LM4132AMFX-3.0 Equivalent & Substitute Parts

Part Overview

The LM4132AMFX-3.0 is a Series Voltage Reference IC from Texas Instruments, delivering a fixed 3V output with ±0.05% tolerance and 20 mA output current in a SOT-23-5 surface mount package. This part is classified as Obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The device operates across a 3.4V to 5.5V input range with a temperature coefficient of 20ppm/°C, suitable for precision analog applications requiring stable voltage references.

Substiute Parts

LM4132AMFX-3.0

Texas InstrumentsIn Stock: 1239LM4132AMFX-3.0 Datasheet

Current PartRFQ

LM4132AMFX-3.0/NOPB

Texas InstrumentsIn Stock: 1222LM4132AMFX-3.0/NOPB Datasheet

DirectRFQ

LM4132AMF-3.0/NOPB

Texas InstrumentsIn Stock: 2356LM4132AMF-3.0/NOPB Datasheet

Parametric EquivalentRFQ

LM4132AQ1MFR3.0

Texas InstrumentsIn Stock: 734LM4132AQ1MFR3.0 Datasheet

Parametric EquivalentRFQ

LM4132AQ1MFT3.0

Texas InstrumentsIn Stock: 2280LM4132AQ1MFT3.0 Datasheet

Parametric EquivalentRFQ

MAX6037AAUK30+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1299MAX6037AAUK30+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM4132AMFX-3.0 are classified based on electrical and mechanical compatibility within the following criteria:

Direct Substitutes (Identical Electrical Parameters):

• LM4132AMFX-3.0/NOPB, LM4132AMF-3.0/NOPB, LM4132AQ1MFR3.0, and LM4132AQ1MFT3.0 maintain all critical electrical specifications: 3V fixed output, ±0.05% tolerance, 20 mA output current, 20ppm/°C temperature coefficient, and 285µVp-p noise performance. These parts differ only in packaging format (Tape & Reel) and product status (Active vs. Obsolete), with automotive-grade variants (LM4132AQ1MFR3.0, LM4132AQ1MFT3.0) offering AEC-Q100 qualification.

Parametric Equivalent (Cross-Manufacturer Alternative):

• MAX6037AAUK30+T from Analog Devices Inc./Maxim Integrated provides functional equivalence with the same 3V fixed output and SOT-23-5 package. However, this part exhibits different electrical characteristics: ±0.2% tolerance (vs. ±0.05%), 5 mA output current (vs. 20 mA), 25ppm/°C temperature coefficient (vs. 20ppm/°C), and superior noise performance (17µVp-p at 0.1Hz-10Hz vs. 285µVp-p). Input voltage range is 2.5V ~ 5.5V (vs. 3.4V ~ 5.5V), and supply current is 275µA (vs. 100µA).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance): Select LM4132AMFX-3.0/NOPB, LM4132AMF-3.0/NOPB, LM4132AQ1MFR3.0, or LM4132AQ1MFT3.0. All four parts maintain the full electrical specification set of the obsolete LM4132AMFX-3.0. LM4132AMFX-3.0/NOPB and LM4132AMF-3.0/NOPB are standard-grade industrial parts with Active product status and ROHS3 compliance. LM4132AQ1MFR3.0 and LM4132AQ1MFT3.0 are automotive-grade variants with AEC-Q100 qualification, suitable for applications requiring automotive reliability standards.

For Applications with Relaxed Tolerance Requirements: MAX6037AAUK30+T from Analog Devices Inc./Maxim Integrated is suitable when output current requirements are lower (5 mA vs. 20 mA) and tolerance specifications can accommodate ±0.2% (vs. ±0.05%). This part offers superior noise performance and a wider input voltage range (2.5V minimum vs. 3.4V). However, higher supply current consumption (275µA vs. 100µA) and increased temperature coefficient (25ppm/°C vs. 20ppm/°C) must be evaluated against circuit requirements.

Compliance Considerations: The original LM4132AMFX-3.0 is RoHS non-compliant. All active substitute parts (LM4132AMFX-3.0/NOPB, LM4132AMF-3.0/NOPB, LM4132AQ1MFR3.0, LM4132AQ1MFT3.0, and MAX6037AAUK30+T) are ROHS3 compliant, meeting current environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can LM4132AQ1MFR3.0 or LM4132AQ1MFT3.0 be used in non-automotive applications? A: Yes. These automotive-grade parts with AEC-Q100 qualification are fully compatible with standard industrial applications. They maintain identical electrical specifications to the standard-grade variants and offer enhanced reliability screening.

Q: What is the difference between LM4132AMFX-3.0/NOPB and LM4132AMF-3.0/NOPB? A: Both parts are electrically identical with Active product status and ROHS3 compliance. The difference lies in packaging format designation within the Texas Instruments product line. Both are suitable for direct substitution.

Q: Is MAX6037AAUK30+T a direct replacement for LM4132AMFX-3.0? A: MAX6037AAUK30+T is a functional equivalent with the same 3V output and SOT-23-5 package, but with different electrical characteristics. It is suitable only when the application can tolerate ±0.2% tolerance (vs. ±0.05%), 5 mA output current (vs. 20 mA), and 275µA supply current (vs. 100µA). Applications requiring the full 20 mA output current or ±0.05% tolerance must use the LM4132 variants.

Q: Are all substitute parts available in the same packaging format? A: All substitute parts use the SOT-23-5 surface mount package (SC-74A, SOT-753 case). Packaging format variations (Tape & Reel vs. Cut Tape) are available but do not affect electrical compatibility or PCB footprint.

Q: What is the impact of the temperature coefficient difference with MAX6037AAUK30+T? A: The MAX6037AAUK30+T has a 25ppm/°C temperature coefficient compared to 20ppm/°C for the LM4132 variants. Over a 100°C temperature range, this results in an additional 0.5% output voltage drift. Applications with tight temperature stability requirements should use the LM4132 series.

Q: Can I use LM4132AMF-3.0/NOPB in place of the obsolete LM4132AMFX-3.0? A: Yes. LM4132AMF-3.0/NOPB is the recommended direct substitute with identical electrical specifications, Active product status, and ROHS3 compliance. It is available in higher inventory quantities (2256 Pcs) compared to other variants.