LM2575N-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575N-12/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, operating with an input voltage range of 4V to 40V. It provides a fixed 12V output at up to 1A load current. The device integrates a 52kHz switching frequency and includes internal compensation for minimal external component requirements. Key features include a 10mA typical quiescent current, thermal shutdown protection, and a specified operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck topology simplifies design by requiring few external components
• Built-in thermal shutdown protects the device during overload conditions
• Fixed 12V output eliminates the need for external feedback resistors

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for digital logic circuits
• Pre-regulation for downstream switching regulators
• Battery-powered systems requiring efficient voltage step-down

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the package designation carefully, as 'N' typically indicates a DIP or through-hole variant in TI nomenclature, whereas 'T' denotes TO-220 and 'S' denotes TO-263. Confirm the suffix '/NOPB' ensures lead-free and RoHS compliance. Cross-reference the specific datasheet revision to ensure pinout compatibility with existing board layouts.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 12V output is required from a 40V maximum input source. It is suitable for applications prioritizing design simplicity over ultra-high efficiency. Ensure the thermal management strategy accounts for the power dissipation at the expected load current and ambient temperature.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2575 family of monolithic integrated step-down converters. The family offers a balance of ease of use and flexibility for various power supply designs. The LM2575 series is widely recognized for its robust performance in industrial and commercial applications requiring reliable DC-DC conversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575T-12/NOPB (TO-220 package)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for this regulator?

The maximum input voltage is 40V.

Does this device support adjustable output voltages?

No, the LM2575N-12/NOPB provides a fixed 12V output. Adjustable versions are available with the '-ADJ' suffix.