TPS70628DBVR Equivalent & Substitute Parts

Part Overview

The TPS70628DBVR is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. It delivers 150mA output current at a fixed 2.8V output voltage with a maximum input voltage of 6.5V. The device is housed in a SOT-23-5 surface mount package and is classified as Active product status. Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different packaging or sourcing requirements while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	2.8V
Output Current	150mA
Input Voltage (Max)	6.5V
Voltage Dropout (Max)	1.54V @ 150mA
Output Configuration	Positive Fixed
Package Type	SOT-23-5 (SC-74A, SOT-753)
Operating Temperature Range	-40°C ~ 125°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the TPS70628DBVR are qualified based on the following critical parameters:

Fixed output voltage of 2.8V
Output current capability of 150mA minimum
Positive output configuration
Surface mount packaging compatible with SOT-23-5 footprint
Active product status
RoHS3 compliance

The TPS70628DBVR has two identified substitutes: TPS70628DBVT (parametric equivalent from Texas Instruments) and AP7354-28W5-7 (manufacturer-recommended alternative from Diodes Incorporated). Both maintain the core electrical specifications required for direct substitution in applications requiring a 2.8V, 150mA linear regulator.

Parameter Comparison

Parameter	TPS70628DBVR	TPS70628DBVT	AP7354-28W5-7
Manufacturer	Texas Instruments	Texas Instruments	Diodes Incorporated
Output Voltage (Fixed)	2.8V	2.8V	2.8V
Output Current	150mA	150mA	150mA
Input Voltage (Max)	6.5V	6.5V	5.5V
Voltage Dropout (Max)	1.54V @ 150mA	1.54V @ 150mA	0.4V @ 150mA
Output Configuration	Positive Fixed	Positive Fixed	Positive Fixed
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753
Supplier Device Package	SOT-23-5	SOT-23-5	SOT-25
Operating Temperature Range	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

TPS70628DBVT is a direct parametric equivalent to TPS70628DBVR, differing only in packaging format (Tape & Reel versus Cut Tape & Digi-Reel). Both devices are manufactured by Texas Instruments, share identical electrical specifications, and maintain the same operating temperature range and RoHS3 compliance. Selection between these two is determined by packaging and supply chain requirements.

AP7354-28W5-7 from Diodes Incorporated is a manufacturer-recommended substitute that meets the core functional requirements of 2.8V fixed output at 150mA. This device offers superior dropout voltage performance (0.4V versus 1.54V) and lower quiescent current (0.6µA versus 2.55µA). However, the maximum input voltage is reduced to 5.5V, and the operating temperature range is limited to -40°C ~ 85°C. Selection of AP7354-28W5-7 is appropriate for applications where the reduced input voltage and temperature range are acceptable and where improved efficiency from lower dropout voltage is beneficial. All three parts maintain Active product status and RoHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can TPS70628DBVT be used as a direct replacement for TPS70628DBVR?

A: Yes. TPS70628DBVT is a parametric equivalent with identical electrical specifications, output voltage, current rating, and operating temperature range. The only difference is packaging format (Tape & Reel versus Cut Tape & Digi-Reel). PCB footprint and electrical performance are equivalent.

Q: What are the key differences between TPS70628DBVR and AP7354-28W5-7?

A: Both devices provide 2.8V fixed output at 150mA and are housed in compatible SOT-23-5 packages. AP7354-28W5-7 has superior dropout voltage (0.4V versus 1.54V) and lower quiescent current. However, it has a lower maximum input voltage (5.5V versus 6.5V) and reduced operating temperature range (-40°C ~ 85°C versus -40°C ~ 125°C). Selection depends on application input voltage requirements and temperature operating conditions.

Q: Are all three parts RoHS3 compliant?

A: Yes. TPS70628DBVR, TPS70628DBVT, and AP7354-28W5-7 are all ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: What is the difference between SOT-23-5 and SOT-25 packages?

A: Both are surface mount packages with compatible footprints (SC-74A, SOT-753). The supplier device package designation (SOT-23-5 for Texas Instruments parts, SOT-25 for Diodes Incorporated part) reflects manufacturer nomenclature but represents the same physical package form factor suitable for PCB assembly.

Q: Which substitute should I select for a high-temperature application?

A: TPS70628DBVR or TPS70628DBVT are required for applications operating above 85°C, as both support -40°C ~ 125°C. AP7354-28W5-7 is limited to -40°C ~ 85°C and is not suitable for higher temperature environments.

Q: Which substitute offers the best efficiency?

A: AP7354-28W5-7 provides superior efficiency characteristics with dropout voltage of 0.4V and quiescent current of 0.6µA, compared to TPS70628DBVR/DBVT with 1.54V dropout and 2.55µA quiescent current. However, this advantage is only applicable within the AP7354-28W5-7 input voltage limit of 5.5V.

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