TLV4379IPWR Equivalent & Substitute Parts

Part Overview

The TLV4379IPWR is a general purpose operational amplifier manufactured by Texas Instruments, housed in a 14-TSSOP surface mount package. This single-circuit rail-to-rail amplifier operates across a supply voltage range of 1.8V to 5.5V and is designed for applications requiring low power consumption and compact form factors. The device is currently in active production status with RoHS3 compliance and REACH unaffected classification. Substitute parts are identified when equivalent functional performance can be achieved within the specified electrical and mechanical parameters while maintaining package compatibility and operating specifications.

Substiute Parts

TLV4379IPWR

Texas InstrumentsIn Stock: 25363TLV4379IPWR Datasheet

Current PartRFQ

MCP6144-E/ST

Microchip TechnologyIn Stock: 1231MCP6144-E/ST Datasheet

MFR RecommendedRFQ

MCP6144-I/ST

Microchip TechnologyIn Stock: 7006MCP6144-I/ST Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLV4379IPWR are identified based on the following substitution criteria:

Package Compatibility: All substitute parts must use the 14-TSSOP surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Functional Classification: Substitute parts must be general purpose operational amplifiers with rail-to-rail output capability.

Supply Voltage Range: Substitute parts must operate within or encompass the TLV4379IPWR supply voltage range of 1.8V to 5.5V.

Operating Temperature Range: Substitute parts must support the full or equivalent operating temperature range of -40°C to 125°C.

Compliance Standards: Substitute parts must maintain RoHS3 compliance and REACH unaffected status.

The identified substitute parts (MCP6144-E/ST and MCP6144-I/ST) meet these criteria. However, the MCP6144 series contains four amplifier circuits per package compared to the single circuit in the TLV4379IPWR. This difference in circuit count requires design consideration for applications where only one amplifier is needed.

Parameter Comparison

Engineering Selection Recommendations

MCP6144-E/ST: This substitute part is suitable for applications requiring extended temperature operation to 125°C. The MCP6144-E/ST maintains active product status and RoHS3 compliance. The extended operating temperature range aligns with the TLV4379IPWR specification. The four-circuit configuration provides additional amplifier stages within the same package footprint. Moisture sensitivity level MSL 1 (Unlimited) offers superior reliability compared to the TLV4379IPWR MSL 2 specification.

MCP6144-I/ST: This substitute part operates within a reduced temperature range (-40°C to 85°C), which does not encompass the full upper temperature specification of the TLV4379IPWR. Selection of this part is appropriate only for applications with maximum operating temperatures not exceeding 85°C. The MCP6144-I/ST maintains active product status, RoHS3 compliance, and MSL 1 moisture sensitivity rating. Higher inventory availability (6900 units) compared to MCP6144-E/ST (1132 units) may support supply chain requirements.

Both substitute parts are active products with current manufacturing support and full compliance certifications. Package compatibility is maintained across all three parts in the 14-TSSOP form factor.

Frequently Asked Questions (FAQ)

Q: Can the MCP6144-E/ST or MCP6144-I/ST be used as direct pin-for-pin replacements for the TLV4379IPWR?

A: The MCP6144 series devices use the same 14-TSSOP package as the TLV4379IPWR, ensuring mechanical compatibility. However, the MCP6144 contains four amplifier circuits compared to the single circuit in the TLV4379IPWR. Pin assignments differ between these devices. Schematic and PCB layout verification is required before substitution.

Q: What is the primary difference between MCP6144-E/ST and MCP6144-I/ST?

A: The operating temperature range differs between these two parts. The MCP6144-E/ST operates from -40°C to 125°C, matching the TLV4379IPWR full temperature specification. The MCP6144-I/ST operates from -40°C to 85°C, with a reduced upper temperature limit. Selection depends on the application's maximum operating temperature requirement.

Q: Why do the MCP6144 substitutes have four circuits while the TLV4379IPWR has only one?

A: The MCP6144 is a quad operational amplifier design, providing four independent amplifier circuits within a single 14-TSSOP package. The TLV4379IPWR is a single-channel device. Both devices share the same package footprint but differ in internal circuit configuration. Applications requiring only one amplifier may leave unused circuits unpowered or unconnected.

Q: Are there any electrical parameter differences that affect substitution suitability?

A: Yes. The MCP6144 series exhibits higher input offset voltage (3 mV versus 800 µV) and lower input bias current (1 pA versus 5 pA) compared to the TLV4379IPWR. The gain bandwidth product is slightly higher in the MCP6144 (100 kHz versus 90 kHz). Applications with precision offset requirements or specific bandwidth constraints must evaluate these differences.

Q: What is the significance of the moisture sensitivity level difference?

A: The TLV4379IPWR has MSL 2 (1 Year), while both MCP6144 variants have MSL 1 (Unlimited). MSL rating indicates the maximum time a component can be exposed to moisture before soldering. MSL 1 (Unlimited) provides superior shelf life and storage flexibility compared to MSL 2 (1 Year), reducing risk of moisture-induced failures during manufacturing.

Q: Do all three parts maintain the same compliance certifications?

A: Yes. The TLV4379IPWR, MCP6144-E/ST, and MCP6144-I/ST are all RoHS3 compliant and REACH unaffected. All three parts carry ECCN EAR99 and HTSUS 8542.33.0001 classifications, ensuring consistent regulatory and export compliance across substitution options.