TLV70228PDBVR Equivalent & Substitute Parts

Part Overview

The TLV70228PDBVR is a linear voltage regulator IC from Texas Instruments, delivering a fixed 2.8V output at 300mA in an SOT-23-5 surface mount package. This device is classified as Active product status and is widely used in power management applications requiring low-dropout regulation with integrated protection features. Substitute parts are identified when design requirements necessitate alternative sourcing, packaging formats, or when primary inventory becomes unavailable while maintaining functional and electrical compatibility within specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Output Voltage (Fixed)	2.8V	V
Output Current	300mA	mA
Input Voltage (Max)	5.5V	V
Dropout Voltage @ 300mA	0.38V	V
Quiescent Current	55µA	µA
Package	SOT-23-5	—
Operating Temperature	-40°C to 125°C	°C
Protection Features	Over Current, Over Temperature, Reverse Polarity, UVLO	—

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical electrical specifications and output current rating (300mA at 2.8V). These parts differ only in packaging format (Tape & Reel vs. Cut Tape) and are direct functional replacements. Key matching parameters: Output Voltage (2.8V fixed), Output Current (300mA), Input Voltage Max (5.5V), Dropout Voltage (0.38V @ 300mA), Operating Temperature (-40°C to 125°C), and SOT-23-5 package compatibility.

Manufacturer Recommended Substitutes provide 2.8V fixed output in SOT-23-5 packaging but with reduced output current ratings (150mA to 200mA). These are suitable for applications where load current does not exceed the substitute part's maximum rating. Key matching parameters: Output Voltage (2.8V fixed), Input Voltage compatibility (5.5V to 6V), SOT-23-5 package, and operating temperature range overlap (-40°C minimum).

Alternative Manufacturers include devices from Microchip Technology, ROHM Semiconductor, onsemi, and Richtek USA Inc., all delivering 2.8V fixed output in compatible packages. Selection depends on output current requirement, dropout voltage performance, and product lifecycle status.

Parameter Comparison

Part Number	Manufacturer	Output Current	Dropout Voltage	Quiescent Current	Operating Temp	Package	Product Status	Packaging Format
TLV70228PDBVR	Texas Instruments	300mA	0.38V @ 300mA	55µA	-40°C to 125°C	SOT-23-5	Active	Tape & Reel
TLV70228DBVR	Texas Instruments	300mA	0.38V @ 300mA	55µA	-40°C to 125°C	SOT-23-5	Active	Cut Tape & Digi-Reel
TLV70228DBVT	Texas Instruments	300mA	0.38V @ 300mA	55µA	-40°C to 125°C	SOT-23-5	Active	Cut Tape & Digi-Reel
TLV70228PDBVT	Texas Instruments	300mA	0.38V @ 300mA	55µA	-40°C to 125°C	SOT-23-5	Active	Tape & Reel
LP3990MF-2.8/NOPB	Texas Instruments	150mA	0.2V @ 150mA	80µA	-40°C to 85°C	SOT-23-5	Active	Tape & Reel
LP5951MF-2.8/NOPB	Texas Instruments	150mA	0.35V @ 150mA	55µA	-40°C to 125°C	SOT-23-5	Active	Tape & Reel
BU28SD2MG-MTR	ROHM Semiconductor	200mA	0.15V @ 100mA	80µA	-40°C to 105°C	5-SSOP	Active	Tape & Reel
BU28UC3WG-TR	ROHM Semiconductor	300mA	0.22V @ 300mA	90µA	-40°C to 85°C	5-SSOP	Not For New Designs	Tape & Reel
MIC5307-2.8YD5-TR	Microchip Technology	300mA	0.25V @ 300mA	30µA	-40°C to 125°C	TSOT-23-5	Active	Cut Tape
NCV8703SN28T1G	onsemi	300mA	—	20µA	-40°C to 125°C	5-TSOP	Obsolete	—
RT9013-28GB	Richtek USA Inc.	500mA	0.4V @ 500mA	50µA	-40°C to 85°C	SOT-23-5	Active	Cut Tape & Digi-Reel

Engineering Selection Recommendations

Direct Parametric Replacements (Preferred): TLV70228DBVR, TLV70228DBVT, and TLV70228PDBVT are identical electrical equivalents differing only in packaging format. These maintain all protection features (Over Current, Over Temperature, Reverse Polarity, UVLO) and operating temperature range. Selection between these variants depends solely on procurement packaging requirements (Tape & Reel vs. Cut Tape & Digi-Reel).

Texas Instruments LP Series (Current-Limited Applications): LP3990MF-2.8/NOPB and LP5951MF-2.8/NOPB are suitable when application load current does not exceed 150mA. LP5951MF-2.8/NOPB maintains the full -40°C to 125°C operating range and includes Over Current protection, making it preferable to LP3990MF-2.8/NOPB for temperature-critical designs.

ROHM Semiconductor BU28 Series: BU28SD2MG-MTR provides 200mA output with superior dropout voltage (0.15V @ 100mA) and carries AEC-Q100 automotive qualification. BU28UC3WG-TR matches 300mA output but is marked "Not For New Designs" and has reduced operating temperature range (-40°C to 85°C), limiting its use to legacy system support.

Microchip MIC5307-2.8YD5-TR: Delivers 300mA output with lowest quiescent current (30µA) and maintains -40°C to 125°C operating range. TSOT-23-5 package is mechanically compatible with SOT-23-5 footprints. Suitable for power-sensitive applications.

Richtek RT9013-28GB: Provides highest output current (500mA) in SOT-23-5 package with Active product status. Operating temperature limited to -40°C to 85°C. Appropriate for high-current applications where thermal management is adequate.

onsemi NCV8703SN28T1G: Obsolete product status disqualifies this part for new designs. Existing inventory may support legacy system maintenance only.

Frequently Asked Questions (FAQ)

Q: Can I use LP3990MF-2.8/NOPB or LP5951MF-2.8/NOPB as direct replacements for TLV70228PDBVR?

A: These parts are functionally compatible only if your application load current does not exceed 150mA. The TLV70228PDBVR is rated for 300mA output; the LP series are rated for 150mA. If your circuit draws more than 150mA, these substitutes will not function properly. Both maintain 2.8V fixed output and SOT-23-5 packaging. LP5951MF-2.8/NOPB is preferred over LP3990MF-2.8/NOPB due to matching operating temperature range (-40°C to 125°C).

Q: What is the difference between TLV70228PDBVR and TLV70228DBVR?

A: These parts are electrically identical. The difference is packaging format: PDBVR uses Tape & Reel (TR) packaging, while DBVR uses Cut Tape (CT) & Digi-Reel. Both are Active status and available in high inventory. Selection depends on your procurement and assembly process requirements.

Q: Is MIC5307-2.8YD5-TR compatible with my TLV70228PDBVR design?

A: Yes, MIC5307-2.8YD5-TR is electrically compatible. It delivers 300mA at 2.8V with lower quiescent current (30µA vs. 55µA) and slightly better dropout voltage (0.25V vs. 0.38V @ 300mA). The TSOT-23-5 package is mechanically compatible with SOT-23-5 footprints. Operating temperature range matches (-40°C to 125°C). This substitution is suitable for power-optimized designs.

Q: Why is BU28UC3WG-TR marked "Not For New Designs"?

A: BU28UC3WG-TR carries a "Not For New Designs" product status, indicating the manufacturer is phasing out this device. While it matches 300mA output and includes Over Current and Over Temperature protection, its reduced operating temperature range (-40°C to 85°C vs. -40°C to 125°C) and limited future availability make it unsuitable for new product development. Use only for legacy system support.

Q: Can I use RT9013-28GB for higher current applications?

A: RT9013-28GB provides 500mA output, exceeding the TLV70228PDBVR's 300mA rating. It is suitable for applications requiring higher load current. However, its operating temperature range is limited to -40°C to 85°C compared to the TLV70228PDBVR's -40°C to 125°C. Verify your application's temperature requirements before substitution.

Q: What does "Parametric Equivalent" mean in the context of these substitutes?

A: A parametric equivalent maintains identical electrical specifications: same output voltage (2.8V), output current (300mA), input voltage rating (5.5V max), dropout voltage (0.38V @ 300mA), quiescent current (55µA), protection features, and operating temperature range (-40°C to 125°C). Parametric equivalents differ only in packaging format (Tape & Reel vs. Cut Tape) and are direct functional replacements requiring no circuit modifications.

Q: Are all these parts RoHS3 compliant?

A: Yes, all listed substitute parts carry RoHS3 compliance status. All are also REACH Unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001.

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