Provides power for the internal control circuitry.
This regulator is designed for applications requiring high efficiency and a compact solution, delivering up to 2 A of output current with an input voltage range of 4 V to 40 V.

Manufacturer

The LMR14020SDDAR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits for various industries. TI is well-known for its analog and embedded processing products, which are used in applications such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company is a leader in the electronics industry, focusing on innovation and providing solutions to enhance technology and development across different sectors.

Application

The LMR14020SDDAR is a step-down DC-DC converter commonly used in various applications such as telecommunications, industrial automation, automotive systems, and consumer electronics. Its compact design and efficiency make it ideal for powering microcontrollers, sensors, and other low-power devices. It is also suitable for use in battery-powered equipment, providing regulated output voltages from a wide input voltage range. Its robust performance and thermal efficiency are advantageous for applications requiring reliable power management in constrained spaces.

Equivalent

The LMR14020SDDAR is a step-down voltage regulator from Texas Instruments. Equivalent products from other manufacturers can include:
1. LM2596 (from Texas Instruments and other manufacturers) - A widely used step-down regulator with similar specifications.
2. MP1584 (from Monolithic Power Systems) - A compact, efficient step-down converter.
3. LMR33620 (another variant from Texas Instruments) - Offers similar functionality with different specifications.
4. AP3211 (from Diodes Incorporated) - A synchronous buck converter often used in similar applications.
Always check specific datasheets to ensure compatibility with your design requirements.

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