LMP7701MFX Equivalent & Substitute Parts

Part Overview

The LMP7701MFX is a general-purpose operational amplifier manufactured by Texas Instruments, housed in a SOT-23-5 surface mount package. This rail-to-rail output amplifier is designed for low-power applications requiring single-circuit amplification across a 2.7 V to 12 V supply range. The LMP7701MFX carries a Last Time Buy product status, indicating discontinued production. Identifying qualified substitute components is essential for design continuity and procurement planning.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Package / Case	SC-74A, SOT-753	—
Supplier Device Package	SOT-23-5	—
Mounting Type	Surface Mount	—
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	12	V
Operating Temperature	-40 to 125	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the LMP7701MFX is determined by the following mandatory parameters:

Package Compatibility: SOT-23-5 (SC-74A, SOT-753) surface mount package
Functional Classification: General-purpose operational amplifier with single circuit
Output Configuration: Rail-to-rail output capability
Supply Voltage Range: Minimum 2.7 V, maximum 12 V
Operating Temperature Range: -40°C to 125°C (or subset thereof)
Mounting Technology: Surface mount
Regulatory Compliance: ROHS3 compliant, MSL 1

All substitute parts listed below meet these core compatibility criteria. Differences in secondary performance parameters (slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current) do not disqualify substitution but must be evaluated against specific application requirements.

Parameter Comparison

Part Number	Manufacturer	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Current (µA)	Output Current (mA)	Temp Range (°C)	Product Status
LMP7701MFX	Texas Instruments	1.1	2.5	0.2	37	790	86	-40 to 125	Last Time Buy
LMP7701MFX/NOPB	Texas Instruments	1.1	2.5	0.2	37	790	86	-40 to 125	Active
TS951ILT	STMicroelectronics	1.0	3.0	35	6000	950	10	-40 to 125	Active
TS9511ILT	STMicroelectronics	1.0	3.0	30	800	950	20	-40 to 125	Active
TS951IYLT	STMicroelectronics	1.0	3.0	35	6000	950	10	-40 to 125	Active
LMC7101AYM5-TR	Microchip Technology	0.3	0.5	1	110	800	300	-40 to 85	Active
LMC7101BYM5-TR	Microchip Technology	0.3	0.5	1	110	800	300	-40 to 85	Active
MIC7300YM5-TR	Microchip Technology	0.5	0.37	0.5	1000	1500	115	-40 to 85	Active

Engineering Selection Recommendations

Direct Replacement (Identical Specifications)

LMP7701MFX/NOPB is the active production variant of the LMP7701MFX. This part carries identical electrical specifications and operating temperature range (-40°C to 125°C). The primary difference is product status: LMP7701MFX/NOPB is Active, whereas LMP7701MFX is Last Time Buy. For new designs or long-term procurement, LMP7701MFX/NOPB is the recommended direct replacement.

STMicroelectronics TS951 Series (TS951ILT, TS9511ILT, TS951IYLT)

The TS951 series maintains full operating temperature range (-40°C to 125°C) and supply voltage compatibility (2.7 V to 12 V). All three variants are Active products. TS951IYLT includes automotive-grade qualification (AEC-Q100), suitable for automotive applications. Performance differences include higher gain bandwidth product (3 MHz vs. 2.5 MHz) and comparable slew rate (1.0 V/µs vs. 1.1 V/µs). Output current capability is reduced (10–20 mA vs. 86 mA). These parts are suitable for applications where reduced output current is acceptable and higher bandwidth is beneficial.

Microchip Technology LMC7101 Series (LMC7101AYM5-TR, LMC7101BYM5-TR)

Both LMC7101 variants operate within the 2.7 V to 12 V supply range but have a reduced operating temperature range (-40°C to 85°C). Gain bandwidth product is significantly lower (500 kHz vs. 2.5 MHz), and slew rate is reduced (0.3 V/µs vs. 1.1 V/µs). Output current capability is higher (300 mA vs. 86 mA). These parts are suitable for low-frequency applications where extended temperature operation above 85°C is not required.

Microchip Technology MIC7300YM5-TR

The MIC7300YM5-TR operates within a reduced supply voltage range (2.2 V to 10 V minimum vs. 2.7 V) and reduced operating temperature range (-40°C to 85°C). Gain bandwidth product is lower (370 kHz), and supply current is significantly higher (1.5 mA vs. 790 µA). This part is suitable for low-voltage, low-frequency applications where higher supply current is acceptable.

All substitute parts maintain ROHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can I use LMP7701MFX/NOPB as a direct replacement for LMP7701MFX?

A: Yes. LMP7701MFX/NOPB is electrically and mechanically identical to LMP7701MFX. The only difference is product status: LMP7701MFX/NOPB is Active production, while LMP7701MFX is Last Time Buy. For new designs, LMP7701MFX/NOPB is the recommended choice.

Q: What is the key difference between TS951ILT and TS9511ILT?

A: Both parts share identical package, supply voltage range, and operating temperature range. TS9511ILT has lower input bias current (30 nA vs. 35 nA) and lower input offset voltage (800 µV vs. 6 mV). TS951ILT has higher output current capability (10 mA vs. 20 mA). Selection depends on application sensitivity to input offset voltage and required output current.

Q: Why does TS951IYLT have "Automotive" designation?

A: TS951IYLT carries AEC-Q100 qualification, indicating compliance with automotive industry reliability and testing standards. This variant is suitable for automotive applications requiring qualified components. TS951ILT and TS9511ILT are industrial-grade equivalents without automotive qualification.

Q: Can I use LMC7101 series in applications requiring operation above 85°C?

A: No. LMC7101AYM5-TR and LMC7101BYM5-TR are specified for -40°C to 85°C operation only. The LMP7701MFX operates to 125°C. For applications requiring extended temperature operation, use LMP7701MFX/NOPB or TS951 series variants.

Q: What is the impact of lower gain bandwidth product in Microchip substitutes?

A: Lower gain bandwidth product (500 kHz for LMC7101, 370 kHz for MIC7300 vs. 2.5 MHz for LMP7701MFX) limits frequency response. These parts are suitable for DC and low-frequency applications. High-frequency signal processing applications require parts with higher gain bandwidth product, such as TS951 series (3 MHz).

Q: Are all substitute parts available in SOT-23-5 package?

A: Yes. All listed substitute parts are packaged in SOT-23-5 (SC-74A, SOT-753) surface mount configuration, ensuring mechanical and electrical pin compatibility with LMP7701MFX.

Q: Do all substitutes support the full 2.7 V to 12 V supply range?

A: No. MIC7300YM5-TR has a minimum supply voltage of 2.2 V (vs. 2.7 V) and maximum of 10 V (vs. 12 V). LMC7101 series supports 2.7 V to 12 V. Verify supply voltage requirements before selection.

Q: What is the significance of MSL 1 rating?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture bake-out requirements. All listed parts carry MSL 1, ensuring consistent handling and storage procedures.

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