RT9166-30GVL Equivalent & Substitute Parts

Part Overview

The RT9166-30GVL is a linear voltage regulator IC manufactured by Richtek USA Inc., classified as a Power Management (PMIC) component. This device delivers a fixed 3V output at 300mA maximum current in a compact SOT-23-3L surface mount package. The regulator is designed for applications requiring low-dropout voltage regulation with integrated over-current and over-temperature protection. The part is currently in active production status with substantial inventory availability (1,000,200 pieces in stock). Equivalent and substitute parts are identified based on matching electrical specifications, output configuration, and mechanical compatibility to support component sourcing flexibility and supply chain continuity.

Substiute Parts

RT9166-30GVL

Richtek USA Inc.In Stock: 1000255RT9166-30GVL Datasheet

Current PartRFQ

AP130-30RG-7

Diodes IncorporatedIn Stock: 9249AP130-30RG-7 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT9166-30GVL are identified based on the following critical electrical and mechanical parameters:

• Fixed output voltage of 3V
• Maximum output current of 300mA
• Maximum input voltage of 5.5V
• Positive output configuration
• Surface mount package compatibility (TO-236-3, SC-59, SOT-23-3 family)
• Operating temperature range of -40°C to 85°C
• Protection features including over-current and over-temperature protection
• Active product status and regulatory compliance (ROHS3, REACH Unaffected)

The AP130-30RG-7 manufactured by Diodes Incorporated meets these substitution criteria. Both devices share identical output voltage, output current rating, input voltage maximum, output configuration, package family, operating temperature range, and regulatory compliance status. Differences in quiescent current, dropout voltage, PSRR specification, and MSL rating do not prevent functional substitution when these parameters are acceptable for the target application.

Parameter Comparison

Engineering Selection Recommendations

Both the RT9166-30GVL and AP130-30RG-7 are active production devices with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution. The devices are electrically and mechanically compatible for applications requiring a fixed 3V output at 300mA in the TO-236-3/SC-59/SOT-23-3 package family.

Selection between these parts should be based on application-specific requirements regarding dropout voltage performance, quiescent current consumption, and PSRR characteristics. The RT9166-30GVL offers lower typical dropout voltage (0.23V versus 0.5V) and higher PSRR at 1kHz (55dB versus 58dB at 100Hz). The AP130-30RG-7 provides lower quiescent current (100µA versus 300µA), improved short-circuit protection, and lower moisture sensitivity level (MSL 1 versus MSL 3). Both devices maintain identical output voltage, output current, input voltage maximum, and operating temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can the AP130-30RG-7 directly replace the RT9166-30GVL in existing designs?

A: Yes. Both devices share identical output voltage (3V), output current (300mA), input voltage maximum (5.5V), output configuration (positive), package family (TO-236-3/SC-59/SOT-23-3), and operating temperature range (-40°C to 85°C). Pin-to-pin compatibility exists within the TO-236-3/SC-59/SOT-23-3 package family. Verify that application-specific performance requirements for dropout voltage, quiescent current, and PSRR are met by the substitute device.

Q: What are the key differences between these two regulators?

A: The RT9166-30GVL features lower typical dropout voltage (0.23V at 300mA) and higher PSRR at 1kHz (55dB). The AP130-30RG-7 provides lower quiescent current consumption (100µA versus 300µA), includes short-circuit protection, and has a lower moisture sensitivity level (MSL 1 versus MSL 3). Both devices offer identical fixed 3V output and 300mA current rating.

Q: Are there package compatibility concerns when substituting these parts?

A: Both devices use the same package family designation (TO-236-3, SC-59, SOT-23-3). The RT9166-30GVL is supplied in SOT-23-3L packaging, while the AP130-30RG-7 is supplied in SC-59R packaging. These are equivalent package designations within the same family with identical pin configurations and mechanical dimensions. No PCB layout modifications are required.

Q: What regulatory compliance applies to both devices?

A: Both the RT9166-30GVL and AP130-30RG-7 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use in regulated markets.

Q: Which device should be selected for low-power applications?

A: The AP130-30RG-7 is preferable for applications prioritizing low quiescent current consumption, offering 100µA versus 300µA for the RT9166-30GVL. This difference becomes significant in battery-powered or always-on standby applications where quiescent current directly impacts power consumption.

Q: Which device offers better noise performance?

A: The AP130-30RG-7 provides higher PSRR at 58dB (measured at 100Hz) compared to the RT9166-30GVL at 55dB (measured at 1kHz). PSRR measurement frequency differs between devices; direct comparison requires application-specific frequency analysis.