LP3470IM5X-4.63/NOPB Equivalent & Substitute Parts

Part Overview

The LP3470IM5X-4.63/NOPB is a single-channel power supply supervisor IC manufactured by Texas Instruments, designed for power-on reset and voltage monitoring applications. This device features an open drain or open collector output with active low reset functionality and a fixed 4.63V threshold. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent or substitute parts is necessary for ongoing production support, legacy system maintenance, and design continuity where this specific threshold voltage is required.

Substiute Parts

LP3470IM5X-4.63/NOPB

Texas InstrumentsIn Stock: 910LP3470IM5X-4.63/NOPB Datasheet

Current PartRFQ

TPS389001DSER

Texas InstrumentsIn Stock: 131480TPS389001DSER Datasheet

MFR RecommendedRFQ

LP3470IM5-4.63/NOPB

Texas InstrumentsIn Stock: 2138LP3470IM5-4.63/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP3470IM5X-4.63/NOPB is determined by the following critical parameters:

Primary Substitution Criteria:

• Single-channel voltage monitoring supervisor functionality
• Open drain or open collector output configuration
• Active low reset logic
• Voltage threshold capability (fixed or adjustable to 4.63V)
• Surface mount packaging compatibility
• Operating temperature range support (-40°C minimum, 85°C minimum upper limit)
• RoHS3 compliance and MSL Level 1 rating

Substitution Categories:

1. Parametric Equivalent (Same Package, Same Threshold): LP3470IM5-4.63/NOPB — Identical electrical specifications and fixed 4.63V threshold in SOT-23-5 package. Differs only in packaging format (Cut Tape & Digi-Reel vs. Tape & Reel).

2. Functional Substitute (Different Package, Adjustable Threshold): TPS389001DSER — Provides equivalent supervisor functionality with adjustable/selectable threshold capability, allowing 4.63V configuration. Packaged in 6-WSON (1.5x1.5) format. Extended operating temperature range (-40°C ~ 125°C). Active product status with higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Package, Same Threshold): Select LP3470IM5-4.63/NOPB when package footprint compatibility with SOT-23-5 is mandatory and fixed 4.63V threshold operation is required. This part maintains identical electrical specifications and threshold voltage. Both the main part and this equivalent are classified as "Not For New Designs," indicating limited long-term availability.

For Long-Term Production Support: Select TPS389001DSER when extended product lifecycle and higher inventory availability are priorities. This part is classified as "Active" product status, ensuring continued manufacturing and supply. The 6-WSON package requires PCB layout modification. The adjustable/selectable threshold capability allows configuration to 4.63V, matching the original specification. Extended operating temperature range (-40°C ~ 125°C) provides additional thermal margin compared to the original part's -40°C ~ 85°C range. All parts maintain ROHS3 compliance and MSL Level 1 rating.

Compliance Considerations: All three parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8542.39.0001. Selection should prioritize product status and supply chain continuity for applications requiring sustained production support.

Frequently Asked Questions (FAQ)

Q: Can LP3470IM5-4.63/NOPB be used as a direct replacement for LP3470IM5X-4.63/NOPB? A: Yes. Both parts are identical in electrical specifications, threshold voltage (4.63V fixed), and SOT-23-5 package. The difference is packaging format: the main part uses Tape & Reel (TR), while the equivalent uses Cut Tape (CT) & Digi-Reel. Both are classified as "Not For New Designs."

Q: What are the key differences between LP3470IM5X-4.63/NOPB and TPS389001DSER? A: The primary differences are package type (SOT-23-5 vs. 6-WSON), threshold voltage configuration (fixed 4.63V vs. adjustable/selectable), operating temperature range (-40°C ~ 85°C vs. -40°C ~ 125°C), and product status (Not For New Designs vs. Active). Both maintain open drain/open collector output, active low reset logic, and single-channel monitoring.

Q: Does TPS389001DSER require circuit design changes? A: PCB layout modification is required due to package change from SOT-23-5 to 6-WSON (1.5x1.5). Threshold voltage configuration may require external component adjustment if the adjustable feature is utilized; however, it can be set to match the original 4.63V specification.

Q: Are all three parts RoHS3 compliant? A: Yes. LP3470IM5X-4.63/NOPB, LP3470IM5-4.63/NOPB, and TPS389001DSER are all ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: Which part should be selected for new production? A: TPS389001DSER is the recommended choice for new production due to its Active product status, ensuring continued availability and manufacturing support. The LP3470 series parts are classified as "Not For New Designs" and face potential supply discontinuation.

Q: What is the inventory status of these parts? A: LP3470IM5X-4.63/NOPB has 808 pcs in stock, LP3470IM5-4.63/NOPB has 2065 pcs in stock, and TPS389001DSER has 131,400 pcs in stock, indicating significantly higher availability for the TPS389001 series.