TSU101ILT Equivalent & Substitute Parts

Part Overview

The TSU101ILT is a general-purpose operational amplifier manufactured by STMicroelectronics, housed in a SOT-23-5 surface mount package. This rail-to-rail output amplifier is designed for low-power applications requiring minimal supply current and operates across a 1.5 V to 5.5 V supply range. The device is actively produced and ROHS3 compliant, making it suitable for modern electronic designs. Substitute parts are identified when equivalent functional performance, package compatibility, and electrical specifications align within acceptable operating parameters for the intended application.

Substiute Parts

TSU101ILT

STMicroelectronicsIn Stock: 104761TSU101ILT Datasheet

Current PartRFQ

LMV321Q1M5/NOPB

Texas InstrumentsIn Stock: 4163LMV321Q1M5/NOPB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSU101ILT with the LMV321Q1M5/NOPB is based on the following alignment criteria:

Package Compatibility: Both devices utilize the SOT-23-5 package (SC-74A, SOT-753 case), ensuring identical pinout and footprint compatibility on printed circuit boards.

Functional Classification: Both are single-circuit, general-purpose operational amplifiers with rail-to-rail output capability, meeting the core functional requirement.

Supply Voltage Range: The TSU101ILT operates from 1.5 V to 5.5 V, while the LMV321Q1M5/NOPB operates from 2.7 V to 5.5 V. The substitute part supports the upper portion of the original device's supply range, making it suitable for applications operating at 2.7 V or higher.

Surface Mount Technology: Both devices are surface mount components, maintaining manufacturing process compatibility.

Compliance Standards: Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and REACH unaffected status, ensuring regulatory alignment.

Product Status: Both devices maintain active production status, ensuring long-term availability.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution Applicability: The LMV321Q1M5/NOPB serves as a functional substitute for the TSU101ILT in applications where the minimum supply voltage requirement of 2.7 V is met. Both devices share identical package geometry, pinout configuration, and core operational amplifier classification.

Supply Voltage Consideration: Applications requiring operation below 2.7 V supply voltage cannot use the LMV321Q1M5/NOPB as a substitute. The TSU101ILT's lower minimum supply voltage of 1.5 V provides extended low-voltage capability not available in the substitute part.

Automotive Grade Availability: The LMV321Q1M5/NOPB carries AEC-Q100 automotive qualification and operates across an extended temperature range of -40°C to 125°C, compared to the TSU101ILT's -40°C to 85°C range. This makes the substitute part suitable for automotive and extended-temperature applications.

Compliance and Regulatory Status: Both parts maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and REACH unaffected status. Both are actively produced, ensuring supply chain continuity.

Performance Characteristics: The LMV321Q1M5/NOPB exhibits superior dynamic performance with a 1 V/µs slew rate and 1 MHz gain bandwidth product compared to the TSU101ILT's 0.003 V/µs slew rate and 9 kHz gain bandwidth product. Applications requiring higher bandwidth or faster signal response benefit from the substitute part's enhanced specifications.

Frequently Asked Questions (FAQ)

Q: Can the LMV321Q1M5/NOPB replace the TSU101ILT in all applications?

A: The LMV321Q1M5/NOPB is compatible with applications operating at supply voltages of 2.7 V or higher. Applications requiring operation below 2.7 V must use the TSU101ILT or identify an alternative substitute with lower minimum supply voltage specifications.

Q: Are the pinouts identical between these two devices?

A: Yes. Both the TSU101ILT and LMV321Q1M5/NOPB use the SOT-23-5 package (SC-74A, SOT-753 case), ensuring identical pinout and direct footprint compatibility without circuit board modifications.

Q: What is the primary performance difference between these amplifiers?

A: The LMV321Q1M5/NOPB provides significantly higher bandwidth (1 MHz versus 9 kHz) and faster slew rate (1 V/µs versus 0.003 V/µs). The TSU101ILT offers lower supply current consumption (650 nA versus 130 µA) and extended low-voltage operation (1.5 V minimum).

Q: Is the LMV321Q1M5/NOPB suitable for automotive applications?

A: Yes. The LMV321Q1M5/NOPB carries AEC-Q100 automotive qualification and operates across -40°C to 125°C, making it suitable for automotive-grade designs. The TSU101ILT does not carry automotive qualification.

Q: What is the moisture sensitivity rating for both parts?

A: Both devices carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture-related handling restrictions during storage, shipping, or assembly processes.

Q: Can these parts be used interchangeably on the same printed circuit board?

A: Yes, provided the application's supply voltage requirement is 2.7 V or higher. The identical SOT-23-5 package ensures direct footprint compatibility without board redesign.

Q: Which part should be selected for ultra-low-power applications?

A: The TSU101ILT is the appropriate choice for ultra-low-power designs, consuming only 650 nA supply current compared to the LMV321Q1M5/NOPB's 130 µA supply current.

Q: Are both parts RoHS compliant?

A: Yes. Both the TSU101ILT and LMV321Q1M5/NOPB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.