LM2575YN

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575YN is a monolithic integrated circuit step-down switching regulator manufactured by Microchip Technology. It operates with an input voltage range of 4V to 40V and provides a fixed output current capability of 1A. The device utilizes a Buck topology with a standard switching frequency of 52kHz. It is housed in a PDIP-16 package designed for through-hole installation. The component supports a wide operating temperature range from -40°C to +85°C, ensuring reliable performance in various industrial environments.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates all active functions required for a simple step-down switching regulator design
• Includes internal frequency compensation and a fixed-frequency oscillator
• Features adjustable output voltage capability ranging from 1.23V to 37V
• Supports external shutdown functionality for low standby power consumption

Voltage Regulators - DC DC Switching Regulators Applications

• General-purpose DC-to-DC step-down converter circuits
• Pre-regulator stages for linear post-regulators
• Battery-powered systems requiring efficient voltage reduction
• Industrial control power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation on the component marking, as the LM2575 series has been produced by multiple vendors including Texas Instruments and ON Semiconductor. Confirm that the specific part number corresponds to the Microchip Technology variant rather than other manufacturers' equivalents. Ensure the PDIP-16 through-hole package matches the target PCB footprint requirements before finalizing procurement decisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a through-hole solution is preferred over surface-mount options for the LM2575 family. It is suitable for applications requiring an adjustable output voltage up to 37V with a 1A load capacity. Consider the thermal management requirements associated with the PDIP-16 package under high load conditions. Verify compatibility with the required switching frequency and input voltage range for the specific power supply design.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM2575 series represents a widely adopted line of simple, efficient step-down regulators. The LM2575YN specifically denotes the adjustable version within this family, packaged in a PDIP-16 format. This series is known for replacing traditional three-terminal linear regulators to reduce heat dissipation issues. The component belongs to the broader PMIC category, focusing on basic DC-DC conversion tasks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575YWM (Microchip Technology)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage supported by the LM2575YN?

The LM2575YN supports a maximum input voltage of 40V.

Does the LM2575YN have a fixed or adjustable output voltage?

The LM2575YN features an adjustable output voltage range from 1.23V to 37V.

What is the switching frequency of the LM2575YN?

The device operates at a fixed switching frequency of 52kHz.