TPS3823-33DBVT Equivalent & Substitute Parts

Part Overview

The TPS3823-33DBVT is a single-channel power management supervisor IC manufactured by Texas Instruments, designed for power-on reset and voltage monitoring applications. This device features push-pull totem pole output, active low reset, and operates across the industrial temperature range of -40°C to 85°C. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs and long-term product support.

Substiute Parts

TPS3823-33DBVT

Texas InstrumentsIn Stock: 7183TPS3823-33DBVT Datasheet

Current PartRFQ

TPS3823-33DBVR

Texas InstrumentsIn Stock: 125268TPS3823-33DBVR Datasheet

Parametric EquivalentRFQ

TPS3823-33DBVRG4

Texas InstrumentsIn Stock: 2365TPS3823-33DBVRG4 Datasheet

Parametric EquivalentRFQ

TPS3823A-33DBVR

Texas InstrumentsIn Stock: 25404TPS3823A-33DBVR Datasheet

Parametric EquivalentRFQ

TPS3823A-33DBVT

Texas InstrumentsIn Stock: 2950TPS3823A-33DBVT Datasheet

Parametric EquivalentRFQ

APX823-29W5G-7

Diodes IncorporatedIn Stock: 33934APX823-29W5G-7 Datasheet

MFR RecommendedRFQ

MAX6316LUK29CY+T

Analog Devices Inc./Maxim IntegratedIn Stock: 8886MAX6316LUK29CY+T Datasheet

MFR RecommendedRFQ

STM6822SWY6F

STMicroelectronicsIn Stock: 17362STM6822SWY6F Datasheet

MFR RecommendedRFQ

STM6823SWY6F

STMicroelectronicsIn Stock: 16473STM6823SWY6F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS3823-33DBVT are classified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

• Voltage threshold: 2.93V
• Reset logic: Active Low
• Number of voltages monitored: 1 channel
• Output type: Push-Pull, Totem Pole (for direct pin-compatible substitutes)
• Package: SOT-23-5 (SC-74A, SOT-753)
• Mounting type: Surface Mount
• Reset timeout: 120ms minimum or greater

Substitution Categories:

Parametric Equivalents (Texas Instruments): Parts sharing identical electrical specifications and packaging with the main part. These include TPS3823-33DBVR, TPS3823-33DBVRG4, TPS3823A-33DBVR, and TPS3823A-33DBVT. All maintain the same voltage threshold, output configuration, and reset characteristics.

Manufacturer Recommended Alternatives (Cross-Manufacturer): Parts from alternative manufacturers (Diodes Incorporated, Analog Devices/Maxim, STMicroelectronics) that meet the core functional requirements. These may have minor variations in reset timeout (140ms vs. 120ms) or output configuration (open drain vs. push-pull) but maintain the same voltage monitoring threshold and package footprint.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

TPS3823-33DBVR and TPS3823A-33DBVR are the preferred substitutes. Both are Texas Instruments products with Active product status, identical electrical specifications, and superior inventory availability (125,200 and 25,300 units respectively). These parts maintain 100% pin and functional compatibility with the original TPS3823-33DBVT.

Secondary Substitutes (Cross-Manufacturer, Active Status):

STM6823SWY6F (STMicroelectronics) and MAX6316LUK29CY+T (Analog Devices/Maxim) are suitable alternatives for new designs. Both maintain the push-pull totem pole output configuration, identical voltage threshold, and SOT-23-5 packaging. The STM6823SWY6F offers the highest inventory (16,440 units), while MAX6316LUK29CY+T provides extended operating temperature range (-40°C to 125°C).

Alternative with Output Configuration Difference:

STM6822SWY6F features open drain/open collector output instead of push-pull. This part is suitable only for applications where the output configuration change is acceptable and the circuit design accommodates open drain operation.

Avoid:

TPS3823-33DBVRG4 is Obsolete status and should not be selected for new production despite electrical equivalence. TPS3823A-33DBVT is Last Time Buy status and has limited inventory (2,879 units).

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the original part's regulatory requirements. Moisture sensitivity levels are acceptable across all options (MSL 1 or MSL 3).

Frequently Asked Questions (FAQ)

Q: Can TPS3823-33DBVR be used as a direct replacement for TPS3823-33DBVT?

A: Yes. TPS3823-33DBVR is a parametric equivalent with identical voltage threshold (2.93V), output type (push-pull totem pole), reset logic (active low), reset timeout (120ms minimum), operating temperature range (-40°C to 85°C), and SOT-23-5 packaging. The only difference is product status (Active vs. Last Time Buy) and packaging format (Digi-Reel vs. Cut Tape). Pin-for-pin compatibility is confirmed.

Q: What is the difference between TPS3823-33DBVT and TPS3823A-33DBVT?

A: Both parts share identical electrical specifications and packaging. The "A" suffix indicates a product revision. Both are suitable substitutes for each other, though TPS3823A-33DBVT is Last Time Buy status with lower inventory.

Q: Can STM6822SWY6F replace TPS3823-33DBVT?

A: STM6822SWY6F is not a direct replacement. While it maintains the same voltage threshold (2.93V), reset logic (active low), and SOT-23-5 package, the output configuration differs: STM6822SWY6F uses open drain/open collector output versus the push-pull totem pole output of TPS3823-33DBVT. Substitution requires circuit redesign to accommodate the different output stage.

Q: Is MAX6316LUK29CY+T compatible with TPS3823-33DBVT?

A: MAX6316LUK29CY+T is functionally compatible for the core supervisor function. It maintains the same voltage threshold (2.93V), output type (push-pull totem pole), reset logic (active low), and SOT-23-5 packaging. The reset timeout is 140ms (vs. 120ms), which is acceptable as it exceeds the minimum requirement. Operating temperature extends to 125°C, providing additional margin. Pin compatibility is confirmed.

Q: Why does APX823-29W5G-7 use SOT-25 packaging instead of SOT-23-5?

A: APX823-29W5G-7 is manufactured by Diodes Incorporated and uses SOT-25 packaging, which is a different footprint from SOT-23-5. While electrically equivalent (2.93V threshold, push-pull output, active low reset), this part requires PCB layout modification and is not pin-compatible. Use only if PCB redesign is acceptable.

Q: Which substitute offers the best inventory availability?

A: APX823-29W5G-7 (Diodes Incorporated) has the highest inventory at 33,888 units, followed by TPS3823-33DBVR (Texas Instruments) at 125,200 units. For immediate availability with confirmed pin compatibility, TPS3823-33DBVR is the optimal choice.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH Unaffected status, matching the regulatory requirements of the original TPS3823-33DBVT.

Q: What is the significance of the reset timeout difference (120ms vs. 140ms)?

A: The reset timeout defines the minimum duration the reset output remains asserted after power supply stabilization. A 140ms timeout exceeds the 120ms requirement and is functionally acceptable. The longer timeout provides additional margin for power supply settling and is not a limitation for substitution.