LM2575T-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575T-12/NOPB is a monolithic integrated circuit step-down switching voltage regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments. It provides a fixed 12 V output with a maximum load current of 1 A. The device operates with an input voltage range of 4 V to 40 V and features a typical switching frequency of 52 kHz. Designed for through-hole mounting in a TO-220-5 package, it supports junction temperatures from -40 °C to +125 °C. Key electrical characteristics include ±4% output voltage accuracy and internal frequency compensation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a fixed-frequency oscillator and internal frequency compensation to minimize external component requirements.
• Includes built-in thermal shutdown and per-cycle current limiting for robust fault protection.
• Offers low standby current via an external shutdown pin capability.

Voltage Regulators - DC DC Switching Regulators Applications

• Direct replacement for three-terminal linear regulators to reduce heat dissipation.
• Pre-regulator stages for downstream switching regulators.
• Efficient buck converters for battery-powered systems.

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm package type and temperature rating. Confirm RoHS compliance status as indicated by the NOPB designation. Check for obsolescence notices or lifecycle changes prior to finalizing procurement decisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 12 V output is required with up to 1 A load capacity. Ensure the input voltage does not exceed 40 V. Consider the TO-220-5 through-hole package constraints for PCB layout and thermal management requirements compared to surface-mount alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2575 series of SIMPLE SWITCHER power controllers. It serves as a high-efficiency alternative to traditional linear regulators, offering significant reductions in size and cost for DC-DC conversion applications requiring moderate power levels.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575T-12/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2575T-12/NOPB?

The maximum input voltage is 40 V.

Does the LM2575T-12/NOPB support adjustable output voltage?

No, this specific variant provides a fixed 12 V output. Adjustable versions are available under different model suffixes.