LM4140ACM-2.0 Equivalent & Substitute Parts

Part Overview

The LM4140ACM-2.0 is a Series Voltage Reference IC manufactured by Texas Instruments, designed for precision analog applications requiring a fixed 2.048V output reference. This component operates as a fixed output voltage reference with ±0.1% tolerance, suitable for Power Management (PMIC) applications in surface mount configurations.

The LM4140ACM-2.0 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for systems utilizing this reference voltage IC.

Substiute Parts

LM4140ACM-2.0

Texas InstrumentsIn Stock: 2231LM4140ACM-2.0 Datasheet

Current PartRFQ

LM4140ACM-2.0/NOPB

Texas InstrumentsIn Stock: 1444LM4140ACM-2.0/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM4140ACM-2.0 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 2.048V
• Output current capability of 8 mA
• Tolerance specification of ±0.1%
• Temperature coefficient of 3ppm/°C
• Input voltage range of 1.8V ~ 5.5V
• 8-SOIC surface mount package configuration
• Series reference type with fixed output topology

The substitute part LM4140ACM-2.0/NOPB maintains identical electrical specifications and mechanical packaging, ensuring direct functional equivalence. The primary distinction between the main part and substitute is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The LM4140ACM-2.0/NOPB is the direct functional equivalent of the LM4140ACM-2.0. All electrical and mechanical parameters are identical, ensuring pin-for-pin and functional compatibility.

The LM4140ACM-2.0/NOPB carries Active product status, providing assured long-term availability compared to the Obsolete status of the original part. Additionally, the substitute part meets ROHS3 compliance requirements, whereas the original part is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification.

For new designs or production continuity, the LM4140ACM-2.0/NOPB is the appropriate selection. The part is available in Tube packaging and maintains equivalent moisture sensitivity level (MSL 1 - Unlimited).

Frequently Asked Questions (FAQ)

Q: Can LM4140ACM-2.0/NOPB be used as a direct replacement for LM4140ACM-2.0?

A: Yes. The LM4140ACM-2.0/NOPB is electrically and mechanically identical to the LM4140ACM-2.0. All output voltage, current, tolerance, temperature coefficient, and noise specifications match exactly. The 8-SOIC package dimensions and pin configuration are identical, enabling direct substitution without circuit modification.

Q: What is the difference between LM4140ACM-2.0 and LM4140ACM-2.0/NOPB?

A: The primary differences are product status and compliance certification. The LM4140ACM-2.0 is Obsolete and RoHS non-compliant, while the LM4140ACM-2.0/NOPB is Active and ROHS3 compliant. The "/NOPB" suffix indicates lead-free (no lead) and halogen-free construction. Electrical performance and package specifications are identical.

Q: Is the 8-SOIC package compatible with existing PCB layouts?

A: Yes. Both parts use the identical 8-SOIC package with 0.154" (3.90mm) width. PCB footprints, solder pad layouts, and assembly processes require no modification.

Q: What is the output voltage tolerance for these parts?

A: Both parts maintain ±0.1% tolerance on the 2.048V fixed output voltage. This corresponds to an output range of 2.046V to 2.050V under specified operating conditions.

Q: Are there supply chain considerations for selecting between these parts?

A: The LM4140ACM-2.0/NOPB carries Active product status with current inventory availability. The LM4140ACM-2.0 is Obsolete and represents legacy inventory. For ongoing production requirements, the LM4140ACM-2.0/NOPB ensures sustained component availability and supply chain reliability.