LP3470M5-4.63/NOPB Equivalent & Substitute Parts

Part Overview

The LP3470M5-4.63/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 output, active low reset, and operates across a temperature range of -20°C to 85°C. The part is classified as "Not For New Designs," indicating its status in the product lifecycle. Alternative components are necessary for new design implementations and long-term supply chain continuity.

Substiute Parts

LP3470M5-4.63/NOPB

Texas InstrumentsIn Stock: 8289LP3470M5-4.63/NOPB Datasheet

Current PartRFQ

TPS389001DSER

Texas InstrumentsIn Stock: 131480TPS389001DSER Datasheet

MFR RecommendedRFQ

LP3470M5-4.63

Texas InstrumentsIn Stock: 1939LP3470M5-4.63 Datasheet

Parametric EquivalentRFQ

LP3470M5X-4.63/NOPB

Texas InstrumentsIn Stock: 5786LP3470M5X-4.63/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP3470M5-4.63/NOPB is determined by the following critical parameters:

Primary Substitution Criteria:

• Single-channel voltage monitoring capability
• Open drain or open collector output configuration
• Active low reset logic
• 4.63V voltage threshold (for parametric equivalents)
• Surface mount technology
• ROHS3 compliance and MSL Level 1 rating

Substitution Categories:

Parametric Equivalents maintain identical electrical specifications including the 4.63V threshold, 1ms minimum reset timeout, and -20°C to 85°C operating temperature range. These parts are direct functional replacements within the same package family (SOT-23-5).

Manufacturer Recommended Substitute (TPS389001DSER) differs in package type (6-WSON vs. SOT-23-5) and voltage threshold configuration (adjustable/selectable vs. fixed 4.63V), but maintains core supervisor functionality with extended operating temperature range (-40°C to 125°C) and active product status.

Parameter Comparison

Engineering Selection Recommendations

For Existing Designs (Maintenance & Repair):

LP3470M5-4.63 and LP3470M5X-4.63/NOPB are direct parametric equivalents suitable for component replacement in established applications. Both maintain identical electrical specifications and package compatibility with the main part. LP3470M5-4.63 is classified as Obsolete, while LP3470M5X-4.63/NOPB carries "Not For New Designs" status. Selection between these two should prioritize packaging requirements (Cut Tape vs. Tape & Reel).

For New Design Implementation:

TPS389001DSER is the manufacturer-recommended substitute for new applications. This part carries Active product status, ensuring long-term availability and supply chain stability. The extended operating temperature range (-40°C to 125°C) provides broader environmental coverage compared to the main part (-20°C to 85°C). The adjustable/selectable voltage threshold offers design flexibility for applications requiring threshold customization. PCB layout modifications are necessary due to package change from SOT-23-5 to 6-WSON (1.5x1.5).

Compliance Considerations:

All listed parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring regulatory alignment and simplified handling requirements. REACH status is unaffected across all alternatives.

Frequently Asked Questions (FAQ)

Q: Can LP3470M5-4.63 directly replace LP3470M5-4.63/NOPB in production?

A: LP3470M5-4.63 is a parametric equivalent with identical electrical specifications and package type (SOT-23-5). The primary difference is product status (Obsolete vs. Not For New Designs) and packaging format (Cut Tape vs. Tape & Reel). Direct substitution is electrically valid for maintenance applications, though long-term availability may be limited due to obsolete status.

Q: What is the difference between LP3470M5X-4.63/NOPB and LP3470M5-4.63/NOPB?

A: Both parts are parametric equivalents with identical electrical specifications and package type. The primary distinction is packaging format: LP3470M5X-4.63/NOPB is supplied in Tape & Reel (TR) format with higher inventory availability (5764 pcs), while LP3470M5-4.63/NOPB is supplied in Cut Tape (CT) format. Selection depends on procurement volume and assembly line requirements.

Q: Why is TPS389001DSER recommended for new designs instead of the LP3470 series?

A: TPS389001DSER carries Active product status, ensuring manufacturer support and long-term supply availability. The LP3470M5-4.63/NOPB is classified "Not For New Designs," indicating Texas Instruments does not recommend this part for new applications. TPS389001DSER also provides extended operating temperature range (-40°C to 125°C) and adjustable voltage threshold capability.

Q: Will TPS389001DSER require PCB layout changes?

A: Yes. TPS389001DSER uses a 6-WSON (1.5x1.5) package, while LP3470M5-4.63/NOPB uses SOT-23-5 (SC-74A, SOT-753). These packages have different pinouts and footprints, requiring PCB redesign. Electrical functionality remains compatible (single-channel monitoring, open drain output, active low reset).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. LP3470M5-4.63, LP3470M5X-4.63/NOPB, and TPS389001DSER are all ROHS3 compliant with MSL Level 1 rating, matching the main part's environmental and regulatory specifications.

Q: What is the voltage threshold difference between LP3470M5-4.63/NOPB and TPS389001DSER?

A: LP3470M5-4.63/NOPB has a fixed 4.63V threshold. TPS389001DSER features an adjustable/selectable voltage threshold, allowing threshold customization during design implementation. If a fixed 4.63V threshold is required, parametric equivalents (LP3470M5-4.63 or LP3470M5X-4.63/NOPB) maintain this specification.

Q: Can TPS389001DSER be used in applications with -20°C to 85°C temperature requirements?

A: Yes. TPS389001DSER operates across -40°C to 125°C, which encompasses the -20°C to 85°C range. The extended temperature capability provides additional margin for thermal stress conditions.