LM2575HVT-ADJ

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LM2575HVT-ADJ

IC REG BUCK ADJ 1A TO220-5

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Spécifications

Series SIMPLE SWITCHER®
Part Status Obsolete
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 4V
Voltage - Input (Max) 60V
Voltage - Output (Min/Fixed) 1.23V
Voltage - Output (Max) 57V
Current - Output 1A
Frequency - Switching 52kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Through Hole
Package / Case TO-220-5
Supplier Device Package TO-220-5
Base Product Number LM2575

Vue d'ensemble

Description

The LM2575HVT-ADJ is a versatile voltage regulator from Texas Instruments, part of the LM2575 series. It is designed for step-down (buck) voltage conversion, suitable for various applications requiring efficient power management. The "HVT" in the model indicates high-voltage tolerance, allowing the device to work with input voltages as high as 60V, making it ideal for applications with wide input voltage ranges.
The "ADJ" suffix signifies that this variant provides an adjustable output voltage, which can be set using an external resistor-divider network. This flexibility allows it to output a voltage between 1.23V and 37V, depending on the input voltage and external components.
The LM2575HVT-ADJ offers up to 1A of output current and incorporates features like thermal shutdown, current limiting, and an on/off pin for power saving. The device is known for its high efficiency, typically 88%, and is available in various package types, making it suitable for different design constraints.
Overall, the LM2575HVT-ADJ is ideal for applications needing reliable, adjustable power conversion with high input voltage capability.

Features

The LM2575HVT-ADJ is a versatile DC-DC step-down voltage regulator. Key features include:
1. Wide Input Voltage Range: It supports input voltages up to 60V, accommodating a variety of power sources.
2. Adjustable Output Voltage: The output voltage is adjustable between 1.23V and 57V, allowing flexibility for different applications.
3. Fixed Output Current: It provides a fixed output current of 1A, ensuring consistent performance.
4. High Efficiency: The regulator exhibits high efficiency, typically around 88%, reducing power loss and heat generation.
5. Simple Design: Minimal external components are required, simplifying circuit design.
6. Switching Frequency: It operates at a fixed frequency of 52 kHz, aiding in predictable performance.
7. Thermal Shutdown: Built-in thermal shutdown and current limit protection enhance reliability and safety.
8. Low Standby Current: The low standby current is advantageous for battery-operated devices.
9. Package Options: Available in TO-220 and TO-263 packages for various mounting preferences.
These features make the LM2575HVT-ADJ suitable for a wide range of applications requiring efficient voltage regulation, such as in industrial, consumer electronics, and automotive systems.

Package

The LM2575HVT-ADJ is typically available in a TO-220 package. It is a versatile voltage regulator, commonly used for its adjustable output capabilities and efficient performance in power management applications.

Pinout

The LM2575HVT-ADJ is a voltage regulator with a TO-220 package and an adjustable output. It typically has 5 pins, with the following functions:
1. VIN: This is the input voltage pin where the supply voltage is applied.
2. OUTPUT: The regulated output voltage is provided through this pin.
3. GROUND (GND): This is the ground pin for the device, used as a reference for the input and output voltages.
4. FEEDBACK (FB): Used to set the output voltage by connecting to a resistive divider from the output.
5. ON/OFF: This pin is used to enable or disable the regulator. When connected to ground, the device is enabled; when a high level is applied, it is disabled.
This configuration allows the LM2575HVT-ADJ to be used in various applications requiring a steady adjustable voltage output with a wide input voltage range.

Manufacturer

The LM2575HVT-ADJ is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company headquartered in Dallas, Texas. It designs and manufactures semiconductors and various integrated circuits, which are sold to electronics designers and manufacturers globally. TI is renowned for its wide range of products, including analog chips, digital signal processors, and embedded processors. The company serves various markets such as industrial, automotive, personal electronics, communications equipment, and enterprise systems. Texas Instruments is a well-established player in the semiconductor industry, known for innovation and engineering excellence.

Application

The LM2575HVT-ADJ is a versatile DC-DC buck converter used in various applications, including power management for microcontrollers, industrial automation systems, telecommunication equipment, and battery-powered devices. It is ideal for step-down voltage regulation in embedded systems, consumer electronics, and automotive applications due to its efficiency and adjustable output voltage capability. Its robustness makes it suitable for distributed power systems, where stable and reliable voltage conversion is crucial.

Equivalent

The LM2575HVT-ADJ is a voltage regulator from Texas Instruments. Equivalent products include the LM2596-ADJ, which is also a step-down voltage regulator with adjustable output; the MC34063, which is a versatile DC-DC converter; and the L4971, a step-down switching regulator. Always verify pin compatibility and electrical specifications before substituting components.

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