XC6501C18AMR-G Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The XC6501C18AMR-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 1.85V at 200mA with a maximum dropout voltage of 0.47V, designed for surface mount applications in the SOT-25 package. The part is currently in active production status with 714 units in stock. Alternative equivalent parts may be required due to supply chain constraints, regional availability, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

XC6501C18AMR-G

Torex Semiconductor LtdIn Stock: 765XC6501C18AMR-G Datasheet

Current PartRFQ

S-1315A1J-M5T1U3

ABLIC Inc.In Stock: 992S-1315A1J-M5T1U3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the XC6501C18AMR-G is determined by strict alignment of the following critical parameters:

Electrical Compatibility Criteria:

• Fixed output voltage of 1.85V (exact match required)
• Output current rating of 200mA (minimum requirement)
• Maximum input voltage of 5.5V or higher (to accommodate 6V maximum input specification)
• Dropout voltage not exceeding 0.47V at 200mA (to maintain regulation performance)
• Operating temperature range of -40°C to 85°C (minimum coverage required)
• Enable control feature (functional equivalence)
• Over-current protection (functional equivalence)

Mechanical Compatibility Criteria:

• Surface mount technology
• SOT-25 or SOT-23-5 package footprint compatibility
• Pin configuration compatibility with SC-74A standard

Compliance Criteria:

• ROHS3 compliance (mandatory for equivalent status)
• Active product status (current manufacturing availability)

The substitute part S-1315A1J-M5T1U3 meets all electrical and mechanical criteria for direct substitution in applications using the XC6501C18AMR-G.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (XC6501C18AMR-G): The XC6501C18AMR-G remains the primary choice when supply is available. This part is actively manufactured by Torex Semiconductor Ltd with confirmed inventory of 714 units. It meets all ROHS3 compliance requirements and carries full active product status designation.

Substitute Selection (S-1315A1J-M5T1U3): The S-1315A1J-M5T1U3 from ABLIC Inc. is a qualified electrical and mechanical equivalent suitable for direct substitution. This part demonstrates superior performance characteristics in quiescent current (1µA versus 18µA) and power supply rejection ratio (60dB versus 50dB at 1kHz). Both devices maintain identical output voltage (1.85V), output current (200mA), operating temperature range (-40 to 85°C), and control/protection features. The S-1315A1J-M5T1U3 is available in Cut Tape packaging with 894 units in stock and carries ROHS3 compliance certification.

Critical Consideration: The S-1315A1J-M5T1U3 specifies a maximum input voltage of 5.5V, compared to the XC6501C18AMR-G specification of 6V. Applications requiring input voltages between 5.5V and 6V must be evaluated against actual circuit requirements before substitution.

Frequently Asked Questions (FAQ)

Q: Can the S-1315A1J-M5T1U3 directly replace the XC6501C18AMR-G in existing designs?

A: Yes, the S-1315A1J-M5T1U3 is a direct electrical and mechanical equivalent for applications where the input voltage does not exceed 5.5V. Both devices deliver identical 1.85V fixed output at 200mA with matching enable control and over-current protection. The SOT-23-5 package maintains footprint compatibility with the SOT-25 standard. No circuit modifications are required for pin-compatible applications.

Q: What is the difference between SOT-25 and SOT-23-5 packaging?

A: Both the XC6501C18AMR-G (SOT-25) and S-1315A1J-M5T1U3 (SOT-23-5) use the SC-74A footprint standard, ensuring mechanical and electrical pin compatibility. The designations refer to the same physical package configuration used in surface mount applications.

Q: Why does the S-1315A1J-M5T1U3 have lower quiescent current than the XC6501C18AMR-G?

A: The S-1315A1J-M5T1U3 specifies 1µA quiescent current compared to 18µA for the XC6501C18AMR-G. This represents a design difference between manufacturers and reflects superior power efficiency in the ABLIC device. Both values are within acceptable ranges for linear regulator applications.

Q: What is the significance of the 0.016V difference in dropout voltage?

A: The XC6501C18AMR-G specifies 0.47V maximum dropout at 200mA, while the S-1315A1J-M5T1U3 specifies 0.486V. This 0.016V variance is negligible for most applications and does not affect functional compatibility. Both devices maintain adequate regulation performance across the specified operating range.

Q: Are both parts RoHS3 compliant?

A: Yes, both the XC6501C18AMR-G and S-1315A1J-M5T1U3 carry ROHS3 compliance certification, meeting all hazardous substance restrictions for electronic components.

Q: What packaging format is available for each part?

A: The XC6501C18AMR-G is supplied in Tape & Reel (TR) format with 714 units in stock. The S-1315A1J-M5T1U3 is supplied in Cut Tape (CT) format with 894 units in stock. Both formats are suitable for automated assembly processes.

Q: Can I use the S-1315A1J-M5T1U3 if my application requires 6V input?

A: The S-1315A1J-M5T1U3 is rated for maximum 5.5V input. Applications requiring 6V input must use the XC6501C18AMR-G or verify that actual circuit input voltage remains below 5.5V before substitution.