LP3470IM5X-2.93 Equivalent & Substitute Parts

Part Overview

The LP3470IM5X-2.93 is a supervisor integrated circuit from Texas Instruments designed for power management applications. It functions as a simple reset/power-on reset device with open drain or open collector output, monitoring a single voltage threshold at 2.93V. The device is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design considerations.

Substiute Parts

LP3470IM5X-2.93

Texas InstrumentsIn Stock: 7064LP3470IM5X-2.93 Datasheet

Current PartRFQ

LP3470IM5-2.93/NOPB

Texas InstrumentsIn Stock: 1221LP3470IM5-2.93/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP3470IM5X-2.93 is determined by the following critical parameters:

• Voltage Threshold: 2.93V (exact match required)
• Output Type: Open Drain or Open Collector configuration
• Reset Logic: Active Low operation
• Reset Timeout: 1ms Minimum
• Package Compatibility: SOT-23-5 (SC-74A, SOT-753)
• Thermal Range: -40°C ~ 85°C (TJ)
• Functional Type: Simple Reset/Power-On Reset supervisor

The identified substitute part LP3470IM5-2.93/NOPB matches all critical electrical and mechanical parameters, differing only in packaging format (Tape & Reel versus bulk) and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The LP3470IM5-2.93/NOPB serves as the direct parametric equivalent for the obsolete LP3470IM5X-2.93. Both parts share identical electrical specifications, thermal characteristics, and package geometry. The primary distinction lies in product lifecycle status and regulatory compliance.

The LP3470IM5-2.93/NOPB carries "Not For New Designs" status, indicating limited availability and no active manufacturer support for new applications. However, it remains suitable for legacy system maintenance and replacement applications where the 2.93V threshold and active-low reset configuration are required.

The LP3470IM5-2.93/NOPB achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. This distinction is relevant for applications subject to environmental regulations or customer specifications requiring RoHS certification.

Both parts maintain identical moisture sensitivity levels (MSL 1, Unlimited) and REACH status, ensuring equivalent handling and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can LP3470IM5-2.93/NOPB be used as a direct replacement for LP3470IM5X-2.93?

A: Yes. Both parts are electrically and mechanically identical. They share the same voltage threshold (2.93V), output configuration (open drain/open collector), reset logic (active low), and SOT-23-5 package. The difference is packaging format and product lifecycle status.

Q: What is the significance of the "/NOPB" suffix in LP3470IM5-2.93/NOPB?

A: The "/NOPB" designation indicates the part is supplied in Tape & Reel packaging format without plating on the leads. This is a standard Texas Instruments packaging notation and does not affect electrical performance or compatibility.

Q: Why is the original part marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support. The LP3470IM5-2.93/NOPB, marked "Not For New Designs," represents the final available variant before complete discontinuation.

Q: Are there differences in thermal performance between these parts?

A: No. Both parts operate across the identical temperature range of -40°C to 85°C (junction temperature). Thermal characteristics are equivalent.

Q: Does the RoHS compliance difference affect substitution?

A: The LP3470IM5-2.93/NOPB achieves ROHS3 compliance while the original is non-compliant. For applications requiring RoHS certification or customer specifications mandating RoHS compliance, the substitute part is preferable. For legacy systems without such requirements, both parts are functionally equivalent.

Q: What are the package dimensions and pin configuration?

A: Both parts use the SC-74A/SOT-753 package format, which is the SOT-23-5 industry standard. Pin configuration and physical dimensions are identical between the two parts.