TPS3837L30DBVT Equivalent & Substitute Parts

Part Overview

The TPS3837L30DBVT is a single-channel power supply supervisor IC manufactured by Texas Instruments, designed for power management applications requiring active-high reset functionality with push-pull output configuration. This device operates across the industrial temperature range of -40°C to 85°C and is packaged in the compact SOT-23-5 surface mount form factor.

The TPS3837L30DBVT carries a Last Time Buy product status, indicating that Texas Instruments has discontinued this part number. Organizations currently using this supervisor IC must identify equivalent or substitute components to maintain supply chain continuity for new designs or ongoing production requirements.

Substiute Parts

TPS3837L30DBVT

Texas InstrumentsIn Stock: 3221TPS3837L30DBVT Datasheet

Current PartRFQ

TPS3840DL30DBVR

Texas InstrumentsIn Stock: 3216TPS3840DL30DBVR Datasheet

MFR RecommendedRFQ

TPS3837L30DBVTG4

Texas InstrumentsIn Stock: 1150TPS3837L30DBVTG4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS3837L30DBVT are classified based on alignment with the following critical electrical and mechanical parameters:

Mechanical Compatibility Requirements:

• Package / Case: SC-74A, SOT-753
• Supplier Device Package: SOT-23-5
• Mounting Type: Surface Mount

Electrical Compatibility Parameters:

• Number of Voltages Monitored: 1 channel
• Voltage Threshold: 2.64V (primary criterion for functional equivalence)
• Output Configuration: Push-Pull, Totem Pole (determines circuit interface requirements)
• Reset Logic: Active High (determines signal polarity in system design)
• Reset Timeout: 10ms Minimum (determines system initialization timing)

Regulatory & Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories: MFR Recommended substitutes (manufacturer-endorsed alternatives) and Parametric Equivalents (parts with identical electrical specifications but different product status).

Parameter Comparison

Engineering Selection Recommendations

TPS3840DL30DBVR (MFR Recommended Substitute):

This part is designated as the manufacturer-recommended alternative and carries Active product status, ensuring long-term availability and supply chain stability. The TPS3840DL30DBVR maintains identical mechanical compatibility through the SOT-23-5 package and identical single-channel monitoring architecture.

Critical differences exist in electrical parameters: the voltage threshold is 3V (versus 2.64V), the output configuration is Open Drain or Open Collector (versus Push-Pull, Totem Pole), the reset logic is Active Low (versus Active High), and the reset timeout is 619ms Typical (versus 10ms Minimum). The operating temperature range extends to 125°C (TJ) compared to 85°C (TA).

Selection of the TPS3840DL30DBVR requires circuit redesign to accommodate the different output topology, reset polarity, and timing characteristics. This substitute is appropriate only when system architecture can be modified to accept these electrical parameter changes.

TPS3837L30DBVTG4 (Parametric Equivalent):

This part provides identical electrical specifications to the TPS3837L30DBVT, including voltage threshold (2.64V), output configuration (Push-Pull, Totem Pole), reset logic (Active High), and reset timeout (10ms Minimum). Mechanical compatibility is maintained through the SOT-23-5 package.

The TPS3837L30DBVTG4 carries Obsolete product status, indicating that Texas Instruments has discontinued this variant. While parametrically equivalent, this part does not provide a sustainable long-term supply solution and should be considered only for short-term inventory supplementation or legacy system maintenance.

Frequently Asked Questions (FAQ)

Q: Can the TPS3840DL30DBVR be used as a direct drop-in replacement for the TPS3837L30DBVT?

A: No. While both parts share the SOT-23-5 package and single-channel monitoring architecture, the TPS3840DL30DBVR differs in four critical electrical parameters: voltage threshold (3V vs. 2.64V), output configuration (Open Drain vs. Push-Pull), reset logic polarity (Active Low vs. Active High), and reset timeout (619ms vs. 10ms). Circuit redesign is required to accommodate these differences.

Q: What is the difference between the TPS3837L30DBVTG4 and the TPS3837L30DBVT?

A: The TPS3837L30DBVTG4 is parametrically identical to the TPS3837L30DBVT in all electrical specifications and package configuration. The primary difference is product status: the TPS3837L30DBVT is Last Time Buy, while the TPS3837L30DBVTG4 is Obsolete. Neither part offers long-term supply continuity.

Q: Which substitute should be selected for new designs?

A: For new designs requiring long-term component availability, the TPS3840DL30DBVR is the only option with Active product status. However, this selection requires circuit redesign to accommodate differences in output topology, reset polarity, and timing parameters. The design must be validated against the new electrical specifications.

Q: Are all substitute parts RoHS3 compliant and REACH unaffected?

A: Yes. The TPS3837L30DBVT, TPS3840DL30DBVR, and TPS3837L30DBVTG4 are all ROHS3 Compliant with REACH Unaffected status and Moisture Sensitivity Level 1 (Unlimited).

Q: What is the impact of the different operating temperature ranges?

A: The TPS3837L30DBVT and TPS3837L30DBVTG4 operate from -40°C to 85°C (TA), while the TPS3840DL30DBVR extends to -40°C to 125°C (TJ). The TPS3840DL30DBVR provides wider temperature coverage, which may be advantageous in high-temperature applications, but this benefit is secondary to the requirement for circuit redesign to accommodate other electrical parameter differences.