TPS73225MDBVREP Equivalent & Substitute Parts

Part Overview

The TPS73225MDBVREP is a linear voltage regulator IC from Texas Instruments, delivering a fixed 2.5V output at 250mA in a SOT-23-5 surface mount package. This device is classified as a Power Management IC (PMIC) and is currently in active production status. The regulator includes integrated protection features for over-current, over-temperature, short-circuit, and reverse-polarity conditions, with an enable control feature for power management applications.

Equivalent and substitute parts are identified to support design flexibility, inventory optimization, and supply chain continuity. Substitutes must maintain compatibility across critical electrical parameters including output voltage, package form factor, and protection characteristics.

Substiute Parts

TPS73225MDBVREP

Texas InstrumentsIn Stock: 3453TPS73225MDBVREP Datasheet

Current PartRFQ

RT9193-25GB

Richtek USA Inc.In Stock: 86160RT9193-25GB Datasheet

MFR RecommendedRFQ

RT9193-28GB

Richtek USA Inc.In Stock: 105450RT9193-28GB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS73225MDBVREP are selected based on the following critical parameters that determine functional equivalence:

• Output Voltage: Substitute must deliver the same fixed output voltage (2.5V) or be rated for the same voltage class
• Package Compatibility: All substitutes must use SOT-23-5 (SC-74A, SOT-753) surface mount package for PCB layout compatibility
• Output Current Capability: Substitute current rating must meet or exceed the 250mA requirement
• Input Voltage Range: Maximum input voltage must be 5.5V or higher to maintain compatibility with the supply rail
• Protection Features: Substitutes must include over-current and over-temperature protection as minimum requirements
• Product Status: Active production status ensures ongoing availability and support

The identified substitutes are Richtek USA Inc. RT9193-25GB and RT9193-28GB. The RT9193-25GB maintains the 2.5V output voltage specification with enhanced current capability (300mA). The RT9193-28GB operates at 2.8V output, which represents a different voltage class and is suitable only for applications where 2.8V output is acceptable.

Parameter Comparison

Engineering Selection Recommendations

RT9193-25GB is the primary substitute for TPS73225MDBVREP. Both devices maintain identical 2.5V output voltage specification and SOT-23-5 package compatibility. The RT9193-25GB provides higher output current capability (300mA vs. 250mA), lower quiescent current (130 µA vs. 550 µA), and superior PSRR performance (70dB ~ 50dB vs. 58dB ~ 37dB). Both devices are ROHS3 compliant and in active production. The primary design consideration is the reduced operating temperature range of the RT9193-25GB (-40°C to 125°C vs. -55°C to 125°C) and the higher moisture sensitivity level (MSL 3 vs. MSL 1), which may impact storage and handling requirements.

RT9193-28GB is a secondary substitute suitable only for applications where 2.8V output voltage is functionally acceptable. This device shares the same package form factor and protection features but operates at a different voltage class. Selection of this part requires confirmation that the 2.8V output does not violate circuit design specifications.

Both Richtek substitutes lack reverse-polarity protection, which is present in the TPS73225MDBVREP. Applications requiring reverse-polarity protection must retain the original TPS73225MDBVREP or implement external protection circuitry.

Frequently Asked Questions (FAQ)

Q: Can RT9193-25GB be used as a direct replacement for TPS73225MDBVREP?

A: Yes, for applications where the operating temperature range -40°C to 125°C is acceptable and reverse-polarity protection is not required. The RT9193-25GB maintains the same 2.5V output voltage and SOT-23-5 package. Verify that the higher moisture sensitivity level (MSL 3) aligns with your storage and assembly processes.

Q: What is the difference between RT9193-25GB and RT9193-28GB?

A: The primary difference is output voltage: RT9193-25GB delivers 2.5V, while RT9193-28GB delivers 2.8V. Both share identical current ratings (300mA), package form factor, and protection features. Selection depends on the required output voltage for your application.

Q: Does the higher output current of the substitutes (300mA vs. 250mA) affect compatibility?

A: No. Higher current capability is a superset of the original specification and does not create compatibility issues. The circuit will draw only the current it requires, up to the device's maximum rating.

Q: Are there temperature range limitations when substituting with Richtek parts?

A: Yes. The RT9193-25GB and RT9193-28GB operate from -40°C to 125°C, compared to the TPS73225MDBVREP range of -55°C to 125°C. If your application requires operation below -40°C, the original TPS73225MDBVREP must be retained.

Q: What is the impact of the different moisture sensitivity levels?

A: The TPS73225MDBVREP has MSL 1 (unlimited shelf life), while Richtek substitutes have MSL 3 (168-hour limit after moisture exposure). MSL 3 components require baking before reflow soldering if the 168-hour window has elapsed since packaging. Verify your assembly process can accommodate this requirement.

Q: Are all three parts RoHS compliant?

A: Yes. The TPS73225MDBVREP, RT9193-25GB, and RT9193-28GB are all ROHS3 compliant and suitable for applications with RoHS requirements.

Q: What protection features are lost when substituting with Richtek parts?

A: The Richtek RT9193 series lacks reverse-polarity protection, which is present in the TPS73225MDBVREP. If reverse-polarity protection is required, external protection circuitry must be implemented or the original part must be retained.