TPS76327DBVT Equivalent & Substitute Parts

Part Overview

The TPS76327DBVT is a linear voltage regulator IC manufactured by Texas Instruments, classified as a positive fixed output power management integrated circuit. This device delivers 150mA output current at a fixed 2.7V output voltage in a compact SOT-23-5 surface mount package. The part is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity. Substitute parts must maintain electrical compatibility across input voltage range, output current capacity, and thermal operating specifications while meeting the same regulatory compliance standards.

Key Parameters

Parameter	TPS76327DBVT
Manufacturer	Texas Instruments
Output Configuration	Positive Fixed
Output Voltage	2.7V
Output Current	150mA
Input Voltage (Max)	10V
Quiescent Current	100 µA
PSRR	60dB (1kHz)
Operating Temperature	-40°C ~ 125°C
Package	SOT-23-5 (SC-74A)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the TPS76327DBVT are classified based on strict electrical parameter alignment. The primary substitution criteria are:

Fixed 2.7V output voltage configuration
150mA output current rating
Maximum 10V input voltage tolerance
SOT-23-5 package compatibility
Surface mount technology
Operating temperature range of -40°C to 125°C (or -40°C to 85°C for extended industrial applications)
ROHS3 compliance and EAR99 export classification

Parametric equivalents maintain identical electrical specifications and package form factor. Manufacturer-recommended alternatives from ABLIC Inc., Microchip Technology, and Torex Semiconductor Ltd meet the core functional requirements while offering variations in quiescent current, dropout voltage, and PSRR characteristics that remain within acceptable design tolerances for 2.7V fixed output applications.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Quiescent Current	PSRR (1kHz)	Operating Temp	Package	Product Status
TPS76327DBVT	Texas Instruments	2.7V	150mA	10V	100 µA	60dB	-40°C ~ 125°C	SOT-23-5	Obsolete
TPS76427DBVR	Texas Instruments	2.7V	150mA	10V	100 µA	60dB	-40°C ~ 125°C	SOT-23-5	Active
TPS76427DBVT	Texas Instruments	2.7V	150mA	10V	100 µA	60dB	-40°C ~ 125°C	SOT-23-5	Active
S-1200B27-M5T1U	ABLIC Inc.	2.7V	150mA	10V	1 µA	70dB	-40°C ~ 85°C	SOT-23-5	Active
S-L2980A27MC-TF-U	ABLIC Inc.	2.7V	150mA	10V	1 µA	70dB	-40°C ~ 85°C	SOT-23-5	Active
TC1185-2.7VCT713	Microchip Technology	2.7V	150mA	6V	80 µA	64dB	-40°C ~ 125°C	SOT-23-5	Active
XC6204B272MR-G	Torex Semiconductor Ltd	2.7V	150mA	10V	120 µA	70dB	-40°C ~ 85°C	SOT-23-5	Active
XC6209B272MR-G	Torex Semiconductor Ltd	2.7V	150mA	10V	50 µA	70dB	-40°C ~ 85°C	SOT-23-5	Active

Engineering Selection Recommendations

Texas Instruments TPS76427DBVR and TPS76427DBVT are direct parametric equivalents with identical electrical specifications and full temperature range operation (-40°C to 125°C). Both parts are currently in active production status and carry ROHS3 compliance certification, making them the primary replacement candidates for obsolete TPS76327DBVT applications.

ABLIC Inc. S-1200B27-M5T1U and S-L2980A27MC-TF-U offer superior quiescent current performance (1 µA versus 100 µA) and enhanced PSRR (70dB versus 60dB), with the trade-off of reduced operating temperature range (-40°C to 85°C). These alternatives are suitable for applications where extended temperature operation above 85°C is not required.

Microchip Technology TC1185-2.7VCT713 maintains full temperature range compatibility (-40°C to 125°C) but operates with a reduced maximum input voltage specification of 6V compared to the 10V rating of the original part. This device is appropriate only for applications with input voltage limited to 6V maximum.

Torex Semiconductor Ltd XC6204B272MR-G and XC6209B272MR-G provide active production alternatives with 10V input voltage tolerance and enhanced PSRR characteristics. Operating temperature range is limited to -40°C to 85°C. The XC6209B272MR-G variant offers the lowest quiescent current (50 µA) among Torex options.

All substitute parts maintain ROHS3 compliance, EAR99 export classification, and SOT-23-5 package compatibility with the original device.

Frequently Asked Questions (FAQ)

Q: Can TPS76427DBVR directly replace TPS76327DBVT in production?

A: Yes. TPS76427DBVR is a parametric equivalent with identical output voltage (2.7V), output current (150mA), input voltage range (10V max), quiescent current (100 µA), and PSRR (60dB at 1kHz). Both devices operate across -40°C to 125°C and use SOT-23-5 packaging. The primary difference is product status: TPS76327DBVT is obsolete while TPS76427DBVR is in active production.

Q: What is the difference between TPS76427DBVR and TPS76427DBVT?

A: Both parts are parametrically identical. The difference is packaging format: DBVR indicates Cut Tape & Digi-Reel packaging, while DBVT indicates Tape & Reel packaging. Selection depends on procurement and assembly requirements.

Q: Why do ABLIC parts have lower quiescent current?

A: S-1200B27-M5T1U and S-L2980A27MC-TF-U are designed with ultra-low quiescent current specifications (1 µA) compared to TPS76327DBVT (100 µA). This represents a different design approach optimized for battery-powered or low-power standby applications. The trade-off is a reduced operating temperature range (-40°C to 85°C versus -40°C to 125°C).

Q: Can I use TC1185-2.7VCT713 if my input voltage exceeds 6V?

A: No. TC1185-2.7VCT713 has a maximum input voltage specification of 6V. Using this device with input voltages above 6V violates the absolute maximum ratings and may cause device failure. Use TPS76427DBVR, TPS76427DBVT, or Torex alternatives (XC6204B272MR-G, XC6209B272MR-G) for applications requiring 10V input tolerance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and are classified as EAR99 for export purposes, matching the regulatory status of the original TPS76327DBVT device.

Q: What is the impact of different PSRR values on circuit performance?

A: PSRR (Power Supply Rejection Ratio) measures the regulator's ability to reject input voltage ripple. Higher PSRR values indicate better noise rejection. TPS76327DBVT and TPS76427 variants specify 60dB at 1kHz, while ABLIC and Torex alternatives specify 70dB. The 10dB difference represents approximately 3.16x better ripple rejection with substitute parts, beneficial for noise-sensitive analog circuits.

Q: Which substitute offers the best overall compatibility?

A: TPS76427DBVR and TPS76427DBVT provide the highest compatibility with identical electrical specifications, full temperature range operation, and active production status. These Texas Instruments parts are direct functional replacements requiring no circuit redesign.

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