LP3470M5-2.93/NOPB Equivalent & Substitute Parts

Part Overview

The LP3470M5-2.93/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 2.93V threshold voltage. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Due to this product status, identifying equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where continued availability is required.

Substiute Parts

LP3470M5-2.93/NOPB

Texas InstrumentsIn Stock: 1527LP3470M5-2.93/NOPB Datasheet

Current PartRFQ

TPS389030DSER

Texas InstrumentsIn Stock: 25420TPS389030DSER Datasheet

MFR RecommendedRFQ

LP3470M5X-2.93/NOPB

Texas InstrumentsIn Stock: 2076LP3470M5X-2.93/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP3470M5-2.93/NOPB are identified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Single-channel voltage monitoring supervisor functionality
• Open drain or open collector output configuration
• Active low reset logic
• ROHS3 compliance and REACH unaffected status
• Surface mount technology

Substitution Categories:

Parametric Equivalent: LP3470M5X-2.93/NOPB maintains identical electrical specifications including the 2.93V threshold voltage, 1ms minimum reset timeout, and -20°C ~ 85°C operating temperature range. The primary difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel), making this suitable for direct replacement in equivalent quantities.

Manufacturer Recommended Substitute: TPS389030DSER represents an active product alternative with functional equivalence in supervisor operation and output type. This part operates across an extended temperature range (-40°C ~ 125°C) and uses a different package format (6-WSON 1.5x1.5). The voltage threshold is specified as 3V, representing a 0.07V deviation from the original 2.93V specification. This part is actively manufactured and supported.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same PCB Layout): LP3470M5X-2.93/NOPB is the appropriate selection when PCB layout and package footprint constraints require the SOT-23-5 form factor. This part maintains identical electrical specifications and threshold voltage, differing only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). Both parts carry "Not For New Designs" status, indicating equivalent lifecycle positioning.

For New Designs or Extended Lifecycle Support: TPS389030DSER is the manufacturer-recommended active product alternative. This part is currently in active production status, ensuring long-term availability and ongoing manufacturer support. The extended operating temperature range (-40°C ~ 125°C versus -20°C ~ 85°C) provides broader environmental compatibility. The 6-WSON package requires PCB redesign but offers improved thermal characteristics. The 3V threshold voltage represents a 0.07V specification difference from the original 2.93V, which must be evaluated against system voltage monitoring requirements.

Compliance Considerations: All three parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for both legacy and new applications.

Frequently Asked Questions (FAQ)

Q: Can LP3470M5X-2.93/NOPB be used as a direct drop-in replacement for LP3470M5-2.93/NOPB?

A: Yes. Both parts are electrically identical with matching threshold voltage (2.93V), reset timeout (1ms minimum), and operating temperature range (-20°C ~ 85°C). The difference is packaging format only. LP3470M5X-2.93/NOPB uses Cut Tape & Digi-Reel® packaging while LP3470M5-2.93/NOPB uses Tape & Reel. Both use the same SOT-23-5 package footprint.

Q: What is the voltage threshold difference between LP3470M5-2.93/NOPB and TPS389030DSER?

A: LP3470M5-2.93/NOPB has a 2.93V threshold, while TPS389030DSER specifies 3V. This 0.07V difference must be evaluated against your system's voltage monitoring requirements and tolerance specifications.

Q: Why does TPS389030DSER have a different package than the LP3470 series?

A: TPS389030DSER uses a 6-WSON (1.5x1.5) package compared to the SOT-23-5 package of the LP3470 series. This package change requires PCB redesign but is necessary for the active product offering. The different package does not affect functional compatibility of the supervisor operation.

Q: Can I use TPS389030DSER in a legacy system designed for LP3470M5-2.93/NOPB?

A: Functional substitution is possible if the system can accommodate the 6-WSON package footprint and the 3V threshold voltage is acceptable for your voltage monitoring application. PCB redesign would be required. The extended operating temperature range (-40°C ~ 125°C) provides improved environmental coverage compared to the original -20°C ~ 85°C specification.

Q: Are all three parts RoHS and REACH compliant?

A: Yes. LP3470M5-2.93/NOPB, LP3470M5X-2.93/NOPB, and TPS389030DSER are all ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What is the product status difference between these parts?

A: LP3470M5-2.93/NOPB and LP3470M5X-2.93/NOPB are both classified as "Not For New Designs," indicating end-of-life status. TPS389030DSER is classified as "Active," meaning it is currently manufactured and supported by Texas Instruments for new designs and ongoing production.