LM2575T-ADJ/LF03

Voltage - Output (Min/Fixed):	1.23V
Base Part Number:	LM2575
Supplier Device Package:	TO-220-5
Package / Case:	TO-220-5 Formed Leads
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	52kHz
Current - Output:	1A
Voltage - Output (Max):	37V
Series:	SIMPLE SWITCHER®
Voltage - Input (Max):	40V
Voltage - Input (Min):	4V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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Introduction to LM2575T-ADJ/LF03

The LM2575T-ADJ/LF03 is a high-performance voltage regulator manufactured by Texas Instruments. It is a switching regulator type device, commonly used in power management and switch-mode power supply circuit designs. The LM2575T-ADJ/LF03 has a wide input voltage range from 4.5V to 40V, and is capable of providing an adjustable output voltage from 1.26V to 37V, with an adjustable current output of up to 5A.

Application Field

The LM2575T-ADJ/LF03 is a robust, reliable, and versatile regulator that is utilized in many different applications. It is typically used in applications such as portable and embedded systems, industrial power supplies, lighting systems, automotive dashboard displays, and low-power processors.

Working Principle

The LM2575T-ADJ/LF03 operates by utilizing a step-down, switching regulator circuit. This is achieved by an internal power transistor, which rapidly switches between on and off states. When the transistor is on, current is collected from the input source, and when it is off the current is briefly discharged into the output capacitor and is then directed toward the load. This switching process allows for the regulator to convert a higher input voltage into a lower regulated output voltage.The integrated feature of the LM2575T-ADJ/LF03 includes thermal shutdown and current limiting protection, making it an ideal choice for applications requiring a high degree of reliability. The regulator also has a low quiescent current of only 25mA, making it energy-efficient in power management applications. Additionally, the device can be synchronized to an external clock, allowing for improved noise reduction.

Conclusion

In summary, the LM2575T-ADJ/LF03 is a high-performance DC-DC switching voltage regulator, ideally suited for power management applications. It is capable of providing a reliable and adjustable output voltage, with a wide range of adjustable current outputs. It is a robust, reliable and versatile regulator, with integrated thermal shutdown, current limiting protection and low quiescent current. The LM2575T-ADJ/LF03 is a great choice for applications requiring high performance and reliability.

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