LM2575-12YN

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575-12YN is a monolithic integrated circuit providing step-down (buck) switching regulator functions. It delivers a fixed 12V output with a maximum load current of 1A. The device operates from an input voltage range of 4V to 40V at a standard switching frequency of 52kHz. It utilizes pulse width modulation control and includes internal frequency compensation. The component is housed in a PDIP-16 package and supports operation within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 12V output capability for simplified design
• Internal frequency compensation reduces external component count
• Pulse width modulation control for efficient regulation

Voltage Regulators - DC DC Switching Regulators Applications

• General purpose step-down power supplies
• Pre-regulator circuits for linear regulators
• Battery-powered systems requiring voltage reduction

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific manufacturer source, as Microchip Technology acquired this product line from National Semiconductor. Confirm that the PDIP-16 package matches the required through-hole mounting specifications. Ensure the fixed 12V output variant aligns with the target application requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required without external feedback resistors. The PDIP-16 package suits through-hole assembly processes. Consider the 1A current limit and 40V maximum input voltage when designing the power stage. Verify thermal management needs for the chosen operating environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of simple switchers. The series offers both fixed and adjustable output versions. The LM2575-12YN specifically provides a fixed 12V output. It is designed for ease of use with minimal external components. The series is widely used in various DC-DC conversion applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575T-12/NOPB by Texas Instruments offers equivalent functionality in a TO-220-5 package. LM2575WU-12 by Microchip provides the same electrical performance in a TO-263-5 surface mount package. Verify pin compatibility and thermal characteristics when substituting.