Part Number: LM2575T-5.0

Manufacturer: Texas Instruments

Description: IC REG BUCK 5V 1A TO220-5

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of LM2575T-5.0

Datasheet  LM2575T-5.0 datasheet
Category Integrated Circuits (ICs)
Family PMIC – Voltage Regulators – DC DC Switching Regulators
Manufacturer Texas Instruments
Packaging Tube
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Fixed
Number of Outputs 1
Voltage – Input (Min) 4V
Voltage – Input (Max) 40V
Voltage – Output (Min/Fixed) 5V
Voltage – Output (Max)
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

LM2575T-5.0/LB03 Introduction

The LM2575T-5.0 is a versatile buck switching regulator IC that offers reliable voltage regulation for a wide range of applications. With its fixed 5V output voltage and high output current capability, it provides stable power delivery to meet the demands of various electronic systems. This compact IC is available in a TO-220-5 package, making it easy to integrate into your circuit designs.

In this comprehensive guide, we will explore the features, operating principles, applications, and design considerations of the LM2575T-5.0. By understanding its capabilities and benefits, you can effectively utilize this IC in your voltage regulation projects and ensure optimal performance. Let’s dive in and discover the possibilities that the LM2575T-5.0 offers for your electronic designs.

LM2575T-5.0/LB03 Operating Principles

The LM2575T-5.0 is a type of voltage step-down converter called a buck-switching regulator. Its main job is to turn a higher input voltage into a smaller output voltage as quickly as possible. Because of this, it is especially useful in places where stable and controlled power is needed.

A power transistor quickly turns on and off the input voltage. This is how the buck-switching regulator works. When the switch is on, energy is saved in an inductor. When the switch is off, this energy is sent to the output through a diode and a filter capacitor. The LM2575T-5.0 does a good job of regulating the output voltage by controlling the duty cycle of the switching transistor.

The fact that the LM2575T-5.0 can keep a constant 5 volt output voltage is one of its best features. This is very important for making sure that different computer parts and systems get stable power. The LM2575T-5.0 makes sure that 5V is always sent to microcontrollers, sensors, and other sensitive devices.

The LM2575T-5.0 also has a very high peak current of 1 A.This means it can send up to 1 A of electricity to power motors, displays, and other components that need a lot of power. The IC can handle a wide range of uses that need strong power delivery because it can put out a lot of current.

With its buck-switching operation, fixed 5V output voltage, and high output current, the LM2575T-5.0 is a stable and efficient power source for applications that need to step down the voltage.

LM2575T-5.0/LB03 Key Features and Specifications

The LM2575T-5.0 is a good choice for voltage step-down applications because it has a number of important features and specs that make it reliable. Let’s look into them:

  • Fixed 5V Output Voltage: The LM2575T-5.0 is made so that the output voltage is always 5V. This fixed voltage level works well for tasks that need a steady and well-controlled power source. Whether you’re powering microcontrollers, digital circuits, or other sensitive parts, the LM2575T-5.0 makes sure they get the right amount of energy to work.
  • High Output Current Capability: The LM2575T-5.0 can power heavy loads efficiently because it has a high output current capability of 1 A.This means that it can be used to power a wide range of parts, such as motors, screens, and other power-hungry devices. The high output current makes sure that these things get the power they need without affecting how well they work.
  • TO-220-5 Package with Formed Leads: The LM2575T-5.0 comes in a TO-220-5 package with formed leads. This choice for a package makes it easy to use and add to your circuit designs. The TO-220-5 package is often used because it is durable and has good thermal properties that help it get rid of heat well in power applications. The formed leads make the process of soldering and mounting even easier, so engineers and technicians can use them with ease.

The LM2575T-5.0 is a reliable and efficient option for voltage step-down applications. It has a fixed output voltage of 5 volts, can output a high current, and comes in a convenient TO-220-5 package with formed leads. The LM2575T-5.0 gives you stable power delivery and easy integration, whether you are working on power supplies, battery chargers, or other electrical projects.

LM2575T-5.0/LB03 Applications

The LM2575T-5.0 is used in many electronic systems that need to step down the voltage and have a stable power source. Here are some of the many ways it can be used:

  • Power Supplies: The LM2575T-5.0 is often used in power source designs because it gives a reliable 5V output that is regulated. It can be used in applications that need a stable voltage source, like embedded systems, microcontrollers, and digital circuits.
  • Battery Chargers: The LM2575T-5.0 can be used in battery chargers to step down the input voltage to a level that is good for charging batteries. Its fixed 5V output makes sure that a wide range of battery-powered products can be charged in a consistent and controlled way.
  • LED Drivers: The LM2575T-5.0 can be used as a standalone LED driver. It can drive LED arrays or single LEDs with a fixed 5V output. Its high output current capability of 1 A makes it easy and reliable to light LEDs in uses like signs, lighting fixtures, and car lighting.
  • Portable Electronics: The LM2575T-5.0 is a good choice for portable electronics because of its small TO-220-5 package and good voltage control. It can power different parts of portable systems like portable audio players, handheld devices, and portable measurement tools.

The fact that the LM2575T-5.0 can always output 5 volts makes it useful in a wide range of electrical systems. It can be used for more than the things listed above because it can be used anywhere a stable, regulated voltage source is needed.

Explore how the LM2575T-5.0 can be used in your designs for power supplies, battery charging circuits, LED driver uses, and other portable electronics projects. It is a useful part for powering a wide range of electrical systems because it is reliable, efficient, and can always output 5 volts.


To summarize, the LM2575T-5.0 is a versatile buck switching regulator IC that provides a fixed 5V output voltage and can handle high output current. The broad scope of its applications encompasses power supplies, battery chargers, LED drivers, and portable electronics. Incorporating the LM2575T-5.0 into voltage step-down designs can guarantee stable power delivery and efficient operation.

ICRFQ, a reputable Chinese distributor of electronic components, is an excellent choice for conveniently procuring the LM2575T-5.0. Their services are reliable and timely, ensuring a seamless purchasing experience for your projects.

Experience the advantages of stable power delivery and efficient operation by utilizing the LM2575T-5.0 in your voltage step-down designs to unlock its full potential. Streamline your procurement process and embark on your electronic ventures with confidence by placing your order with ICRFQ.

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