TPS3823A-33DBVT Equivalent & Substitute Parts

Part Overview

The TPS3823A-33DBVT is a single-channel power management supervisor IC manufactured by Texas Instruments, designed for power-on reset and voltage monitoring applications. This device operates as a push-pull, totem pole output supervisor with a 2.93V threshold and 120ms minimum reset timeout. The part is currently in Last Time Buy status, indicating limited availability and the necessity to identify equivalent alternatives for ongoing production and maintenance requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	TPS3823A-33DBVT
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	2.93V
Output Configuration	Push-Pull, Totem Pole
Reset Logic	Active Low
Reset Timeout	120ms Minimum
Operating Temperature Range	-40°C ~ 85°C (TA)
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-23-5
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the TPS3823A-33DBVT is determined by strict equivalence across the following critical parameters:

Single-channel voltage monitoring capability
2.93V voltage threshold
Push-pull, totem pole output configuration
Active low reset logic
120ms minimum reset timeout
SOT-23-5 package (SC-74A, SOT-753)
Surface mount technology
Operating temperature range of -40°C to 85°C
ROHS3 compliance and REACH unaffected status

All substitute parts listed maintain identical electrical and mechanical specifications across these parameters, ensuring functional and physical compatibility in circuit applications.

Parameter Comparison

Parameter	TPS3823A-33DBVT	TPS3823-33DBVR	TPS3823-33DBVRG4	TPS3823-33DBVT	TPS3823A-33DBVR
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Type	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset	Simple Reset/Power-On Reset
Number of Voltages Monitored	1	1	1	1	1
Voltage - Threshold	2.93V	2.93V	2.93V	2.93V	2.93V
Output Configuration	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole
Reset Logic	Active Low	Active Low	Active Low	Active Low	Active Low
Reset Timeout	120ms Minimum	120ms Minimum	120ms Minimum	120ms Minimum	120ms Minimum
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753
Supplier Device Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Last Time Buy	Active	Obsolete	Last Time Buy	Active

Engineering Selection Recommendations

For applications currently using TPS3823A-33DBVT, the following selection criteria apply based on product status and compliance:

Primary Recommendation: TPS3823A-33DBVR is the preferred substitute. This part maintains full parametric equivalence with the original device while offering Active product status, ensuring long-term availability and supply chain continuity. Both parts are ROHS3 compliant and REACH unaffected.

Secondary Recommendation: TPS3823-33DBVR provides parametric equivalence with Active product status. This variant is suitable for new designs and ongoing production where supply assurance is required.

Alternative Option: TPS3823-33DBVT offers parametric equivalence but carries Last Time Buy status, similar to the original part. This option is suitable only for immediate replacement needs where inventory is available.

Not Recommended for New Designs: TPS3823-33DBVRG4 is classified as Obsolete and should not be selected for new applications despite maintaining full parametric equivalence.

Frequently Asked Questions (FAQ)

Q: Can TPS3823A-33DBVR be used as a direct replacement for TPS3823A-33DBVT?

A: Yes. Both parts are parametrically equivalent across all critical specifications including voltage threshold, output configuration, reset timing, package type, and compliance certifications. The primary difference is product status: TPS3823A-33DBVR is Active while TPS3823A-33DBVT is Last Time Buy.

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

A: Both parts maintain identical electrical and mechanical specifications. The designation difference reflects manufacturing variants within the TPS3823 base product family. All parameters critical to substitution are equivalent.

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

A: Yes. All listed substitute parts use the SOT-23-5 package (SC-74A, SOT-753) with surface mount technology, ensuring physical compatibility on existing PCB layouts.

Q: Why is TPS3823-33DBVRG4 listed as not recommended despite parametric equivalence?

A: TPS3823-33DBVRG4 is classified as Obsolete. While electrically and mechanically equivalent, obsolete parts present supply chain risk and should not be selected for new designs or long-term production applications.

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

A: Yes. All substitute parts listed are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited), ensuring compliance with environmental and regulatory standards.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the identical temperature range of -40°C to 85°C (TA), maintaining thermal performance equivalence with the original TPS3823A-33DBVT.

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