TPS3823-50DBVT Equivalent & Substitute Parts

Part Overview

The TPS3823-50DBVT 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 monitors a single voltage rail and provides active-low reset output with push-pull, totem-pole configuration. The part is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for ongoing production and maintenance applications.

Substiute Parts

TPS3823-50DBVT

Texas InstrumentsIn Stock: 4757TPS3823-50DBVT Datasheet

Current PartRFQ

TPS3823-50DBVR

Texas InstrumentsIn Stock: 23408TPS3823-50DBVR Datasheet

Parametric EquivalentRFQ

MAX823LEUK+T

Analog Devices Inc./Maxim IntegratedIn Stock: 17998MAX823LEUK+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS3823-50DBVT are identified based on strict electrical and mechanical parameter matching. The critical parameters that determine substitutability are:

• Single voltage monitoring channel
• Voltage threshold of 4.55V (±tolerance)
• Push-pull, totem-pole output configuration
• Active-low reset logic
• Reset timeout of 120ms minimum
• SOT-23-5 package (SC-74A, SOT-753)
• Surface mount technology
• Operating temperature range compatibility
• RoHS3 compliance

Two substitute parts meet these criteria with documented equivalence:

TPS3823-50DBVR (Texas Instruments) — Parametric equivalent with identical electrical specifications and same base product number (TPS3823). Differs only in packaging format (Digi-Reel vs. Cut Tape) and product status (Active vs. Last Time Buy).

MAX823LEUK+T (Analog Devices Inc./Maxim Integrated) — Manufacturer-recommended alternative with functionally equivalent supervisor architecture. Operates within compatible parameter ranges with minor variations in voltage threshold (4.63V) and reset timeout (140ms minimum), both within acceptable engineering tolerances for supervisor IC applications.

Parameter Comparison

Engineering Selection Recommendations

TPS3823-50DBVR is the preferred direct substitute for the TPS3823-50DBVT. Both parts share identical electrical specifications, base product number, and are manufactured by Texas Instruments. The TPS3823-50DBVR maintains Active product status, ensuring long-term availability and supply chain stability. This part is suitable for direct replacement in existing designs without circuit modification.

MAX823LEUK+T serves as a cross-manufacturer alternative when TPS3823 series availability is constrained. The MAX823LEUK+T is manufactured by Analog Devices Inc./Maxim Integrated and maintains Active product status. The voltage threshold variance (4.63V vs. 4.55V) and extended reset timeout (140ms vs. 120ms) represent minor parameter deviations acceptable for supervisor IC applications. The extended operating temperature range (-40°C ~ 125°C) provides additional thermal margin. Both substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring regulatory and environmental compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can TPS3823-50DBVR be used as a direct replacement for TPS3823-50DBVT?

A: Yes. The TPS3823-50DBVR is a parametric equivalent with identical electrical specifications, including voltage threshold (4.55V), reset timeout (120ms minimum), output configuration (push-pull, totem-pole), and package format (SOT-23-5). The only differences are packaging format and product status. No circuit modifications are required.

Q: What are the key differences between TPS3823-50DBVT and MAX823LEUK+T?

A: Both parts function as single-channel power supply supervisors with identical package and output configurations. The MAX823LEUK+T has a slightly higher voltage threshold (4.63V vs. 4.55V), longer reset timeout (140ms vs. 120ms minimum), and extended operating temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C). These differences are within acceptable tolerances for supervisor IC applications.

Q: Are all substitute parts available in the same package?

A: Yes. All three parts (TPS3823-50DBVT, TPS3823-50DBVR, and MAX823LEUK+T) use the SOT-23-5 package (SC-74A, SOT-753) with surface mount technology. No PCB layout modifications are necessary when substituting between these parts.

Q: Why is the TPS3823-50DBVT marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued this part number. Existing inventory is available for final orders, but long-term supply cannot be guaranteed. Transitioning to TPS3823-50DBVR or MAX823LEUK+T ensures continued design support and supply chain reliability.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental compliance is maintained across all substitutes.

Q: Which substitute part should be selected for new designs?

A: TPS3823-50DBVR is recommended for new designs requiring Texas Instruments sourcing. MAX823LEUK+T is suitable when cross-manufacturer sourcing or extended temperature range (-40°C ~ 125°C) is required. Both parts maintain Active product status and long-term availability.