XC6221D28AMR-G Equivalent & Substitute Parts

Part Overview

The XC6221D28AMR-G is a linear voltage regulator IC manufactured by Torex Semiconductor Ltd, classified as a Power Management (PMIC) component. This device provides a positive fixed output of 2.85V at 200mA in a surface-mount SOT-25 package. The regulator features an enable control function and over-current protection, operating across the industrial temperature range of -40°C to 85°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent substitute parts are identified based on matching electrical specifications, output configuration, and functional control features to ensure direct functional replacement in circuit applications.

Key Parameters

Parameter	Value
Output Configuration	Positive
Output Type	Fixed
Voltage - Output (Min/Fixed)	2.85V
Current - Output	200mA
Voltage - Input (Max)	6V
Voltage Dropout (Max)	0.17V @ 100mA
Control Features	Enable
Protection Features	Over Current
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	SC-74A, SOT-753
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the XC6221D28AMR-G are identified through parametric equivalence based on the following critical specifications:

Matching Criteria:

Fixed output voltage of 2.85V
Output current rating of 200mA
Positive output configuration
Enable control feature
Over-current protection
Surface-mount technology
Operating temperature range of -40°C to 85°C
ROHS3 compliance and MSL 1 rating

The S-1315A2J-M5T1U3 from ABLIC Inc. meets these functional and electrical requirements. While minor variations exist in maximum input voltage (5.5V versus 6V) and dropout voltage characteristics, the substitute maintains the core output specifications and control functionality necessary for equivalent circuit operation.

Parameter Comparison

Parameter	XC6221D28AMR-G (Torex)	S-1315A2J-M5T1U3 (ABLIC)
Output Configuration	Positive	Positive
Output Type	Fixed	Fixed
Voltage - Output (Min/Fixed)	2.85V	2.85V
Current - Output	200mA	200mA
Voltage - Input (Max)	6V	5.5V
Voltage Dropout (Max)	0.17V @ 100mA	0.28V @ 200mA
Current - Quiescent (Iq)	50 µA	1 µA
PSRR	70dB (1kHz)	55dB (1kHz)
Control Features	Enable	Enable
Protection Features	Over Current	Over Current
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753
Supplier Device Package	SOT-25	SOT-23-5
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active

Engineering Selection Recommendations

Both the XC6221D28AMR-G and S-1315A2J-M5T1U3 are active production components with ROHS3 compliance and unlimited moisture sensitivity ratings, making them suitable for equivalent substitution in applications requiring a 2.85V, 200mA positive linear voltage regulator with enable control and over-current protection.

The XC6221D28AMR-G offers a maximum input voltage specification of 6V with lower dropout voltage (0.17V @ 100mA) and higher PSRR (70dB at 1kHz), making it preferable for applications with higher input voltage margins or requiring superior noise rejection.

The S-1315A2J-M5T1U3 provides significantly lower quiescent current (1 µA versus 50 µA), which is advantageous for battery-powered or low-power standby applications. The substitute maintains functional equivalence across all critical output specifications and control features.

Selection between these parts should be based on specific circuit requirements regarding input voltage headroom, quiescent current consumption, and noise performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the S-1315A2J-M5T1U3 directly replace the XC6221D28AMR-G in existing designs?

A: The S-1315A2J-M5T1U3 provides functional equivalence for the core output specifications (2.85V, 200mA) and control features (enable, over-current protection). However, the lower maximum input voltage (5.5V versus 6V) and higher dropout voltage (0.28V @ 200mA versus 0.17V @ 100mA) must be evaluated against specific circuit requirements. PCB layout compatibility should be confirmed due to different supplier device packages (SOT-23-5 versus SOT-25).

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

A: The primary differences are: (1) Maximum input voltage: XC6221D28AMR-G supports 6V, S-1315A2J-M5T1U3 supports 5.5V; (2) Quiescent current: XC6221D28AMR-G draws 50 µA, S-1315A2J-M5T1U3 draws 1 µA; (3) PSRR: XC6221D28AMR-G provides 70dB at 1kHz, S-1315A2J-M5T1U3 provides 55dB at 1kHz; (4) Dropout voltage: XC6221D28AMR-G has 0.17V @ 100mA, S-1315A2J-M5T1U3 has 0.28V @ 200mA.

Q: Are the package footprints identical?

A: Both regulators use the SC-74A / SOT-753 case designation. However, the supplier device packages differ: XC6221D28AMR-G uses SOT-25, while S-1315A2J-M5T1U3 uses SOT-23-5. Physical pin configuration and PCB footprint compatibility must be verified before substitution.

Q: Which regulator is better for low-power applications?

A: The S-1315A2J-M5T1U3 is superior for low-power applications due to its significantly lower quiescent current of 1 µA compared to the XC6221D28AMR-G at 50 µA. This 50-fold reduction in standby current consumption is critical for battery-powered or energy-harvesting designs.

Q: What compliance certifications apply to both parts?

A: Both the XC6221D28AMR-G and S-1315A2J-M5T1U3 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Both are classified under ECCN EAR99 and HTSUS 8542.39.0001.

Q: Can I use the S-1315A2J-M5T1U3 if my input voltage is 6V?

A: The S-1315A2J-M5T1U3 has a maximum input voltage specification of 5.5V. Operating at 6V input exceeds the rated specification and is not recommended. The XC6221D28AMR-G is the appropriate choice for applications requiring 6V input voltage support.

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