XC6217B18AMR-G Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The XC6217B18AMR-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 0.21V at 100mA, housed in a SOT-25 surface mount package. The part is currently in active production status with 1,048 units in stock inventory. Linear voltage regulators of this specification are essential in applications requiring low-noise, low-dropout power conversion for microcontroller power supplies, sensor circuits, and auxiliary power rails where space and thermal constraints demand compact, efficient regulation.

Key Parameters

Parameter	Value
Manufacturer	Torex Semiconductor Ltd
Part Number	XC6217B18AMR-G
Category	Power Management (PMIC)
Output Voltage (Fixed)	1.85V
Output Current	200mA
Input Voltage (Max)	6V
Dropout Voltage (Max)	0.21V @ 100mA
Quiescent Current	8 µA
PSRR	70dB (1kHz)
Package Type	SOT-25 (SC-74A, SOT-753)
Operating Temperature	-40°C ~ 85°C
Product Status	Active
RoHS Compliance	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the XC6217B18AMR-G is determined by strict alignment of the following critical parameters:

Fixed Output Voltage: 1.85V (exact match required)

Output Current Rating: 200mA (minimum requirement)

Output Configuration: Positive fixed output, single regulator

Control Features: Enable function present

Protection Features: Over-current protection

Operating Temperature Range: -40°C ~ 85°C minimum

Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

Mounting Type: Surface Mount

The substitute part S-1315A1J-M5T1U3 meets all mandatory substitution criteria. While packaging differs (SOT-23-5 versus SOT-25), both are industry-standard surface mount packages with compatible pinout configurations for this regulator class. Input voltage tolerance (5.5V maximum versus 6V maximum) and dropout voltage characteristics (0.486V @ 200mA versus 0.21V @ 100mA) represent acceptable operational variations within the substitute's specification envelope for equivalent circuit applications.

Parameter Comparison

Parameter	XC6217B18AMR-G (Main)	S-1315A1J-M5T1U3 (Substitute)	Compatibility
Manufacturer	Torex Semiconductor Ltd	ABLIC Inc.	Different manufacturer
Output Voltage (Fixed)	1.85V	1.85V	Exact match
Output Current	200mA	200mA	Exact match
Input Voltage (Max)	6V	5.5V	Substitute has lower maximum input
Dropout Voltage (Max)	0.21V @ 100mA	0.486V @ 200mA	Substitute has higher dropout
Quiescent Current	8 µA	1 µA	Substitute has lower quiescent current
PSRR	70dB (1kHz)	60dB (1kHz)	Substitute has lower PSRR
Package Type	SOT-25	SOT-23-5	Different package, both surface mount
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	Exact match
Product Status	Active	Active	Both in production
RoHS Compliance	ROHS3 Compliant	ROHS3 Compliant	Exact match
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Different packaging format

Engineering Selection Recommendations

Primary Part Selection: The XC6217B18AMR-G remains the preferred choice when design specifications explicitly require the 0.21V maximum dropout voltage at 100mA, the 70dB PSRR performance, or when PCB layout is optimized for SOT-25 package geometry. This part is in active production with substantial inventory availability (1,048 units).

Substitute Part Selection: The S-1315A1J-M5T1U3 is a valid substitute when the following conditions are met:

Input voltage supply does not exceed 5.5V
Application tolerance permits 0.486V dropout voltage at full 200mA load
Application tolerance permits 60dB PSRR performance
PCB layout can accommodate SOT-23-5 package footprint
Lower quiescent current (1 µA versus 8 µA) provides design advantage

Both parts maintain identical output voltage (1.85V), output current (200mA), operating temperature range (-40°C ~ 85°C), and regulatory compliance (ROHS3, REACH Unaffected). Both are active production parts with confirmed inventory.

Frequently Asked Questions (FAQ)

Q: Can the S-1315A1J-M5T1U3 be used as a direct replacement for the XC6217B18AMR-G?

A: The S-1315A1J-M5T1U3 is functionally equivalent for applications where input voltage remains below 5.5V and the higher dropout voltage (0.486V @ 200mA) is acceptable. PCB layout modification is required due to different package types (SOT-23-5 versus SOT-25).

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

A: The primary differences are: (1) Input voltage maximum (6V versus 5.5V), (2) Dropout voltage (0.21V @ 100mA versus 0.486V @ 200mA), (3) PSRR performance (70dB versus 60dB), (4) Quiescent current (8 µA versus 1 µA), and (5) Package type (SOT-25 versus SOT-23-5).

Q: Are both parts RoHS compliant?

A: Yes, both the XC6217B18AMR-G and S-1315A1J-M5T1U3 are ROHS3 Compliant and REACH Unaffected.

Q: What is the impact of different package types?

A: SOT-25 and SOT-23-5 are both five-pin surface mount packages with compatible pinout configurations for linear regulators. PCB footprint and land pattern differ, requiring layout redesign. Both packages are industry standard with equivalent thermal and electrical performance characteristics.

Q: Which part should I select for low-power applications?

A: The S-1315A1J-M5T1U3 offers lower quiescent current (1 µA versus 8 µA), making it preferable for battery-powered or ultra-low-power applications where standby current consumption is critical.

Q: Can I use the XC6217B18AMR-G with input voltages above 5.5V?

A: Yes, the XC6217B18AMR-G is rated for input voltages up to 6V. The S-1315A1J-M5T1U3 is limited to 5.5V maximum input voltage.

Q: Are there inventory considerations between these parts?

A: The XC6217B18AMR-G has 1,048 units in stock (Tape & Reel packaging). The S-1315A1J-M5T1U3 has 894 units in stock (Cut Tape packaging). Packaging format selection depends on assembly process requirements.

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