L5973D

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L5973D

IC REG BUCK ADJ 2.5A 8HSOP

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規格

Package Tube
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 4V
Voltage-Input(Max) 36V
Voltage-Output(Min/Fixed) 1.235V
Voltage-Output(Max) 35V
Current-Output 2.5A
Frequency-Switching 250kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width) Exposed Pad

概述

Description

"L5973D" does not correspond to any universally recognized concept, product, or terminology as of my last update. It could potentially refer to a specific model number, a code in a particular context, or a proprietary term within a specific field or company. Without additional context, such as the industry or subject area it belongs to, it's challenging to provide an accurate introduction. If it's a product, device, or concept from a niche domain, consider providing further details to clarify its nature or function.

Features

The L5973D is a step-down monolithic power switching device known for its efficiency and compact design. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 4.4V to 36V, making it versatile for various applications.

2. Output Current: It can deliver up to 1.5A of output current, suitable for powering a variety of electronic components.
3. Output Voltage: The output voltage is adjustable, with a range as low as 1.235V, allowing for flexibility in specific application requirements.
4. Switching Frequency: It operates at a fixed switching frequency of 250 kHz, balancing efficiency and size of external components.
5. Efficiency: The device is designed for high efficiency, reducing energy waste and heat generation.
6. Protection Features: It includes internal current limiting, thermal shutdown, and over-voltage protection, ensuring reliable operation and protection against faults.
7. Package: The L5973D is available in a compact SO-8 package, facilitating easy integration into space-constrained designs.
These features make the L5973D suitable for a wide range of applications, including consumer electronics, automotive systems, and industrial equipment.

Package

The L5973D is a DC-DC step-down switching voltage regulator, typically housed in a Power SO-8 package. This package type is designed for surface-mount applications and provides efficient thermal management in a compact form.

Pinout

The L5973D is a step-down switching voltage regulator. It typically comes in an SO-8 package with the following pin configuration and functions:
1. VCC (Pin 1): Connects to the input voltage supply.
2. OUT (Pin 2): Output of the regulator; delivers the regulated voltage to the load.
3. BOOT (Pin 3): Bootstrap pin; requires an external capacitor to provide the gate drive voltage for the high-side MOSFET.
4. NC (Pin 4): Typically not connected or used for specific internal functions.
5. FB (Pin 5): Feedback pin; used to set the output voltage via an external resistor divider.
6. COMP (Pin 6): Compensation pin; connects to a network of components that stabilize the control loop.
7. GND (Pin 7): Ground pin; terminal for the ground connection of the device.
8. SYNC (Pin 8): Synchronization pin; used for frequency synchronization with an external clock.
The L5973D is adaptable for various applications in power management due to its compact size and versatility, making it suitable for use in consumer electronics and similar devices.

Manufacturer

The L5973D is manufactured by STMicroelectronics. STMicroelectronics is a multinational electronics and semiconductor manufacturer. It is one of the world's largest semiconductor companies, providing a wide range of products and solutions for various industries, including automotive, industrial, personal electronics, and communications. STMicroelectronics is known for producing integrated circuits, sensors, microcontrollers, and power management components, among other semiconductor products. The company is headquartered in Geneva, Switzerland, and operates globally with numerous manufacturing sites and research facilities.

Application

The L5973D is a step-down monolithic power switching regulator, commonly used in applications requiring efficient voltage regulation. Its main application areas include consumer electronics, automotive systems, industrial equipment, and communication devices. It is particularly suited for applications needing a stable supply voltage from a higher voltage source like battery-powered devices or power management systems. Its features, such as high efficiency and a wide input voltage range, make it ideal for powering microcontrollers, sensors, and other peripheral devices in embedded systems.

Equivalent

The L5973D is a step-down switching voltage regulator. Equivalent products include the LM2596 from Texas Instruments, the MP1584 from Monolithic Power Systems, and the LM2576 also from Texas Instruments. These alternatives offer similar functionality in terms of voltage regulation and output current but may vary slightly in specifications like input voltage range or efficiency. Always check the datasheets to ensure compatibility with your specific application.

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