XC6501D18AMR-G Equivalent & Substitute Parts

Part Overview

The XC6501D18AMR-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 1.85V at 200mA with integrated enable control and over-current protection features. The regulator operates across an industrial temperature range of -40°C to 85°C and is packaged in SOT-25 surface mount configuration.

The XC6501D18AMR-G remains in active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent substitute parts are identified based on matching electrical performance parameters, output voltage specification, current delivery capability, and functional feature parity.

Substiute Parts

XC6501D18AMR-G

Torex Semiconductor LtdIn Stock: 932XC6501D18AMR-G Datasheet

Current PartRFQ

S-1315A1J-M5T1U3

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

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the XC6501D18AMR-G are identified through parametric equivalence analysis. The substitution logic is based on the following critical parameters that must align across candidate parts:

Output Voltage Specification: Fixed 1.85V output is the primary functional requirement. All substitute parts must deliver identical output voltage.

Output Current Rating: 200mA current delivery capability is mandatory for circuit compatibility.

Input Voltage Tolerance: Maximum input voltage of 6V (XC6501D18AMR-G) or lower establishes the upper operating boundary.

Voltage Dropout Performance: Maximum dropout voltage of 0.47V at 200mA defines the minimum input-to-output differential required for proper regulation.

Control and Protection Features: Enable control and over-current protection must be present in substitute parts.

Operating Temperature Range: -40°C to 85°C industrial temperature specification must be supported.

Package Compatibility: SOT-25 or equivalent surface mount packages (SOT-23-5) with identical pinout configuration.

Compliance Status: RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1) are required.

The S-1315A1J-M5T1U3 manufactured by ABLIC Inc. meets all parametric equivalence criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (XC6501D18AMR-G): Maintain original specification when supply availability and cost are not constraints. This part carries active product status with established manufacturing continuity from Torex Semiconductor Ltd.

Substitute Selection (S-1315A1J-M5T1U3): The ABLIC S-1315A1J-M5T1U3 qualifies as a direct parametric equivalent with the following considerations:

The S-1315A1J-M5T1U3 operates with a maximum input voltage of 5.5V compared to the XC6501D18AMR-G specification of 6V. This represents a tighter input voltage tolerance that is compatible with standard 5V supply rails and lower voltage sources but excludes applications requiring the full 6V input range.

The S-1315A1J-M5T1U3 demonstrates superior quiescent current performance (1µA versus 18µA) and higher power supply rejection ratio (60dB versus 50dB at 1kHz), resulting in lower standby power consumption and improved noise rejection characteristics.

Both parts maintain identical output voltage (1.85V), output current (200mA), dropout voltage performance (0.47V/0.486V), operating temperature range (-40°C to 85°C), and protection features (enable control, over-current protection).

Both parts carry RoHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and active product status.

Package compatibility exists between SOT-25 (XC6501D18AMR-G) and SOT-23-5 (S-1315A1J-M5T1U3) configurations with identical pinout assignments for enable, ground, input, and output functions.

Frequently Asked Questions (FAQ)

Q: Can the S-1315A1J-M5T1U3 replace the XC6501D18AMR-G in all applications?

A: The S-1315A1J-M5T1U3 is a direct substitute for applications operating with input voltages up to 5.5V. Applications requiring the full 6V input voltage range of the XC6501D18AMR-G must retain the original part specification.

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

A: SOT-25 and SOT-23-5 are equivalent surface mount packages with identical pinout configurations and lead spacing. Both packages accommodate the five-pin linear regulator function (input, output, ground, enable, and no-connect). PCB footprints are interchangeable.

Q: Does the lower quiescent current of the S-1315A1J-M5T1U3 affect circuit operation?

A: The reduced quiescent current (1µA versus 18µA) of the S-1315A1J-M5T1U3 improves standby power efficiency without affecting active regulation performance. Output voltage, current delivery, and dropout characteristics remain equivalent.

Q: Are both parts compliant with RoHS3 and REACH regulations?

A: Both the XC6501D18AMR-G and S-1315A1J-M5T1U3 carry RoHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory requirements for electronic component procurement.

Q: What is the significance of the 60dB PSRR specification of the S-1315A1J-M5T1U3?

A: Power Supply Rejection Ratio (PSRR) of 60dB at 1kHz indicates superior attenuation of input voltage noise and ripple compared to the 50dB specification of the XC6501D18AMR-G. This results in cleaner regulated output voltage with reduced noise coupling to downstream circuits.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes, both parts are pin-compatible and functionally equivalent for applications within the 5.5V maximum input voltage specification. PCB footprints for SOT-25 and SOT-23-5 packages are identical, allowing direct component substitution without layout modifications.

Q: What inventory status should be considered for procurement decisions?

A: The XC6501D18AMR-G maintains 860 pieces in stock, while the S-1315A1J-M5T1U3 has 894 pieces available. Both parts carry active product status with established supply chains from their respective manufacturers.