TLV75719PDBVR Equivalent & Substitute Parts

Part Overview

The TLV75719PDBVR is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 1A output current with a fixed 1.9V output and operates across an input range up to 5.5V. The regulator features integrated protection mechanisms including current limiting, thermal shutdown, and under-voltage lockout (UVLO), making it suitable for low-power supply applications requiring stable voltage regulation. As an active product with full RoHS3 compliance and unlimited moisture sensitivity rating, substitute parts may be required due to design optimization, supply chain considerations, or application-specific performance requirements.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Part Number	TLV75719PDBVR
Category	Power Management (PMIC)
Package Type	SOT-23-5 (SC-74A)
Output Configuration	Positive Fixed
Output Voltage	1.9V
Output Current	1A
Input Voltage (Max)	5.5V
Dropout Voltage (Max)	0.8V @ 1A
Operating Temperature	-40°C to 125°C
Protection Features	Current Limit, Thermal Shutdown, UVLO
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the TLV75719PDBVR are evaluated based on the following critical parameters that determine functional compatibility:

Output Current Capability: The main part delivers 1A. Substitute parts must meet or exceed this current rating to maintain equivalent performance in the target application.

Output Voltage: The fixed 1.9V output is application-specific. Substitute parts with different fixed output voltages (such as 1.2V) are considered functional alternatives only when the application can tolerate the voltage difference.

Input Voltage Range: Maximum input voltage of 5.5V establishes the upper operating limit. Substitute parts must support this range.

Package Type: The SOT-23-5 package defines the physical footprint and pin configuration. Substitute parts in different packages (such as SOT-23-3) require PCB layout modifications.

Protection Features: Current limiting, thermal shutdown, and UVLO are core safety mechanisms. Substitute parts must include equivalent protection.

Operating Temperature Range: The -40°C to 125°C range defines the thermal operating envelope. Substitute parts with narrower ranges may not be suitable for all applications.

Compliance Standards: RoHS3 compliance and REACH status ensure regulatory alignment.

The RT9166-12GVL is listed as a substitute option; however, it operates at a different fixed output voltage (1.2V) and reduced output current (300mA), making it suitable only for applications where these parameter differences are acceptable.

Parameter Comparison

Parameter	TLV75719PDBVR	RT9166-12GVL
Manufacturer	Texas Instruments	Richtek USA Inc.
Category	Power Management (PMIC)	Power Management (PMIC)
Package Type	SOT-23-5	SOT-23-3L
Output Voltage	1.9V	1.2V
Output Current	1A	300mA
Input Voltage (Max)	5.5V	5.5V
Dropout Voltage (Max)	0.8V @ 1A	0.23V @ 300mA (Typ)
Operating Temperature	-40°C to 125°C	-40°C to 85°C
Protection Features	Current Limit, Thermal Shutdown, UVLO	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active

Engineering Selection Recommendations

Both the TLV75719PDBVR and RT9166-12GVL are active products with full RoHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current applications.

The TLV75719PDBVR is the primary selection for applications requiring 1.9V output at 1A current capacity with an extended operating temperature range to 125°C. The device's UVLO protection and higher current capability make it suitable for general-purpose low-voltage supply applications.

The RT9166-12GVL serves as a substitute only in applications where the output voltage can be adjusted to 1.2V and the maximum output current requirement does not exceed 300mA. The reduced operating temperature maximum of 85°C limits its use in high-temperature environments. The SOT-23-3L package requires different PCB layout considerations compared to the SOT-23-5 footprint.

Selection between these parts must be based on specific application requirements for output voltage, current capacity, and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the RT9166-12GVL directly replace the TLV75719PDBVR in my circuit?

A: Direct replacement is not possible without circuit modifications. The RT9166-12GVL has a different fixed output voltage (1.2V vs. 1.9V) and lower output current rating (300mA vs. 1A). Additionally, the package type differs (SOT-23-3L vs. SOT-23-5), requiring PCB layout changes. Substitution is only viable if your application can operate at 1.2V output and requires no more than 300mA current.

Q: What are the key parameters that determine if a substitute part is compatible?

A: Compatibility is determined by output voltage, output current capacity, input voltage range, package type, protection features, and operating temperature range. All of these parameters must align with application requirements for successful substitution.

Q: Does the RT9166-12GVL support the same temperature range as the TLV75719PDBVR?

A: No. The TLV75719PDBVR operates from -40°C to 125°C, while the RT9166-12GVL operates from -40°C to 85°C. Applications requiring operation above 85°C must use the TLV75719PDBVR.

Q: Are both parts RoHS3 compliant?

A: Yes, both the TLV75719PDBVR and RT9166-12GVL are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What protection features does each regulator include?

A: The TLV75719PDBVR includes current limiting, thermal shutdown, and under-voltage lockout (UVLO). The RT9166-12GVL includes over-current and over-temperature protection. Both provide essential safeguards, though the specific mechanisms differ.

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