TPS3824-33DBVT Equivalent & Substitute Parts

Part Overview

The TPS3824-33DBVT is a single-channel power management supervisor IC manufactured by Texas Instruments, designed for power-on reset and supervisory functions in embedded systems. This device operates as a push-pull, totem pole output supervisor with active high/active low reset capability. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts ensures design continuity and supply chain reliability for applications requiring this supervisor functionality.

Substiute Parts

TPS3824-33DBVT

Texas InstrumentsIn Stock: 3498TPS3824-33DBVT Datasheet

Current PartRFQ

TPS3824-33DBVR

Texas InstrumentsIn Stock: 72044TPS3824-33DBVR Datasheet

MFR RecommendedRFQ

MAX6318LHUK29CY+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2553MAX6318LHUK29CY+T Datasheet

MFR RecommendedRFQ

MAX824SEUK+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1405MAX824SEUK+T Datasheet

MFR RecommendedRFQ

MAX824TEUK+T

Analog Devices Inc./Maxim IntegratedIn Stock: 9919MAX824TEUK+T Datasheet

MFR RecommendedRFQ

STM6824SWY6F

STMicroelectronicsIn Stock: 3697STM6824SWY6F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS3824-33DBVT is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Single-channel voltage monitoring capability
• Push-pull, totem pole output configuration
• Active high/active low reset logic
• SOT-23-5 package (SC-74A, SOT-753)
• Surface mount technology
• ROHS3 compliance and REACH unaffected status

Allowable Variation Parameters:

• Voltage threshold: 2.93V is the primary specification; thresholds within the same supervisory range are acceptable
• Reset timeout: Minimum 120ms; longer timeouts are acceptable for applications not requiring faster reset assertion
• Operating temperature range: Extended ranges (-40°C ~ 125°C) are acceptable substitutes for the base range (-40°C ~ 85°C)
• Product status: Active parts are preferred over Last Time Buy status for long-term supply assurance
• Packaging format: Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) are both acceptable for manufacturing integration

All substitute parts listed maintain functional equivalence within these parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TPS3824-33DBVR

The TPS3824-33DBVR is the direct equivalent from Texas Instruments, maintaining identical electrical specifications and package configuration as the TPS3824-33DBVT. This part is in Active product status with significantly higher inventory availability (71,966 units), providing superior supply chain continuity. Selection of this part eliminates manufacturer transition and ensures design validation consistency.

Secondary Substitutes: MAX6318LHUK29CY+T, MAX824SEUK+T, MAX824TEUK+T

These Analog Devices Inc./Maxim Integrated parts maintain functional equivalence with identical voltage threshold (2.93V for MAX6318LHUK29CY+T and MAX824SEUK+T) or acceptable variation (3.08V for MAX824TEUK+T). All three parts feature extended operating temperature ranges (-40°C ~ 125°C), providing enhanced thermal performance. Reset timeout specifications (140ms minimum) exceed the base requirement. These parts are in Active status with robust inventory levels.

Tertiary Substitute: STM6824SWY6F

The STM6824SWY6F from STMicroelectronics provides functional equivalence with matching voltage threshold (2.93V) and operating temperature range (-40°C ~ 85°C). This part is in Active status with adequate inventory (3,622 units). Selection of this part introduces a third-source supplier option for supply chain diversification.

All listed substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can the TPS3824-33DBVT be directly replaced with TPS3824-33DBVR?

A: Yes. The TPS3824-33DBVR is functionally identical to the TPS3824-33DBVT, with matching voltage threshold (2.93V), reset timeout (120ms minimum), operating temperature range (-40°C ~ 85°C), and SOT-23-5 package. The primary difference is product status: TPS3824-33DBVR is in Active status with higher inventory availability.

Q: What is the significance of the voltage threshold parameter in substitution?

A: The voltage threshold determines the supply voltage level at which the supervisor asserts a reset signal. The TPS3824-33DBVT operates at 2.93V. Substitutes with identical thresholds (TPS3824-33DBVR, MAX6318LHUK29CY+T, MAX824SEUK+T, STM6824SWY6F) provide direct functional replacement. The MAX824TEUK+T operates at 3.08V, which is acceptable for applications where the higher threshold does not conflict with system design requirements.

Q: Are Maxim Integrated parts (MAX6318LHUK29CY+T, MAX824SEUK+T, MAX824TEUK+T) compatible with designs using the TPS3824-33DBVT?

A: Yes. All three Maxim parts maintain the required push-pull, totem pole output configuration, active high/active low reset logic, and SOT-23-5 package. Functional compatibility is confirmed. The extended operating temperature range (-40°C ~ 125°C) provides additional thermal margin compared to the base specification.

Q: What is the difference between Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) packaging?

A: Both packaging formats are suitable for surface mount assembly. Cut Tape & Digi-Reel® is typically used for lower-volume or manual assembly operations, while Tape & Reel is optimized for high-volume automated pick-and-place manufacturing. The MAX6318LHUK29CY+T is supplied in Tape & Reel format; all other substitutes are available in Cut Tape & Digi-Reel® format. Selection depends on manufacturing process requirements.

Q: Why is the TPS3824-33DBVT listed as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this specific part number. Existing inventory is available for a limited time. Transition to an active substitute part (TPS3824-33DBVR or equivalent) is necessary for long-term design support and future production requirements.

Q: Can the STM6824SWY6F be used as a long-term substitute?

A: Yes. The STM6824SWY6F is in Active status with matching voltage threshold (2.93V) and operating temperature range (-40°C ~ 85°C). This part provides a third-source supplier option for supply chain diversification and long-term availability assurance.

Q: Are all listed substitutes ROHS3 compliant?

A: Yes. All substitute parts listed (TPS3824-33DBVR, MAX6318LHUK29CY+T, MAX824SEUK+T, MAX824TEUK+T, STM6824SWY6F) are ROHS3 compliant and REACH unaffected, maintaining regulatory alignment with the original TPS3824-33DBVT.