TPS76338DBVR Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The TPS76338DBVR is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3.8V output applications with 150mA current capacity in SOT-23-5 surface mount packaging. This part is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support long-term product availability for applications requiring this specific voltage regulation function.

Substiute Parts

TPS76338DBVR

Texas InstrumentsIn Stock: 999127TPS76338DBVR Datasheet

Current PartRFQ

TPS76301QDBVRQ1

Texas InstrumentsIn Stock: 239690TPS76301QDBVRQ1 Datasheet

MFR RecommendedRFQ

TPS76338DBVT

Texas InstrumentsIn Stock: 1725TPS76338DBVT Datasheet

Parametric EquivalentRFQ

S-1200B38-M5T1U

ABLIC Inc.In Stock: 1293S-1200B38-M5T1U Datasheet

MFR RecommendedRFQ

S-L2980A38MC-TF-U

ABLIC Inc.In Stock: 1135S-L2980A38MC-TF-U Datasheet

MFR RecommendedRFQ

XC6209B382MR-G

Torex Semiconductor LtdIn Stock: 1067XC6209B382MR-G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS76338DBVR are classified based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Fixed output voltage of 3.8V
• Output current rating of 150mA minimum
• Maximum input voltage of 10V or greater
• SOT-23-5 package compatibility
• Surface mount technology
• Positive output configuration

Substitution Categories:

Category 1: Parametric Equivalent (Identical Specifications) Parts matching all electrical specifications and packaging of the main part, differing only in packaging format (Cut Tape vs. Tape & Reel).

Category 2: Manufacturer Recommended Substitute (Different Output Type) Parts from the original manufacturer (Texas Instruments) with adjustable output capability, allowing configuration to 3.8V output while providing design flexibility for future modifications.

Category 3: Cross-Manufacturer Equivalents (Fixed Output) Parts from alternative manufacturers (ABLIC Inc., Torex Semiconductor Ltd) with identical fixed 3.8V output and 150mA current rating, meeting all functional requirements within specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): TPS76338DBVT is the primary direct replacement, offering identical electrical performance and specifications. Both parts are from Texas Instruments with matching output voltage, current rating, and operating temperature range. The difference is packaging format: TPS76338DBVT is supplied in Tape & Reel format versus Cut Tape for the original part.

For Active Product Status with Extended Support: TPS76301QDBVRQ1 provides an active alternative from Texas Instruments with AEC-Q100 automotive qualification. While this part features adjustable output (1.5V ~ 6.5V), it can be configured to deliver 3.8V output through external resistor networks. This option ensures long-term availability and automotive-grade reliability.

For Cross-Manufacturer Alternatives: S-1200B38-M5T1U and S-L2980A38MC-TF-U from ABLIC Inc., and XC6209B382MR-G from Torex Semiconductor Ltd all meet the core functional requirements with fixed 3.8V output and 150mA capacity. These parts feature lower quiescent current (1 µA and 50 µA respectively) compared to the original 100 µA specification, offering potential power consumption benefits. Operating temperature range is limited to -40°C ~ 85°C, which is acceptable for most commercial and industrial applications but does not extend to the original part's 125°C maximum.

Compliance Considerations: All substitute parts maintain RoHS3 compliance, REACH unaffected status, and EAR99 export classification consistent with the original part. MSL rating of 1 (Unlimited) is maintained across all alternatives.

Frequently Asked Questions (FAQ)

Q: Can TPS76338DBVT be used as a direct replacement for TPS76338DBVR? A: Yes. Both parts are identical in electrical specifications and performance. The only difference is packaging format: TPS76338DBVT uses Tape & Reel packaging while TPS76338DBVR uses Cut Tape. PCB footprint and soldering requirements are identical.

Q: What is the difference between fixed and adjustable output regulators in this list? A: The TPS76301QDBVRQ1 is adjustable (1.5V ~ 6.5V output range) and requires external resistors to set the output voltage to 3.8V. The other parts have fixed 3.8V output requiring no external configuration. Fixed output parts are simpler to implement but offer no voltage adjustment capability.

Q: Why do ABLIC and Torex parts have lower operating temperature maximums? A: The ABLIC (S-1200B38-M5T1U, S-L2980A38MC-TF-U) and Torex (XC6209B382MR-G) alternatives are rated to -40°C ~ 85°C maximum, compared to the original TPS76338DBVR specification of -40°C ~ 125°C. These parts are suitable for commercial and industrial applications but not for high-temperature environments exceeding 85°C.

Q: What does "Last Time Buy" status mean for the TPS76338DBVR? A: Last Time Buy indicates the part is at end-of-life and will no longer be manufactured after a specified date. Existing inventory may be available, but long-term supply cannot be guaranteed. Transitioning to an active alternative part is recommended for new designs or long-term production requirements.

Q: Are all substitute parts RoHS compliant? A: Yes. All parts listed maintain RoHS3 compliance and REACH unaffected status, ensuring compatibility with environmental regulations and industry standards.

Q: Can I use the TPS76301QDBVRQ1 adjustable regulator in place of the fixed output TPS76338DBVR? A: Yes, with design modifications. The TPS76301QDBVRQ1 requires external resistors to set output voltage to 3.8V. This adds component count and PCB area but provides design flexibility. The part is AEC-Q100 qualified, offering automotive-grade reliability.

Q: What are the quiescent current differences, and do they matter? A: The original TPS76338DBVR draws 100 µA quiescent current. ABLIC parts (S-1200B38-M5T1U, S-L2980A38MC-TF-U) draw only 1 µA, and the Torex part (XC6209B382MR-G) draws 50 µA. Lower quiescent current reduces standby power consumption, which is beneficial for battery-powered or always-on applications with minimal load current.

Q: Is the SOT-23-5 package identical across all parts? A: Yes. All parts use SOT-23-5 (SC-74A) package with identical pin configuration and PCB footprint. Physical compatibility is guaranteed for all listed substitutes.