XC6221B3127R-G Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The XC6221B3127R-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 1103 units in stock inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the same package footprint and functional requirements. Alternative models may be necessary due to inventory availability, lead time considerations, or specific application performance requirements while maintaining design compatibility.

Substiute Parts

XC6221B3127R-G

Torex Semiconductor LtdIn Stock: 1124XC6221B3127R-G Datasheet

Current PartRFQ

XC6215B3127R-G

Torex Semiconductor LtdIn Stock: 950XC6215B3127R-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the XC6221B3127R-G are identified based on strict equivalence across 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)
• Output configuration: Positive fixed
• Number of regulators: 1
• Control features: Enable function
• Protection features: Over-current protection
• Operating temperature range: -40°C ~ 85°C
• Mounting type: Surface Mount
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

Allowable Parameter Variations: Substitute parts may differ in voltage dropout characteristics and quiescent current specifications, provided all other electrical and mechanical parameters remain equivalent. These variations do not affect functional compatibility in standard applications.

The XC6215B3127R-G qualifies as a parametric equivalent based on full compliance with all mandatory matching parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the XC6221B3127R-G and XC6215B3127R-G are active production components from Torex Semiconductor Ltd with full ROHS3 compliance and MSL 1 moisture sensitivity rating. Both parts are suitable for direct substitution in applications requiring a 3.1V fixed output linear regulator at 200mA with enable control and over-current protection in a 4-XDFN surface mount package.

XC6221B3127R-G is the primary selection when lower voltage dropout performance is required. The 0.14V dropout specification at 100mA provides superior efficiency in applications with limited input voltage headroom.

XC6215B3127R-G is the alternative selection when lower quiescent current consumption is the priority. The 1.5 µA quiescent current specification reduces standby power dissipation compared to the 50 µA specification of the XC6221B3127R-G.

Both parts maintain identical electrical output specifications, control functionality, and thermal operating range. Selection between these equivalents depends on application-specific requirements for dropout voltage or quiescent current performance.

Frequently Asked Questions (FAQ)

Q: Can XC6215B3127R-G be used as a direct replacement for XC6221B3127R-G?

A: Yes. Both parts provide identical output voltage (3.1V), output current (200mA), input voltage rating (6V maximum), package footprint (4-XDFN), control features (Enable), and protection features (Over-current). The parts differ only in voltage dropout and quiescent current specifications, which are allowable variations for functional equivalence.

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

A: The XC6221B3127R-G specifies 0.14V maximum dropout at 100mA, while the XC6215B3127R-G specifies 0.42V maximum dropout at 100mA. Applications requiring operation with minimal input-to-output voltage differential should use the XC6221B3127R-G.

Q: What is the difference in quiescent current?

A: The XC6221B3127R-G draws 50 µA quiescent current, while the XC6215B3127R-G draws 1.5 µA quiescent current. Applications prioritizing low standby power consumption should use the XC6215B3127R-G.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 4-XDFN package with dimensions 0.90x1.2mm (4-USPN). PCB layout and footprint are identical, enabling direct substitution without design modification.

Q: Do both parts have the same operating temperature range?

A: Yes. Both parts operate across -40°C to 85°C ambient temperature range, providing identical thermal performance specifications.

Q: Are both parts RoHS compliant?

A: Yes. Both XC6221B3127R-G and XC6215B3127R-G are ROHS3 compliant with MSL 1 moisture sensitivity rating, meeting identical environmental and regulatory requirements.

Q: Which part should be selected for a new design?

A: Selection depends on application requirements. For designs requiring lower voltage dropout and better efficiency with limited input headroom, use XC6221B3127R-G. For designs requiring minimal standby current consumption, use XC6215B3127R-G. Both parts are active production components suitable for new designs.