RT9166-13GVL Equivalent & Substitute Parts

Part Overview

The RT9166-13GVL is a linear voltage regulator IC manufactured by Richtek USA Inc., designed to deliver a fixed 1.3V output at up to 300mA. This positive fixed output regulator operates across an input voltage range up to 5.5V with a maximum dropout voltage of 0.23V at 300mA. The device is housed in a SOT-23-3 surface mount package and is currently in active production status with 869 pieces available in stock. Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate alternative sourcing strategies.

Substiute Parts

RT9166-13GVL

Richtek USA Inc.In Stock: 925RT9166-13GVL Datasheet

Current PartRFQ

S-1206B13-M3T1U

ABLIC Inc.In Stock: 48261S-1206B13-M3T1U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT9166-13GVL is determined by the following critical parameters:

• Fixed output voltage of 1.3V
• Positive output configuration
• Single regulator output
• SOT-23-3 surface mount package
• Operating temperature range of -40°C to 85°C
• Active product status with current manufacturing support
• ROHS3 compliance

The S-1206B13-M3T1U from ABLIC Inc. qualifies as a substitute based on matching output voltage, output configuration, package type, operating temperature range, and regulatory compliance. Differences in maximum input voltage, dropout voltage characteristics, quiescent current, and output current capacity must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the RT9166-13GVL and S-1206B13-M3T1U are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing environments. The RT9166-13GVL provides higher output current capacity at 300mA with superior dropout voltage performance at 0.23V. The S-1206B13-M3T1U offers extended input voltage tolerance up to 6.5V and significantly lower quiescent current at 1.5 µA, making it suitable for applications prioritizing low standby power consumption. Selection between these devices depends on whether the application requires the higher current delivery and lower dropout characteristics of the RT9166-13GVL or the extended input voltage range and minimal quiescent current of the S-1206B13-M3T1U.

Frequently Asked Questions (FAQ)

Q: Can the S-1206B13-M3T1U directly replace the RT9166-13GVL in all applications?

A: Direct replacement is possible only when the application's maximum output current requirement does not exceed 250mA. The S-1206B13-M3T1U is rated for 250mA versus the RT9166-13GVL's 300mA. Additionally, the higher dropout voltage of the S-1206B13-M3T1U (0.73V @ 100mA) must be evaluated against the application's input voltage headroom requirements.

Q: Are the packages physically identical?

A: Both devices use the SOT-23-3 package, ensuring identical PCB footprint and pin configuration. No layout modifications are required for physical substitution.

Q: What are the compliance differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. The RT9166-13GVL has a Moisture Sensitivity Level (MSL) of 3 (168 Hours), while the S-1206B13-M3T1U has an MSL of 1 (Unlimited), indicating lower moisture sensitivity for the substitute part.

Q: How do the quiescent current specifications affect circuit design?

A: The S-1206B13-M3T1U draws only 1.5 µA of quiescent current compared to the RT9166-13GVL's 300 µA. In battery-powered or low-power standby applications, this 200-fold reduction in quiescent current can significantly extend operational life.

Q: What input voltage range should be considered for each device?

A: The RT9166-13GVL operates with a maximum input voltage of 5.5V, while the S-1206B13-M3T1U accepts up to 6.5V. Applications with input sources approaching or exceeding 5.5V require the S-1206B13-M3T1U to ensure safe operation.