LM2574N-012 Equivalent & Substitute Parts

Part Overview

The LM2574N-012 is a Buck, Boost, Buck-Boost Switching Regulator IC manufactured by onsemi, designed for fixed 12V output applications with 500mA current capability. This device operates across a wide input voltage range of 4.75V to 40V and supports positive or negative output configurations in a through-hole 8-DIP package.

The LM2574N-012 is classified as obsolete. Identifying suitable substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

LM2574N-012

onsemiIn Stock: 787LM2574N-012 Datasheet

Current PartRFQ

LM2574N-12G

onsemiIn Stock: 1379LM2574N-12G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM2574N-012 are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

• Topology: Buck, Boost, Buck-Boost
• Output Configuration: Positive or Negative
• Output Type: Fixed
• Fixed Output Voltage: 12V
• Output Current: 500mA
• Input Voltage Range: 4.75V to 40V minimum
• Switching Frequency: 52kHz
• Package / Case: 8-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole

The LM2574N-12G meets all electrical and mechanical requirements for direct substitution. Both devices share identical functional specifications, output characteristics, and physical packaging, enabling pin-for-pin replacement in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The LM2574N-12G is the direct substitute for the LM2574N-012. Both devices are manufactured by onsemi and share identical electrical specifications and physical packaging.

Key Differentiators:

The LM2574N-12G carries Active product status, ensuring ongoing manufacturer support and availability. The LM2574N-012 is classified as Obsolete, making the LM2574N-12G the appropriate choice for new designs and ongoing production requirements.

The LM2574N-12G is ROHS3 Compliant, meeting current environmental and regulatory standards. The LM2574N-012 is RoHS non-compliant, which may present compliance challenges in regulated markets and applications subject to environmental directives.

For applications requiring regulatory compliance or long-term supply chain stability, the LM2574N-12G is the recommended selection. The substitute part maintains full electrical and mechanical compatibility while providing improved product lifecycle status and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the LM2574N-12G replace the LM2574N-012 in existing designs?

A: Yes. The LM2574N-12G is a direct pin-for-pin substitute. All electrical parameters, output specifications, input voltage range, switching frequency, and physical packaging are identical. No circuit modifications are required.

Q: What is the difference between LM2574N-012 and LM2574N-12G?

A: Both devices are manufactured by onsemi and share identical functional specifications. The primary differences are product status (Obsolete vs. Active) and RoHS compliance (non-compliant vs. ROHS3 Compliant). The LM2574N-12G is the current production variant.

Q: Are there any package or mounting differences?

A: No. Both parts use the 8-DIP (0.300", 7.62mm) through-hole package. Physical dimensions, pin configuration, and mounting requirements are identical.

Q: Does the LM2574N-12G meet RoHS requirements?

A: Yes. The LM2574N-12G is ROHS3 Compliant. The LM2574N-012 is RoHS non-compliant. For applications subject to RoHS directives or environmental regulations, the LM2574N-12G is the appropriate choice.

Q: What is the switching frequency of these devices?

A: Both the LM2574N-012 and LM2574N-12G operate at a fixed switching frequency of 52kHz.

Q: Can these devices operate in buck, boost, and buck-boost configurations?

A: Yes. Both devices support all three topologies: Buck (step-down), Boost (step-up), and Buck-Boost (step-up/step-down) configurations. Output can be configured as positive or negative.