RT9161-15GX Equivalent & Substitute Parts

Part Overview

The RT9161-15GX is a linear voltage regulator IC manufactured by Richtek USA Inc., designed to deliver a fixed 1.5V output at 300mA in a surface mount SOT-89-3 package. This device is classified as a Power Management (PMIC) component and maintains Active product status. Linear voltage regulators of this specification are essential in applications requiring stable, low-noise power delivery with minimal component count. Substitute parts are identified to provide design flexibility, supply chain alternatives, and compatibility with varying system requirements.

Substiute Parts

RT9161-15GX

Richtek USA Inc.In Stock: 773RT9161-15GX Datasheet

Current PartRFQ

AP130-15YG-13

Diodes IncorporatedIn Stock: 2818AP130-15YG-13 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT9161-15GX are identified based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:

• Package Compatibility: Both main and substitute parts must use TO-243AA (SOT-89-3) surface mount packaging to ensure PCB layout compatibility.
• Output Voltage: Fixed 1.5V output is mandatory for functional equivalence.
• Output Current: 300mA output current capacity is required.
• Output Configuration: Positive output configuration must be maintained.
• Regulatory Compliance: RoHS3 compliance is required for environmental and supply chain standards.
• Product Status: Active status ensures ongoing availability and manufacturer support.

The AP130-15YG-13 manufactured by Diodes Incorporated meets all substitution criteria. While this part exhibits different maximum input voltage (5.5V vs. 12V) and operating temperature range (-40°C ~ 85°C vs. -40°C ~ 125°C), these differences do not prevent substitution in applications where the lower specifications are acceptable.

Parameter Comparison

Engineering Selection Recommendations

Both the RT9161-15GX and AP130-15YG-13 are Active products with ROHS3 compliance, ensuring regulatory alignment and supply chain continuity. Selection between these parts should be based on application-specific input voltage and temperature requirements.

The RT9161-15GX is suitable for applications requiring input voltages up to 12V and operating temperatures up to 125°C (junction temperature). The AP130-15YG-13 is suitable for applications with input voltages limited to 5.5V and operating temperatures up to 85°C (ambient temperature). The AP130-15YG-13 provides additional short circuit protection and lower dropout voltage (0.5V vs. 0.6V), which may benefit power efficiency in current-limited applications.

Frequently Asked Questions (FAQ)

Q: Can the AP130-15YG-13 replace the RT9161-15GX in all applications?

A: The AP130-15YG-13 is a functional substitute only in applications where the input voltage does not exceed 5.5V and the operating temperature does not exceed 85°C. Applications requiring higher input voltages or higher temperature operation must use the RT9161-15GX.

Q: Are the package dimensions identical between these parts?

A: Both parts use the TO-243AA (SOT-89-3) package, ensuring identical PCB footprint and mounting compatibility.

Q: What is the difference in dropout voltage between these regulators?

A: The RT9161-15GX has a maximum dropout voltage of 0.6V at 300mA, while the AP130-15YG-13 has a maximum dropout voltage of 0.5V at 300mA. The lower dropout voltage of the AP130-15YG-13 may reduce power dissipation in applications with tight input-to-output voltage margins.

Q: Do both parts provide the same protection features?

A: Both parts include Over Current and Over Temperature protection. The AP130-15YG-13 additionally includes Short Circuit protection, providing enhanced fault tolerance.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory standards.