LP3470M5-2.63/NOPB Equivalent & Substitute Parts

Part Overview

The LP3470M5-2.63/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 the industrial temperature range of -20°C to 85°C. The part is classified as "Not For New Designs," indicating it has been superseded in Texas Instruments' product portfolio. Finding equivalent or substitute parts is necessary for applications requiring continued support, higher temperature operation, or updated packaging technologies.

Substiute Parts

LP3470M5-2.63/NOPB

Texas InstrumentsIn Stock: 2023LP3470M5-2.63/NOPB Datasheet

Current PartRFQ

TPS389025DSER

Texas InstrumentsIn Stock: 1114TPS389025DSER Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LP3470M5-2.63/NOPB is determined by the following critical parameters:

• Functional Type: Single-channel power supply supervisor with simple reset/power-on reset capability
• Output Configuration: Open drain or open collector output with active low reset logic
• Voltage Monitoring: Single voltage threshold monitoring
• Mounting Technology: Surface mount only
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status required

The substitute part TPS389025DSER meets these core functional requirements while offering improvements in product status (Active vs. Not For New Designs), extended operating temperature range (-40°C to 125°C vs. -20°C to 85°C), and modern packaging (6-WSON vs. SOT-23-5). The voltage threshold differs (2.5V vs. 2.63V), which must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The TPS389025DSER is the manufacturer-recommended substitute for the LP3470M5-2.63/NOPB. Selection between these parts should be based on the following criteria:

Use LP3470M5-2.63/NOPB when:

• Existing designs require the SOT-23-5 package footprint
• The 2.63V threshold voltage is a critical design parameter
• Operating temperature range does not exceed -20°C to 85°C
• Legacy system support is required

Use TPS389025DSER when:

• New designs are being developed
• Extended temperature operation (-40°C to 125°C) is required
• The 6-WSON package is acceptable for the application
• The 2.5V threshold voltage is compatible with system requirements
• Active product support and long-term availability are priorities

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The voltage threshold difference (2.63V vs. 2.5V) must be evaluated against specific application voltage monitoring requirements.

Frequently Asked Questions (FAQ)

Q: Can TPS389025DSER directly replace LP3470M5-2.63/NOPB in existing designs?

A: Functional replacement is possible if the application tolerates the 2.5V threshold voltage (versus 2.63V) and the 6-WSON package footprint can be accommodated. PCB layout modifications will be required due to package differences.

Q: What is the primary difference between these supervisor ICs?

A: Both are single-channel power supply supervisors with identical functional architecture (open drain output, active low reset, single voltage monitoring). The TPS389025DSER offers extended temperature range (-40°C to 125°C vs. -20°C to 85°C), modern packaging (6-WSON), and active product status.

Q: Does the voltage threshold difference affect compatibility?

A: The 0.13V difference (2.63V vs. 2.5V) may be significant depending on the monitored supply voltage and system tolerance. Applications with tight voltage monitoring requirements must verify threshold compatibility before substitution.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both LP3470M5-2.63/NOPB and TPS389025DSER are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What packaging considerations apply to substitution?

A: LP3470M5-2.63/NOPB uses SOT-23-5 (5-pin small outline), while TPS389025DSER uses 6-WSON (1.5x1.5mm). The TPS389025DSER package is smaller and requires PCB redesign. Pin-to-function mapping must be verified against device datasheets.

Q: Why is LP3470M5-2.63/NOPB marked "Not For New Designs"?

A: This designation indicates the part has been superseded by newer alternatives in Texas Instruments' product line. TPS389025DSER represents the active replacement with improved specifications and long-term availability.