LM2574N-012

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574N-012 is a step-down switching regulator from the LM2574 series manufactured by onsemi. It provides a fixed 12V output with a maximum current of 500 mA. The device supports an input voltage range up to 40 V and operates within a temperature range of -40 °C to 125 °C. It utilizes a standard PDIP-8 package for through-hole installation. The regulator features a 52 kHz internal oscillator, thermal shutdown, and current limit protection, requiring minimal external components for operation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated thermal shutdown and current limit protection
• Fixed 52 kHz internal oscillator frequency
• Requires only four external components
• Shutdown capability for low power standby mode

Voltage Regulators - DC DC Switching Regulators Applications

• Simple high-efficiency step-down (buck) regulators
• Efficient pre-regulators for linear regulators
• On-card switching regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official onsemi documentation to confirm pinout compatibility and exact electrical tolerances. Ensure the procurement channel sources genuine components to avoid counterfeit parts. Confirm RoHS compliance status if required for the target assembly. Cross-reference the ordering number with the manufacturer's latest datasheet revision to ensure availability and correct specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from a higher input voltage source. It is suitable for applications needing up to 500 mA load current. Consider the PDIP-8 package for prototyping or through-hole designs. Evaluate the 52 kHz switching frequency against EMI requirements. Compare against adjustable versions if variable output voltage is needed instead.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM2574N-012 belongs to the LM2574 family of SIMPLE SWITCHER power converters. This series is designed for ease of use in DC-DC conversion tasks. The 'N' indicates a through-hole package, while the suffix specifies the fixed output voltage. It competes with other buck regulators offering similar current capabilities and integrated protection features.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2574N-12/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What is the typical efficiency of the LM2574N-012?

The datasheet indicates high efficiency, typically around 77% under standard operating conditions.

Does the LM2574N-012 support negative output voltages?

No, the LM2574N-012 is a positive step-down regulator. Negative outputs require different topologies or adjustable variants configured accordingly.