TLV75519PDBVR Equivalent & Substitute Parts

Part Overview

The TLV75519PDBVR is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This active product delivers 500mA output current with a fixed 1.9V output voltage in a compact SOT-23-5 surface mount package. The device is suitable for low-power applications requiring stable voltage regulation with integrated protection features. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements necessitate different electrical characteristics.

Substiute Parts

TLV75519PDBVR

Texas InstrumentsIn Stock: 3545TLV75519PDBVR Datasheet

Current PartRFQ

RT9081A-09GQZA(2)

Richtek USA Inc.In Stock: 2523RT9081A-09GQZA(2) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLV75519PDBVR are identified based on the following critical parameters that determine functional compatibility:

• Output current capability: 500mA minimum
• Input voltage range: 5.5V maximum
• Output configuration: Positive fixed voltage
• Surface mount technology
• Active product status
• RoHS3 compliance
• Enable control feature

The RT9081A-09GQZA(2) from Richtek USA Inc. qualifies as a substitute based on matching output current (500mA), input voltage rating (5.5V), positive fixed output configuration, surface mount packaging, active status, and RoHS3 compliance. Differences in output voltage, package form factor, and operating temperature range are noted in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Both the TLV75519PDBVR and RT9081A-09GQZA(2) are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for component selection.

The TLV75519PDBVR operates across a wider temperature range (-40°C to 125°C junction temperature) compared to the RT9081A-09GQZA(2) (-40°C to 85°C ambient temperature). Applications requiring operation above 85°C ambient should retain the TLV75519PDBVR.

The RT9081A-09GQZA(2) provides superior dropout voltage performance (0.25V versus 0.4V at 500mA) and higher PSRR (80dB versus 52dB), beneficial for noise-sensitive applications. However, the RT9081A-09GQZA(2) exhibits higher quiescent current (110 µA versus 31 µA), which may impact battery-powered designs.

Package form factor differs: TLV75519PDBVR uses SOT-23-5 while RT9081A-09GQZA(2) uses 6-ZADFN. PCB layout and thermal management considerations apply to each package type.

Output voltage differs (1.9V versus 0.9V). Substitution is only valid when the application circuit can accommodate the different output voltage specification.

Frequently Asked Questions (FAQ)

Q: Can the RT9081A-09GQZA(2) directly replace the TLV75519PDBVR in all applications?

A: Direct replacement is not universal. The RT9081A-09GQZA(2) has a different fixed output voltage (0.9V versus 1.9V), different package form factor (6-ZADFN versus SOT-23-5), and lower maximum operating temperature (85°C ambient versus 125°C junction). Substitution is valid only when the application circuit is designed for 0.9V output, the PCB layout accommodates the 6-ZADFN package, and operating temperature remains below 85°C ambient.

Q: What are the key electrical differences between these parts?

A: The RT9081A-09GQZA(2) provides lower dropout voltage (0.25V versus 0.4V) and higher power supply rejection ratio (80dB versus 52dB), making it superior for noise-sensitive applications. However, it draws higher quiescent current (110 µA versus 31 µA) and operates at a lower maximum temperature. Both parts deliver 500mA output current and accept 5.5V maximum input voltage.

Q: Are there package compatibility concerns?

A: Yes. The TLV75519PDBVR uses SOT-23-5 packaging while the RT9081A-09GQZA(2) uses 6-ZADFN (1.2x1.2). These packages have different pinouts, footprints, and thermal characteristics. PCB redesign is required for substitution.

Q: What is the moisture sensitivity impact?

A: The TLV75519PDBVR has MSL 1 (unlimited shelf life), while the RT9081A-09GQZA(2) has MSL 3 (168-hour limit after bag opening). The RT9081A-09GQZA(2) requires more stringent moisture control during storage and assembly.

Q: Which part should be selected for high-temperature applications?

A: The TLV75519PDBVR is rated to 125°C junction temperature, while the RT9081A-09GQZA(2) is rated to 85°C ambient temperature. For applications exceeding 85°C ambient, the TLV75519PDBVR is the appropriate choice.