LM2574YN

Voltage - Output (Min/Fixed):	1.23V
Base Part Number:	LM2574
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	52kHz
Current - Output:	500mA
Voltage - Output (Max):	37V
Series:	--
Voltage - Input (Max):	40V
Voltage - Input (Min):	--
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

The LM2574YN is a DC-to-DC switching regulator that can be used in a variety of applications. It has an input voltage range of 4.5 V to 45 V and can accept an input current of up to 2A. It is designed to provide an adjustable output voltage up to 28V. It can be used to provide power for microcontrollers, charge pumps, and other low-power circuits. This device is also able to provide a constant current to the load, which allows for efficient and stable operation.

Design

The LM2574YN has a built in controller and power switch to provide power to the load. The controller can be configured for fixed frequency or pulse-width-modulation (PWM) operation. The power switch is also capable of delivering up to 2A of output current to the load. The device also includes various protection circuits and thermal protection which helps prevent faults or overloads.

Typical Application

The LM2574YN can be used in a variety of applications. It can be used to provide power for microcontrollers, PICs or other low-power circuits. It can also be used as a voltage regulator to maintain a constant voltage output. Furthermore, it can be used as a constant current source to provide a safe and steady current to the load. It is also suitable for use in isolated power supplies and applications that require high switching frequencies.

Features & Benefits

The LM2574YN offers a wide input voltage range and up to 28V output voltage. It can be used for fixed frequency or pulse-width-modulated operation. It also has integrated short circuit, over current and over temperature protection which helps prevent damage to the device or load. It has an adjustable output voltage regulator as well as an adjustable current limit.

Conclusion

The LM2574YN is a DC-to-DC switching regulator that can be used in a variety of applications. It has a wide input voltage range of 4.5 V to 45 V and can accept an input current of up to 2A. It has an adjustable output voltage up to 28V and can be used to provide power for microcontrollers, PICs or other low-power circuits. It is also capable of providing a constant current to the load and offers integrated protection circuits and thermal protection. Furthermore, the device can be used in isolated power supplies and applications that require high switching frequencies.

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