LP3470IM5X-4.00 Equivalent & Substitute Parts

Part Overview

The LP3470IM5X-4.00 is a single-channel supervisor IC manufactured by Texas Instruments, designed for power management and reset signal generation in electronic systems. This device operates as a simple reset/power-on reset controller with an open drain output configuration and a 4V voltage threshold. The part is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing production and maintenance applications. Substitute parts must maintain functional compatibility across voltage monitoring, reset behavior, and output characteristics while accommodating differences in product status and operating specifications.

Substiute Parts

LP3470IM5X-4.00

Texas InstrumentsIn Stock: 9204LP3470IM5X-4.00 Datasheet

Current PartRFQ

LP3470A400DBVR

Texas InstrumentsIn Stock: 3525LP3470A400DBVR Datasheet

MFR RecommendedRFQ

LP3470IM5-4.00/NOPB

Texas InstrumentsIn Stock: 1419LP3470IM5-4.00/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP3470IM5X-4.00 is determined by strict alignment with the following critical parameters:

• Voltage Threshold: Must be 4V
• Number of Voltages Monitored: Must be 1 channel
• Output Configuration: Must be Open Drain or Open Collector
• Reset Logic: Must be Active Low
• Package Type: Must be SOT-23-5 (SC-74A, SOT-753)
• Mounting Type: Must be Surface Mount
• RoHS and REACH Compliance: Must maintain ROHS3 Compliant and REACH Unaffected status

The identified substitute parts are grouped into two categories based on their relationship to the main part:

1. MFR Recommended Substitute: LP3470A400DBVR — Manufacturer-endorsed alternative with active product status
2. Parametric Equivalent: LP3470IM5-4.00/NOPB — Functionally equivalent part with matching core electrical specifications

Both substitutes maintain the same voltage threshold, monitoring configuration, output type, and reset behavior as the original part. Differences exist in product status, reset timeout specifications, and operating temperature ranges, which are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

For New Designs: LP3470A400DBVR is the recommended substitute. This part carries active product status from Texas Instruments, ensuring ongoing availability, technical support, and compliance with current manufacturing standards. The extended operating temperature range (-40°C ~ 125°C) provides additional thermal margin compared to the original part. Tape & Reel packaging is standard for production environments.

For Maintenance and Repair: LP3470IM5-4.00/NOPB serves as a parametric equivalent with matching electrical specifications and reset timeout characteristics identical to the original LP3470IM5X-4.00. However, this part is classified as "Not For New Designs," indicating limited future availability. Use this substitute only when direct functional replacement is required and LP3470A400DBVR is not suitable for the application.

Compliance Considerations: All three parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for both legacy and current production environments. MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can LP3470A400DBVR be used as a direct replacement for LP3470IM5X-4.00?

A: Yes. Both parts share identical voltage threshold (4V), single-channel monitoring, open drain output, active low reset logic, and SOT-23-5 packaging. The primary difference is reset timeout specification (619ms typical vs. 1ms minimum) and extended operating temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C). Verify that the application tolerates the longer reset timeout before substitution.

Q: What is the difference between the two substitute parts?

A: LP3470A400DBVR has active product status and extended temperature range, making it suitable for new designs. LP3470IM5-4.00/NOPB matches the original part's reset timeout and temperature range but carries "Not For New Designs" status, limiting its use to maintenance applications where exact electrical equivalence is required.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the SOT-23-5 package (SC-74A, SOT-753) with identical pinout and surface mount configuration. No PCB layout modifications are required for substitution.

Q: Do these parts require different handling or storage procedures?

A: No. All three parts have MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints. Standard ESD precautions and dry storage conditions apply equally to all variants.

Q: Which substitute should be selected for a production environment?

A: LP3470A400DBVR is the appropriate choice for production. Its active product status ensures long-term availability and manufacturer support. Tape & Reel packaging is standard for automated assembly processes.