LM2830ZMF Buck Switching Regulator IC Equivalent & Substitute Parts

Part Overview

The LM2830ZMF is a buck switching regulator IC designed for positive adjustable output applications. This device delivers 1A output current with an adjustable output voltage range from 0.6V to 4.5V, operating from a 3V to 5.5V input supply. The regulator operates at a 3MHz switching frequency and is housed in a compact SC-74A/SOT-753 surface mount package.

The LM2830ZMF is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently using this regulator.

Substiute Parts

LM2830ZMF

Texas InstrumentsIn Stock: 1329LM2830ZMF Datasheet

Current PartRFQ

LM2830ZMF/NOPB

National SemiconductorIn Stock: 3059LM2830ZMF/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2830ZMF is determined by strict equivalence across the following critical parameters:

• Topology & Function: Buck (step-down) topology with positive adjustable output
• Electrical Specifications: Input voltage range 3V–5.5V, output voltage range 0.6V–4.5V, 1A output current capability
• Switching Frequency: 3MHz operation
• Thermal Performance: Operating temperature range -40°C to 125°C (junction temperature)
• Package Compatibility: SC-74A/SOT-753 surface mount package (SOT-23-5 supplier designation)
• Rectifier Configuration: Non-synchronous design

The LM2830ZMF/NOPB qualifies as a direct substitute based on identical electrical and mechanical specifications across all parameters listed above.

Parameter Comparison

Engineering Selection Recommendations

The LM2830ZMF/NOPB is a direct functional and electrical equivalent to the obsolete LM2830ZMF. Both devices share identical electrical specifications, thermal operating range, and package configuration. The primary distinction is product status: the LM2830ZMF/NOPB maintains active production status, ensuring ongoing availability and supply chain support.

Both parts comply with identical export control classifications (ECCN: EAR99) and tariff codes (HTSUS: 8542.39.0001). The LM2830ZMF/NOPB is suitable for new designs and replacement applications requiring the LM2830ZMF electrical and mechanical interface.

Frequently Asked Questions (FAQ)

Q: Can the LM2830ZMF/NOPB replace the LM2830ZMF in existing designs?

A: Yes. The LM2830ZMF/NOPB is electrically and mechanically identical to the LM2830ZMF across all specified parameters, including input/output voltage ranges, output current, switching frequency, operating temperature, and package configuration.

Q: What is the difference between LM2830ZMF and LM2830ZMF/NOPB?

A: The primary difference is product status and packaging designation. The LM2830ZMF is obsolete, while the LM2830ZMF/NOPB is active production. The "/NOPB" suffix indicates lead-free (Pb-free) packaging. Both devices are functionally equivalent.

Q: Are there any compliance or certification differences?

A: No. Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. RoHS and REACH compliance status should be verified with the current manufacturer datasheet.

Q: Is the SOT-23-5 package compatible with SC-74A/SOT-753 footprints?

A: Yes. SOT-23-5 is the supplier device package designation for the SC-74A/SOT-753 physical package. Pin configuration and footprint are identical.

Q: What is the output voltage adjustment range?

A: The adjustable output voltage range is 0.6V to 4.5V, set by external resistor divider networks on the feedback pin.