LP3470M5X-2.93/NOPB Equivalent & Substitute Parts

Part Overview

The LP3470M5X-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 operates across a temperature range of -20°C to 85°C. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Due to this product status and potential supply constraints, identifying equivalent and substitute components is essential for design continuity and procurement planning.

Substiute Parts

LP3470M5X-2.93/NOPB

Texas InstrumentsIn Stock: 2076LP3470M5X-2.93/NOPB Datasheet

Current PartRFQ

TPS389030DSER

Texas InstrumentsIn Stock: 25420TPS389030DSER Datasheet

MFR RecommendedRFQ

LP3470M5-2.93/NOPB

Texas InstrumentsIn Stock: 1527LP3470M5-2.93/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP3470M5X-2.93/NOPB is determined by the following critical parameters:

Functional Equivalence Criteria:

• Single-channel voltage monitoring supervisor
• Open drain or open collector output configuration
• Active low reset signal
• Power-on reset functionality

Electrical Compatibility Criteria:

• Voltage threshold setting (2.93V nominal)
• Reset timeout specification (1ms minimum)
• Output type (open drain/open collector)

Physical & Environmental Criteria:

• Surface mount technology
• RoHS3 compliance
• MSL rating of 1 (Unlimited)
• REACH compliance

Two substitute categories are identified:

1. Parametric Equivalent (LP3470M5-2.93/NOPB): Identical electrical specifications and voltage threshold with matching package type (SOT-23-5), differing only in packaging format (Tape & Reel vs. Cut Tape).

2. Manufacturer Recommended Substitute (TPS389030DSER): Functionally equivalent supervisor with identical output type and reset polarity. This part operates across an extended temperature range (-40°C to 125°C) and is in Active product status, making it suitable for new designs. The voltage threshold is 3V (versus 2.93V), and the package is 6-WSON (1.5x1.5), requiring PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same PCB Layout): LP3470M5-2.93/NOPB is the appropriate selection when PCB layout cannot be modified. This part maintains identical electrical specifications, voltage threshold, package footprint, and temperature range as the original LP3470M5X-2.93/NOPB. Both parts carry "Not For New Designs" status and are ROHS3 compliant with unlimited MSL rating. The only difference is packaging format (Tape & Reel versus Cut Tape), which does not affect electrical performance or board-level compatibility.

For New Designs or Extended Temperature Requirements: TPS389030DSER is the manufacturer-recommended substitute for applications requiring active product status or extended operating temperature range (-40°C to 125°C versus -20°C to 85°C). This part requires PCB layout modification due to package change from SOT-23-5 to 6-WSON (1.5x1.5). The voltage threshold is 3V instead of 2.93V; circuit design must accommodate this 70mV difference. TPS389030DSER maintains identical output type (open drain/open collector), reset polarity (active low), and compliance certifications (ROHS3, REACH Unaffected, MSL 1).

Frequently Asked Questions (FAQ)

Q: Can LP3470M5-2.93/NOPB be used as a direct replacement for LP3470M5X-2.93/NOPB? A: Yes. Both parts are electrically identical with matching voltage threshold (2.93V), output type (open drain/open collector), reset polarity (active low), and package footprint (SOT-23-5). The difference is packaging format only (Tape & Reel versus Cut Tape), which does not affect circuit performance or PCB compatibility.

Q: What is the key difference between LP3470M5X-2.93/NOPB and TPS389030DSER? A: The primary differences are product status, operating temperature range, voltage threshold, and package type. TPS389030DSER is an active product with extended temperature range (-40°C to 125°C), while LP3470M5X-2.93/NOPB is not for new designs with limited temperature range (-20°C to 85°C). TPS389030DSER uses a 6-WSON package versus SOT-23-5, requiring PCB layout modification. The voltage threshold differs by 70mV (3V versus 2.93V).

Q: Is TPS389030DSER suitable for designs currently using LP3470M5X-2.93/NOPB? A: TPS389030DSER is functionally suitable if the circuit design can accommodate a 3V threshold instead of 2.93V and if PCB layout can be modified for the 6-WSON package. The extended temperature range and active product status make it preferable for new designs. Existing designs must evaluate whether the voltage threshold difference affects system performance.

Q: Are all three parts RoHS3 compliant? A: Yes. LP3470M5X-2.93/NOPB, LP3470M5-2.93/NOPB, and TPS389030DSER are all ROHS3 compliant with REACH Unaffected status and MSL rating of 1 (Unlimited).

Q: What does "Not For New Designs" mean for LP3470M5X-2.93/NOPB? A: This product status indicates the part has reached end-of-life and is no longer recommended for new circuit designs. Existing inventory remains available, but Texas Instruments recommends using active alternatives like TPS389030DSER for new applications.

Q: Can the package be changed from SOT-23-5 to 6-WSON without affecting functionality? A: Package change from SOT-23-5 to 6-WSON requires PCB layout modification, including different pad patterns and trace routing. Electrical functionality remains equivalent if the voltage threshold difference (2.93V to 3V) is acceptable for the application. Board-level testing is necessary to confirm performance in the new package configuration.