LM2575N-15/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575N-15/NOPB is a monolithic integrated circuit step-down switching voltage regulator from the Texas Instruments SIMPLE SWITCHER family. It operates with an input voltage range of 4V to 40V and provides a fixed 15V output at up to 1A load current. The device utilizes a buck topology with a typical switching frequency of 52kHz. It features internal frequency compensation, a 3.3V reference, and supports external shutdown. The component is housed in a TO-220-5 through-hole package and is rated for operation between -40°C and +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck converter topology with built-in oscillator and frequency compensation
• Fixed 15V output with ±4% accuracy under specified conditions
• Internal thermal shutdown and per-cycle current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

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

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'N' indicates the TO-220-5 through-hole package variant. Confirm the 'NOPB' designation ensures compliance with RoHS standards and absence of lead-based materials. Cross-reference the manufacturer datasheet to ensure the part number matches the required fixed 15V output specification before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15V output is required from an input voltage up to 40V. It is suitable for applications needing 1A continuous current with minimal external components. Consider the TO-220-5 package for through-hole mounting requirements and verify thermal management needs based on the expected voltage drop and load current.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of SIMPLE SWITCHER regulators, designed as high-efficiency replacements for traditional three-terminal linear regulators. The series offers various fixed voltage options and adjustable versions, simplifying switch-mode power supply design with reduced heat sink requirements compared to linear alternatives.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575T-15/NOPB (TO-220-5 Through-Hole)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2575N-15/NOPB?

The maximum input voltage is 40V.

Does the LM2575N-15/NOPB support external shutdown?

Yes, the device includes an external shutdown feature that reduces quiescent current significantly.