MCP6548-E/SN Equivalent & Substitute Parts

Part Overview

The MCP6548-E/SN is a general-purpose CMOS comparator manufactured by Microchip Technology, featuring open-drain, rail-to-rail output with TTL compatibility in an 8-SOIC surface-mount package. The device operates across a 1.6V to 5.5V supply range and is designed for precision voltage comparison applications requiring low input offset voltage and minimal quiescent current. With active product status and ROHS3 compliance, the MCP6548-E/SN is suitable for new designs. Equivalent and substitute parts are identified for applications requiring alternative packaging formats, extended temperature ranges, or different supply voltage specifications.

Substiute Parts

MCP6548-E/SN

Microchip TechnologyIn Stock: 898MCP6548-E/SN Datasheet

Current PartRFQ

MCP6546-E/SN

Microchip TechnologyIn Stock: 1382MCP6546-E/SN Datasheet

Parametric EquivalentRFQ

LMV7275MF/NOPB

Texas InstrumentsIn Stock: 6988LMV7275MF/NOPB Datasheet

MFR RecommendedRFQ

LMV7275MG

Texas InstrumentsIn Stock: 79302LMV7275MG Datasheet

MFR RecommendedRFQ

LMV7275MG/NOPB

Texas InstrumentsIn Stock: 18567LMV7275MG/NOPB Datasheet

MFR RecommendedRFQ

TLV3401CD

Texas InstrumentsIn Stock: 933TLV3401CD Datasheet

MFR RecommendedRFQ

TLV3401CDBVT

Texas InstrumentsIn Stock: 2162TLV3401CDBVT Datasheet

MFR RecommendedRFQ

TLV3401ID

Texas InstrumentsIn Stock: 1272TLV3401ID Datasheet

MFR RecommendedRFQ

TLV3401IDBVT

Texas InstrumentsIn Stock: 1227TLV3401IDBVT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP6548-E/SN are categorized based on the following substitution criteria:

Parametric Equivalent (Same Electrical Performance, Same Package):

• MCP6546-E/SN: Identical electrical specifications and 8-SOIC packaging. Direct pin-compatible replacement with no design modifications required.

Manufacturer Recommended Alternatives (Different Packaging, Comparable Performance):

• LMV7275MF/NOPB, LMV7275MG, LMV7275MG/NOPB: Texas Instruments alternatives with improved input offset voltage (4mV vs 7mV) and faster propagation delay (2.1µs vs 8µs). Available in SOT-23-5 and SC-70-5 packages. Supply voltage range 1.8V ~ 5.5V. Operating temperature limited to -40°C ~ 85°C.
• TLV3401CD, TLV3401ID, TLV3401CDBVT, TLV3401IDBVT: Texas Instruments alternatives with extended supply voltage range (2.5V ~ 16V or 2.7V ~ 16V). Available in 8-SOIC and SOT-23-5 packages. Slower propagation delay (300µs). Operating temperature ranges vary (0°C ~ 70°C or -40°C ~ 125°C).

Substitution is determined by matching output type (CMOS, open-drain), supply voltage compatibility, operating temperature requirements, and package availability. Package changes require PCB layout modifications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Design Changes): Select MCP6546-E/SN when identical electrical performance and 8-SOIC packaging are required. Both parts share active product status and identical specifications.

For Improved Performance with Package Change: LMV7275MG/NOPB offers superior input offset voltage (4mV vs 7mV) and faster propagation delay (2.1µs vs 8µs) with active product status. Requires PCB redesign for SC-70-5 package. Operating temperature range limited to -40°C ~ 85°C; verify compatibility with application requirements.

For Extended Supply Voltage Range: TLV3401ID supports 2.7V ~ 16V supply range with -40°C ~ 125°C operating temperature, matching the MCP6548-E/SN temperature range. Product status is Last Time Buy; verify long-term availability. Propagation delay is significantly slower (300µs vs 8µs).

For Cost or Availability Optimization: Evaluate LMV7275MF/NOPB (SOT-23-5) or TLV3401CDBVT (SOT-23-5) based on inventory levels and supply chain requirements. All recommended alternatives carry ROHS3 compliance and REACH Unaffected status, matching the main part's regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can MCP6546-E/SN be used as a direct replacement for MCP6548-E/SN? A: Yes. MCP6546-E/SN is a parametric equivalent with identical electrical specifications, output type, supply voltage range, and 8-SOIC packaging. No design modifications are required.

Q: What are the key differences between MCP6548-E/SN and LMV7275MG/NOPB? A: LMV7275MG/NOPB offers lower input offset voltage (4mV vs 7mV) and faster propagation delay (2.1µs vs 8µs). However, the minimum supply voltage is 1.8V (vs 1.6V), and the maximum operating temperature is 85°C (vs 125°C). Package changes from 8-SOIC to SC-70-5 require PCB layout modifications.

Q: Can TLV3401ID replace MCP6548-E/SN in all applications? A: TLV3401ID supports the same -40°C ~ 125°C operating temperature range and 8-SOIC packaging. However, the minimum supply voltage is 2.7V (vs 1.6V), and propagation delay is significantly slower (300µs vs 8µs). Verify supply voltage and timing requirements before substitution. Product status is Last Time Buy.

Q: What packaging options are available for substitutes? A: Substitutes are available in three packages: 8-SOIC (MCP6546-E/SN, TLV3401CD, TLV3401ID), SOT-23-5 (LMV7275MF/NOPB, TLV3401CDBVT, TLV3401IDBVT), and SC-70-5 (LMV7275MG, LMV7275MG/NOPB). Package selection depends on PCB space constraints and design flexibility.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts carry ROHS3 compliance and REACH Unaffected status, matching the regulatory compliance of MCP6548-E/SN.

Q: Which substitute has the best long-term availability? A: MCP6546-E/SN and LMV7275MG/NOPB carry Active product status. LMV7275MG, TLV3401CD, TLV3401ID, TLV3401CDBVT, and TLV3401IDBVT are marked Last Time Buy, indicating limited future availability. Verify supply chain requirements for long-term production.