TPS3125L30DBVT Equivalent & Substitute Parts

Part Overview

The TPS3125L30DBVT is a single-channel power supply supervisor IC manufactured by Texas Instruments, designed for power-on reset and supervisory functions in embedded systems. This device features push-pull totem pole output configuration with active high/active low reset capability. The main part is currently in Last Time Buy status, making identification of equivalent alternatives essential for ongoing design support and procurement planning. Substitute parts maintain functional equivalence while offering different packaging formats or extended availability.

Substiute Parts

TPS3125L30DBVT

Texas InstrumentsIn Stock: 3299TPS3125L30DBVT Datasheet

Current PartRFQ

TPS3125L30DBVR

Texas InstrumentsIn Stock: 999332TPS3125L30DBVR Datasheet

Parametric EquivalentRFQ

MAX825REUK+T

Analog Devices Inc./Maxim IntegratedIn Stock: 7630MAX825REUK+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS3125L30DBVT is determined by strict parametric matching across the following critical criteria:

Mandatory Matching Parameters:

• Voltage threshold tolerance (2.63V–2.64V acceptable)
• Output configuration (Push-Pull, Totem Pole required)
• Reset functionality (Active High/Active Low required)
• Package type (SC-74A, SOT-753 required)
• Mounting type (Surface Mount required)
• Compliance certifications (ROHS3, REACH status)

Variable Parameters (Non-Critical for Substitution):

• Packaging format (Tape & Reel vs. Cut Tape acceptable)
• Operating temperature range (extended range acceptable)
• Reset timeout specification (≥100ms acceptable)
• Product status (Active status preferred for long-term availability)

The TPS3125L30DBVR qualifies as a parametric equivalent, differing only in packaging format (Cut Tape & Digi-Reel® vs. Tape & Reel). The MAX825REUK+T qualifies as a manufacturer-recommended alternative, with minor parameter variations within acceptable engineering tolerances.

Parameter Comparison

Engineering Selection Recommendations

TPS3125L30DBVR (Parametric Equivalent): This part is recommended as the primary substitute for the TPS3125L30DBVT. It maintains identical electrical specifications and package configuration while offering Active product status and significantly higher inventory availability (999,300 pcs vs. 3,234 pcs). The only difference is packaging format; Cut Tape & Digi-Reel® format is suitable for automated assembly processes. This option provides continuity within the Texas Instruments TPS3125 product line.

MAX825REUK+T (Manufacturer-Recommended Alternative): This part is recommended when extended operating temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C) is required for the application. The voltage threshold (2.63V) and reset timeout (140ms) represent minor variations within acceptable engineering tolerances for supervisor IC applications. Active product status ensures long-term availability. This option provides cross-manufacturer redundancy and is suitable for applications requiring higher temperature performance.

Both substitute parts maintain full compliance with ROHS3 and REACH requirements, matching the original part's environmental certifications.

Frequently Asked Questions (FAQ)

Q: Can TPS3125L30DBVR be used as a direct replacement for TPS3125L30DBVT?

A: Yes. Both parts are electrically identical with matching voltage thresholds (2.64V), output configurations (Push-Pull, Totem Pole), reset types (Active High/Active Low), and package types (SC-74A, SOT-753). The only difference is packaging format: TPS3125L30DBVR is supplied in Cut Tape & Digi-Reel® format instead of Tape & Reel. This difference does not affect circuit functionality or PCB assembly compatibility.

Q: What are the key differences between TPS3125L30DBVT and MAX825REUK+T?

A: The parts differ in three parameters: voltage threshold (2.64V vs. 2.63V), reset timeout (100ms vs. 140ms minimum), and operating temperature range (-40°C ~ 85°C vs. -40°C ~ 125°C). These variations are within acceptable tolerances for supervisor IC applications. Both maintain identical output configuration, reset type, and package type.

Q: Why is TPS3125L30DBVT listed as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing this part. Procurement should transition to TPS3125L30DBVR (same manufacturer, active status) or MAX825REUK+T (alternative manufacturer, active status) to ensure long-term supply chain continuity.

Q: Are all three parts ROHS3 compliant?

A: Yes. TPS3125L30DBVT, TPS3125L30DBVR, and MAX825REUK+T are all ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited). All parts meet the same environmental and compliance requirements.

Q: Which substitute should I select for high-temperature applications?

A: MAX825REUK+T supports operating temperatures up to 125°C, compared to 85°C for the TPS3125L30DBVT and TPS3125L30DBVR. Select MAX825REUK+T if your application requires operation above 85°C.

Q: Does packaging format affect circuit performance?

A: No. Tape & Reel (TR) and Cut Tape & Digi-Reel® (CT) are packaging and delivery formats only. They do not affect electrical performance, functionality, or PCB assembly compatibility. Format selection is based on procurement volume and assembly process requirements.