XC6221A10AMR-G Equivalent & Substitute Parts

Part Overview

The XC6221A10AMR-G is an active linear voltage regulator IC manufactured by Torex Semiconductor Ltd, classified as a Power Management (PMIC) component. This device delivers a fixed positive output of 1.05V at 200mA maximum current with a maximum input voltage of 6V. The regulator features enable control, over-current and short-circuit protection, and operates across the industrial temperature range of -40°C to 85°C. Packaged in SOT-25-5 surface-mount configuration, this component is ROHS3 compliant and currently in active production status. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and functional characteristics that permit direct replacement in circuit applications.

Substiute Parts

XC6221A10AMR-G

Torex Semiconductor LtdIn Stock: 759XC6221A10AMR-G Datasheet

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AP2127K-1.0TRG1

Diodes IncorporatedIn Stock: 2975AP2127K-1.0TRG1 Datasheet

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AP7331-10WG-7

Diodes IncorporatedIn Stock: 3313AP7331-10WG-7 Datasheet

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BU10TD3WG-TR

Rohm SemiconductorIn Stock: 44024BU10TD3WG-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the XC6221A10AMR-G are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Output voltage range compatibility (fixed 1.0V to 1.05V output)
• Output current capability (minimum 200mA)
• Maximum input voltage (6V or greater)
• Operating temperature range (-40°C to 85°C minimum)
• Surface-mount packaging in SOT-23-5, SOT-25, or 5-SSOP configurations
• Enable control feature (where applicable)
• Over-current and thermal protection
• ROHS3 compliance and REACH unaffected status

Substitution Logic: Parts are grouped as direct substitutes when they maintain the specified output voltage within acceptable tolerance, support the required output current, operate within the same temperature range, and utilize compatible surface-mount packages. Voltage dropout characteristics and quiescent current variations are secondary considerations that do not preclude substitution but may affect circuit performance in low-headroom or battery-powered applications.

Parameter Comparison

Engineering Selection Recommendations

AP2127K-1.0TRG1 (Diodes Incorporated): This substitute provides 300mA output current capability, exceeding the 200mA requirement of the XC6221A10AMR-G. The output voltage is 1.0V, which is 50mV lower than the main part. This device lacks an enable control feature, which may limit functionality in applications requiring shutdown control. The higher quiescent current (90 µA versus 50 µA) and increased voltage dropout (1.5V @ 300mA) result in greater power dissipation. MSL rating of 3 requires moisture control during storage and handling. ROHS3 compliance and REACH unaffected status are maintained. This substitute is suitable for applications where enable control is not required and higher current capacity is beneficial.

AP7331-10WG-7 (Diodes Incorporated): This substitute maintains the SOT-25 package format, providing direct pin compatibility with the XC6221A10AMR-G. Output current capability is 300mA, exceeding the 200mA specification. The output voltage is 1.0V, 50mV lower than the main part. Enable control feature is present, matching the control capability of the main device. Quiescent current is 75 µA, higher than the main part but lower than the AP2127K-1.0TRG1. Voltage dropout specification is not provided. MSL rating of 1 (Unlimited) matches the main part, eliminating moisture sensitivity concerns. ROHS3 compliance and REACH unaffected status are maintained. This substitute offers the closest functional alignment with the main part.

BU10TD3WG-TR (Rohm Semiconductor): This substitute matches the 200mA output current specification of the XC6221A10AMR-G exactly. The output voltage is 1.0V, 50mV lower than the main part. Enable control feature is present. Voltage dropout is 1.1V @ 200mA, higher than the main part's 0.65V @ 100mA. Quiescent current is 60 µA, slightly higher than the main part. PSRR is 70dB (1kHz), matching the main part specification. The 5-SSOP package differs from the SOT-25-5 of the main part, requiring PCB layout modification. MSL rating of 1 (Unlimited) matches the main part. ROHS3 compliance and REACH unaffected status are maintained. This substitute is suitable for applications where package footprint modification is acceptable.

All three substitute parts maintain active product status, ROHS3 compliance, and REACH unaffected designation, confirming regulatory and environmental compatibility with the XC6221A10AMR-G.

Frequently Asked Questions (FAQ)

Q: Can the AP2127K-1.0TRG1 replace the XC6221A10AMR-G in all applications?

A: The AP2127K-1.0TRG1 provides higher output current (300mA versus 200mA) and operates within the same temperature range and input voltage specifications. However, this substitute lacks an enable control feature present in the main part. Applications requiring shutdown or enable control functionality must use the AP7331-10WG-7 or BU10TD3WG-TR instead. The output voltage difference of 50mV (1.0V versus 1.05V) must be evaluated against circuit tolerance requirements.

Q: What is the significance of the MSL rating difference between the main part and AP2127K-1.0TRG1?

A: The XC6221A10AMR-G and AP7331-10WG-7 have MSL rating 1 (Unlimited), permitting indefinite storage without moisture control. The AP2127K-1.0TRG1 has MSL rating 3 (168 Hours), requiring that the component be used within 168 hours of package opening or stored in a controlled moisture environment. This affects supply chain handling, storage procedures, and shelf-life management but does not impact electrical performance after installation.

Q: Are the package differences between SOT-25-5, SOT-23-5, and 5-SSOP significant for substitution?

A: Package differences require PCB layout modification. The XC6221A10AMR-G uses SOT-25-5 (SC-74A, SOT-753). The AP2127K-1.0TRG1 uses SOT-23-5, which has a smaller footprint. The AP7331-10WG-7 uses SOT-25, which is compatible with SOT-25-5 layouts. The BU10TD3WG-TR uses 5-SSOP, requiring new PCB design. Direct footprint compatibility exists only between the main part and AP7331-10WG-7.

Q: How do voltage dropout differences affect circuit performance?

A: The XC6221A10AMR-G specifies 0.65V dropout at 100mA. The BU10TD3WG-TR specifies 1.1V dropout at 200mA, and the AP2127K-1.0TRG1 specifies 1.5V dropout at 300mA. Higher dropout voltage reduces the minimum input voltage required to maintain regulation and increases power dissipation as heat. Applications with low input voltage headroom or thermal constraints must account for these differences.

Q: Which substitute part provides the closest electrical match to the XC6221A10AMR-G?

A: The AP7331-10WG-7 provides the closest functional alignment, offering enable control, compatible SOT-25 packaging, MSL rating 1 (Unlimited), and PSRR performance comparable to the main part. The primary difference is the 50mV lower output voltage (1.0V versus 1.05V) and higher quiescent current (75 µA versus 50 µA).

Q: Can these substitute parts be used interchangeably on the same PCB?

A: The AP7331-10WG-7 can be used directly on PCBs designed for the XC6221A10AMR-G due to SOT-25 package compatibility. The AP2127K-1.0TRG1 (SOT-23-5) and BU10TD3WG-TR (5-SSOP) require PCB layout modifications. Pin-to-pin functional compatibility exists for all three substitutes, but physical footprint differences must be addressed during design or rework.

Q: Are all substitute parts compliant with the same regulatory standards as the main part?

A: All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the XC6221A10AMR-G. All operate within the -40°C to 85°C industrial temperature range. ECCN and HTSUS classifications are identical across all parts, confirming export and tariff compatibility.