XC6501D1817R-G Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The XC6501D1817R-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 1.8V output with 200mA current capacity in a compact 4-USPN surface mount package. The part is currently in active production status with 1137 units in stock inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter range. Alternative models may be required due to inventory constraints, supply chain optimization, or design revision cycles while maintaining functional equivalence in the target application.

Key Parameters

Parameter	Value	Unit
Output Voltage (Fixed)	1.8	V
Output Current	200	mA
Input Voltage (Maximum)	6	V
Voltage Dropout (Maximum)	0.47	V @ 200mA
Quiescent Current	18	µA
PSRR	50	dB (1kHz)
Package Type	4-XDFN (4-USPN 0.90x1.2)	Surface Mount
Operating Temperature Range	-40 to +85	°C
Control Features	Enable	—
Protection Features	Over Current	—

Substitute Part Grouping Explanation

Substitution eligibility for the XC6501D1817R-G is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Fixed output voltage of 1.8V
Output current rating of 200mA or greater
Maximum input voltage of 6V or greater
Operating temperature range of -40°C to +85°C or wider
Enable control feature
Over current protection feature

Mechanical Equivalence Criteria:

Package type: 4-XDFN (4-USPN 0.90x1.2)
Surface mount configuration
Tape & Reel packaging format

Compliance Equivalence Criteria:

RoHS3 Compliant status
Moisture Sensitivity Level (MSL) of 1 or better
REACH Unaffected status

The XC6217D1827R-G meets all substitution criteria while maintaining identical output voltage, current capacity, package dimensions, and compliance certifications.

Parameter Comparison

Parameter	XC6501D1817R-G (Main)	XC6217D1827R-G (Substitute)	Compatibility
Manufacturer	Torex Semiconductor Ltd	Torex Semiconductor Ltd	Same
Output Voltage (Fixed)	1.8V	1.8V	Equivalent
Output Current	200mA	200mA	Equivalent
Input Voltage (Max)	6V	6V	Equivalent
Voltage Dropout (Max)	0.47V @ 200mA	0.21V @ 100mA	Substitute Superior
Quiescent Current	18µA	8µA	Substitute Superior
PSRR	50dB (1kHz)	70dB (1kHz)	Substitute Superior
Package Type	4-XDFN (4-USPN 0.90x1.2)	4-XDFN (4-USPN 0.90x1.2)	Identical
Operating Temperature	-40°C to +85°C	-40°C to +85°C	Equivalent
Control Features	Enable	Enable	Equivalent
Protection Features	Over Current	Over Current	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
MSL Rating	1 (Unlimited)	1 (Unlimited)	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
Product Status	Active	Active	Equivalent
Inventory (Pcs)	1137	842	Both Available

Engineering Selection Recommendations

Primary Selection (XC6501D1817R-G): The XC6501D1817R-G is the specified component with active production status and higher inventory availability (1137 units). This part maintains full compliance with RoHS3, REACH, and MSL requirements. Selection of this part is appropriate when the original design specification is maintained and supply is confirmed.

Substitute Selection (XC6217D1827R-G): The XC6217D1827R-G is a direct functional substitute with identical electrical output specifications and package configuration. This part demonstrates improved performance characteristics in dropout voltage and quiescent current consumption, while maintaining equivalent compliance certifications (RoHS3, REACH, MSL 1). The substitute is suitable for applications where the original part is unavailable or where the enhanced performance parameters provide system-level benefits. Both parts are manufactured by the same supplier and share identical mechanical interfaces.

Compliance Verification: Both parts maintain active production status and full compliance with RoHS3 and REACH regulations. Moisture sensitivity level (MSL 1) indicates unlimited shelf life under standard storage conditions for both components.

Frequently Asked Questions (FAQ)

Q: Can XC6217D1827R-G be used as a direct replacement for XC6501D1817R-G in existing designs?

A: Yes. Both parts provide identical fixed 1.8V output at 200mA with the same 4-XDFN package footprint and pinout. No PCB layout modifications are required. Both parts feature Enable control and Over Current protection with identical operating temperature ranges (-40°C to +85°C).

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

A: The XC6217D1827R-G demonstrates superior performance in three parameters: lower dropout voltage (0.21V @ 100mA versus 0.47V @ 200mA), lower quiescent current (8µA versus 18µA), and higher PSRR (70dB versus 50dB at 1kHz). Electrical output specifications and package dimensions are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts are RoHS3 Compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Both are supplied in Tape & Reel packaging format.

Q: Which part should be selected for new designs?

A: Selection depends on supply availability and performance requirements. The XC6217D1827R-G offers improved efficiency characteristics (lower quiescent current and dropout voltage), making it advantageous for battery-powered or power-sensitive applications. The XC6501D1817R-G is appropriate when the original specification is maintained and inventory is confirmed.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 4-XDFN package with dimensions 0.90x1.2mm (4-USPN). Pin configuration and PCB footprint are identical, enabling direct substitution without layout changes.

Q: What is the maximum input voltage for both parts?

A: Both the XC6501D1817R-G and XC6217D1827R-G accept input voltages up to 6V maximum, with fixed 1.8V output regulation across the specified input range.

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