XC6221A3127R-G Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The XC6221A3127R-G is an active linear voltage regulator IC manufactured by Torex Semiconductor Ltd, classified as a Power Management (PMIC) component. This device provides a fixed positive output of 3.1V at 200mA with integrated enable control and over-current protection. The part is currently in active production status with 7,711 units in stock inventory.

Substitute parts are identified when design requirements permit alternative components that maintain functional compatibility within the specified electrical and mechanical parameters. The XC6215B3127R-G serves as a parametric equivalent for applications where the differing electrical characteristics remain within acceptable design tolerances.

Substiute Parts

XC6221A3127R-G

Torex Semiconductor LtdIn Stock: 7746XC6221A3127R-G Datasheet

Current PartRFQ

XC6215B3127R-G

Torex Semiconductor LtdIn Stock: 950XC6215B3127R-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the XC6221A3127R-G is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Output voltage (fixed): 3.1V
• Output current capability: 200mA
• Input voltage maximum: 6V
• Package type: 4-XDFN (4-USPN 0.90x1.2)
• Mounting type: Surface Mount
• Operating temperature range: -40°C to 85°C
• Control features: Enable function
• Protection features: Over-current protection
• Compliance: RoHS3, REACH Unaffected, MSL 1

Allowable Parameter Variations: Substitute parts may differ in the following parameters while maintaining functional compatibility:

• Voltage dropout (maximum): Variation permitted if within design margin
• Quiescent current (Iq): Variation permitted if power budget allows
• PSRR (Power Supply Rejection Ratio): Variation permitted if noise performance requirements are met

The XC6215B3127R-G qualifies as a substitute based on identical output voltage, current, input voltage, package, mounting, temperature range, control features, and protection features. Differences in dropout voltage and quiescent current represent the primary electrical distinctions.

Parameter Comparison

Engineering Selection Recommendations

Both the XC6221A3127R-G and XC6215B3127R-G are active production components from Torex Semiconductor Ltd with identical RoHS3 compliance and REACH unaffected status. Both devices carry MSL 1 (unlimited moisture sensitivity level), indicating no moisture-related handling restrictions.

Primary Selection Criteria:

The XC6221A3127R-G exhibits superior dropout voltage performance (0.14V @ 100mA) compared to the XC6215B3127R-G (0.42V @ 100mA). This characteristic is relevant for applications operating near the minimum input voltage threshold or requiring minimal headroom between input and output rails.

The XC6215B3127R-G demonstrates significantly lower quiescent current consumption (1.5µA versus 50µA), making it advantageous for battery-powered or ultra-low-power standby applications where supply current draw during idle states is a design constraint.

The XC6221A3127R-G provides specified PSRR of 70dB at 1kHz, whereas the XC6215B3127R-G does not provide this specification. Applications requiring documented noise rejection performance should reference the XC6221A3127R-G specification.

Both parts are suitable for 3.1V fixed output applications with 200mA load capability, identical package footprints, and matching temperature operating ranges. Selection between these parts depends on whether dropout voltage performance, quiescent current efficiency, or noise rejection characteristics are prioritized within the specific application design.

Frequently Asked Questions (FAQ)

Q: Can the XC6215B3127R-G directly replace the XC6221A3127R-G on an existing PCB?

A: Yes. Both devices use identical 4-XDFN (4-USPN 0.90x1.2) packages with surface mount mounting type. The physical footprint and pin configuration are identical, permitting direct PCB substitution without layout modification.

Q: What is the significance of the 0.28V difference in dropout voltage between these parts?

A: The XC6221A3127R-G has a maximum dropout voltage of 0.14V at 100mA, while the XC6215B3127R-G has 0.42V at the same current. In applications where input voltage approaches the 6V maximum specification, the lower dropout voltage of the XC6221A3127R-G ensures more stable regulation. The XC6215B3127R-G requires greater headroom between input and output voltages.

Q: Which part should be selected for battery-powered applications?

A: The XC6215B3127R-G is preferable for battery-powered designs due to its quiescent current of 1.5µA compared to 50µA for the XC6221A3127R-G. Lower quiescent current directly reduces standby power consumption and extends battery life in applications where the regulator remains enabled during idle periods.

Q: Are both parts compliant with current environmental and regulatory standards?

A: Yes. Both the XC6221A3127R-G and XC6215B3127R-G are RoHS3 compliant and REACH unaffected. Both carry MSL 1 rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: What does the PSRR specification indicate, and why is it specified for only one part?

A: PSRR (Power Supply Rejection Ratio) measures the regulator's ability to reject noise and ripple on the input supply from appearing at the output. The XC6221A3127R-G specifies 70dB at 1kHz. The XC6215B3127R-G does not provide this specification in the available data. Applications requiring documented noise rejection should use the XC6221A3127R-G or obtain PSRR data from the manufacturer for the XC6215B3127R-G.

Q: Are there any differences in the enable control function between these parts?

A: Both parts include enable control features and over-current protection. No functional differences in control implementation are specified in the provided data.

Q: What is the inventory status for each part?

A: The XC6221A3127R-G has 7,711 units in stock. The XC6215B3127R-G has 848 units in stock. Both are active production components available for immediate procurement.