TLV75729PDBVR Equivalent & Substitute Parts

Part Overview

The TLV75729PDBVR is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This active product delivers 1A output current with a fixed 2.9V output and operates across an input range up to 5.5V. The device is packaged in SOT-23-5 surface mount configuration and includes integrated protection features including current limit, thermal shutdown, and under-voltage lockout (UVLO). Finding equivalent or substitute parts may be necessary due to inventory constraints, lead time requirements, or specific application design flexibility within compatible electrical and mechanical parameters.

Substiute Parts

TLV75729PDBVR

Texas InstrumentsIn Stock: 3641TLV75729PDBVR Datasheet

Current PartRFQ

RT9166-12GVL

Richtek USA Inc.In Stock: 20333RT9166-12GVL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLV75729PDBVR must satisfy the following criteria based on allowed electrical and mechanical parameters:

Critical Substitution Parameters:

• Output Configuration: Positive Fixed
• Voltage - Input (Max): 5.5V or greater
• Package / Case: Surface mount compatible with SOT-23 family
• Mounting Type: Surface Mount
• Product Status: Active
• RoHS Compliance: ROHS3 Compliant

The RT9166-12GVL is identified as a manufacturer-recommended substitute. While this part operates at a different fixed output voltage (1.2V versus 2.9V), it meets the core electrical architecture requirements for positive fixed linear regulation within the same input voltage range and surface mount package family. Substitution suitability depends on application-specific output voltage requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the TLV75729PDBVR and RT9166-12GVL are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Selection between these parts must be based on application-specific electrical requirements:

The TLV75729PDBVR provides 1A output current capacity with 2.9V fixed output and operates across a junction temperature range of -40°C to 125°C. The RT9166-12GVL delivers 300mA output current at 1.2V fixed output with an ambient temperature range of -40°C to 85°C. The output voltage and current capacity differences are material to substitution feasibility and must align with circuit design specifications. Package differences (SOT-23-5 versus SOT-23-3) require PCB layout accommodation.

Frequently Asked Questions (FAQ)

Q: Can the RT9166-12GVL directly replace the TLV75729PDBVR in all applications?

A: No. While both are positive fixed linear regulators in surface mount packages, the RT9166-12GVL operates at 1.2V fixed output versus 2.9V for the TLV75729PDBVR, and provides 300mA maximum output current versus 1A. Substitution is only valid for applications requiring 1.2V output at 300mA or less.

Q: What are the package differences between these parts?

A: The TLV75729PDBVR uses SOT-23-5 packaging (5 pins), while the RT9166-12GVL uses SOT-23-3 packaging (3 pins). Both are surface mount configurations, but PCB footprints differ and require separate design accommodation.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the TLV75729PDBVR and RT9166-12GVL are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Q: What is the temperature operating range difference?

A: The TLV75729PDBVR operates from -40°C to 125°C (junction temperature), while the RT9166-12GVL operates from -40°C to 85°C (ambient temperature). Applications requiring operation above 85°C ambient may require the TLV75729PDBVR.

Q: How do the protection features compare?

A: The TLV75729PDBVR includes current limit, thermal shutdown, and UVLO protection. The RT9166-12GVL includes over current and over temperature protection. Both provide essential safeguards, though the specific protection mechanisms differ.