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TSV6291ILT Equivalent & Substitute Parts
Part Overview
The TSV6291ILT is a general-purpose operational amplifier manufactured by STMicroelectronics, housed in a SOT-23-5 surface mount package. This rail-to-rail output amplifier operates across a supply voltage range of 1.5 V to 5.5 V and is designed for low-power applications requiring single-circuit amplification. The device is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity rating.
Substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers offer equivalent electrical performance, or when design requirements necessitate different packaging or performance characteristics within the same functional category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 1 | — |
| Output Type | Rail-to-Rail | — |
| Slew Rate | 0.5 | V/µs |
| Gain Bandwidth Product | 1.3 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 6 | mV |
| Current - Supply | 30 | µA |
| Current - Output / Channel | 74 | mA |
| Voltage - Supply Span (Min) | 1.5 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| Mounting Type | Surface Mount | — |
| Package / Case | SC-74A, SOT-753 | — |
| Supplier Device Package | SOT-23-5 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
| Product Status | Active | — |
Substitute Part Grouping Explanation
Substitution compatibility for the TSV6291ILT is determined by the following critical parameters:
Primary Substitution Criteria:
- Amplifier Type: General Purpose
- Number of Circuits: 1
- Output Type: Rail-to-Rail
- Voltage Supply Span: Minimum 1.5 V, Maximum 5.5 V
- Operating Temperature Range: -40°C to 125°C (or compatible subset)
- Mounting Type: Surface Mount
- Package compatibility: SOT-23-5 or equivalent footprint
Secondary Performance Parameters:
- Slew Rate: 0.5 V/µs or greater
- Gain Bandwidth Product: 1.3 MHz or greater
- Current - Input Bias: 1 pA or lower
- Voltage - Input Offset: 6 mV or lower
- Current - Supply: 30 µA or lower
- Current - Output / Channel: 74 mA or greater
Substitute parts must maintain rail-to-rail output capability and surface mount configuration. Parts with identical or superior electrical characteristics within the specified voltage and temperature ranges are considered functionally equivalent.
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (pA) | Input Offset (mV) | Supply Current (µA) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package | Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TSV6291ILT | STMicroelectronics | General Purpose | 0.5 | 1.3 | 1 | 6 | 30 | 74 | 1.5 | 5.5 | -40 to 125 | SOT-23-5 | Active |
| APX321WG-7 | Diodes Incorporated | General Purpose | 1 | 1 | 15 | 1.7 | 110 | 90 | 2.5 | 5.5 | -40 to 85 | SOT-25 | Active |
| AZV321KTR-G1 | Diodes Incorporated | General Purpose | 1 | 1 | 250 | 1.7 | 130 | 160 | 2.7 | 5.5 | -40 to 85 | SOT-23-5 | Active |
| BU7241G-TR | Rohm Semiconductor | General Purpose | 0.4 | 0.9 | 1 | 1 | 70 | 12 | 1.8 | 5.5 | -40 to 85 | 5-SSOP | Active |
| LMV321IDBVR | UMW | Voltage Feedback | — | 1 | 10 | 0.8 | 45 | 25 | 2.1 | 5.5 | -25 to 85 | SOT-23-5 | Active |
| LMV321IDBVT | Texas Instruments | General Purpose | 1 | 1 | 15 | 1.7 | 130 | — | 2.7 | 5.5 | -40 to 125 | SOT-23-5 | Active |
| LMV321M5 | Texas Instruments | General Purpose | 1 | 1 | 15 | 1.7 | 130 | 160 | 2.7 | 5.5 | -40 to 85 | SOT-23-5 | Obsolete |
| LMV321M5/NOPB | Texas Instruments | General Purpose | 1 | 1 | 15 | 1.7 | 130 | 160 | 2.7 | 5.5 | -40 to 85 | SOT-23-5 | Active |
| LMV321M5X/NOPB | Texas Instruments | General Purpose | 1 | 1 | 15 | 1.7 | 130 | — | 2.7 | 5.5 | -40 to 85 | SOT-23-5 | Active |
| LMV321Q1M5/NOPB | Texas Instruments | General Purpose | 1 | 1 | 15 | 1.7 | 130 | — | 2.7 | 5.5 | -40 to 125 | SOT-23-5 | Active |
| LMV321Q1M5X/NOPB | Texas Instruments | General Purpose | 1 | 1 | 15 | 1.7 | 130 | — | 2.7 | 5.5 | -40 to 125 | SOT-23-5 | Active |
Engineering Selection Recommendations
Tier 1 - Direct Substitutes (Highest Compatibility):
LMV321IDBVT and LMV321Q1M5/NOPB are the primary substitutes for the TSV6291ILT. Both devices maintain the full operating temperature range of -40°C to 125°C, SOT-23-5 packaging, and Active product status. LMV321IDBVT is manufactured by Texas Instruments with ROHS3 compliance. LMV321Q1M5/NOPB includes automotive-grade qualification (AEC-Q100) and is suitable for applications requiring automotive reliability standards.
Tier 2 - Compatible Substitutes (Functional Equivalence):
LMV321M5/NOPB and LMV321M5X/NOPB are functionally equivalent in SOT-23-5 packaging with Active status and ROHS3 compliance. These devices operate at -40°C to 85°C, which represents a reduced upper temperature limit compared to the TSV6291ILT. Both are suitable for applications not requiring the extended 125°C maximum operating temperature.
AZV321KTR-G1 (Diodes Incorporated) provides SOT-23-5 packaging and Active status with ROHS3 compliance. This device operates at -40°C to 85°C and exhibits higher input bias current (250 pA) and supply current (130 µA) compared to the main part.
Tier 3 - Package Variant Substitutes:
APX321WG-7 (Diodes Incorporated) offers equivalent electrical performance in SOT-25 packaging. This device is Active and ROHS3 compliant but operates at -40°C to 85°C. The SOT-25 package differs from the SOT-23-5 footprint and requires PCB layout modification.
Not Recommended:
BU7241G-TR exhibits slew rate (0.4 V/µs) and gain bandwidth product (0.9 MHz) below the TSV6291ILT specifications and is packaged in 5-SSOP format, requiring different PCB footprint accommodation.
LMV321IDBVR (UMW) is classified as Voltage Feedback amplifier type rather than General Purpose and operates at reduced temperature range (-25°C to 85°C), limiting suitability for extended temperature applications.
LMV321M5 is marked as Obsolete and carries RoHS non-compliance status with REACH Affected designation, making it unsuitable for new designs.
Frequently Asked Questions (FAQ)
Q: Can I use LMV321IDBVT as a direct replacement for TSV6291ILT?
A: LMV321IDBVT is compatible for applications operating within -40°C to 125°C. Both devices share SOT-23-5 packaging, rail-to-rail output, and Active product status with ROHS3 compliance. Electrical performance is equivalent within specified operating ranges.
Q: What is the difference between LMV321M5/NOPB and LMV321Q1M5/NOPB?
A: LMV321Q1M5/NOPB includes automotive-grade qualification (AEC-Q100) and maintains the full -40°C to 125°C operating temperature range. LMV321M5/NOPB operates at -40°C to 85°C without automotive qualification. Both share identical electrical specifications and SOT-23-5 packaging.
Q: Why is APX321WG-7 listed as a substitute if it uses SOT-25 packaging?
A: APX321WG-7 provides functional electrical equivalence as a general-purpose rail-to-rail amplifier with Active status and ROHS3 compliance. However, the SOT-25 package differs from SOT-23-5, requiring PCB layout modification. This substitute is applicable only when package footprint change is acceptable.
Q: Can I use BU7241G-TR in place of TSV6291ILT?
A: BU7241G-TR does not meet the minimum performance specifications for the TSV6291ILT. The slew rate (0.4 V/µs) and gain bandwidth product (0.9 MHz) fall below the required 0.5 V/µs and 1.3 MHz respectively. Additionally, the 5-SSOP package requires different PCB accommodation.
Q: What is the significance of the Moisture Sensitivity Level (MSL) rating?
A: TSV6291ILT carries MSL 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling. Most substitute parts maintain this rating, except APX321WG-7 and AZV321KTR-G1, which carry MSL 3 (168 Hours), requiring controlled storage conditions and limiting shelf life to 168 hours after moisture exposure.
Q: Are all substitute parts ROHS3 compliant?
A: All listed substitute parts are ROHS3 compliant except LMV321M5, which is marked as RoHS non-compliant and is therefore not recommended for new designs.
Q: Which substitute offers the widest operating temperature range?
A: LMV321IDBVT, LMV321Q1M5/NOPB, and LMV321Q1M5X/NOPB all maintain the full -40°C to 125°C operating temperature range matching the TSV6291ILT. All other substitutes operate at reduced maximum temperature of 85°C.
Q: What is the inventory availability consideration for substitution?
A: TSV6291ILT has 29,400 units in stock. Among substitutes, LMV321IDBVR (UMW) offers the highest inventory at 425,200 units, followed by LMV321M5X/NOPB (65,100 units) and AZV321KTR-G1 (35,400 units). Inventory levels should be evaluated against project lead time requirements.
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