XC6220B301PR-G Equivalent & Substitute Parts

Part Overview

The XC6220B301PR-G is a linear voltage regulator IC manufactured by Torex Semiconductor Ltd, designed to deliver a fixed 3V output at 1A maximum current. This Surface Mount device in SOT-89-5 packaging is classified as a Power Management (PMIC) component and maintains Active product status. The regulator incorporates enable control functionality and dual protection features for overcurrent and overtemperature conditions, making it suitable for applications requiring stable 3V power delivery with moderate current demands.

Substitute parts become necessary when the primary component experiences supply constraints, obsolescence, or when design flexibility requires alternative qualified sources. The following equivalent and substitute parts maintain functional compatibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value	Unit
Output Voltage (Fixed)	3V	V
Maximum Output Current	1A	A
Maximum Input Voltage	6V	V
Maximum Dropout Voltage	0.655V @ 1A	V
Quiescent Current	18 µA	µA
Package Type	SOT-89-5	—
Mounting Type	Surface Mount	—
Operating Temperature Range	-40°C to 85°C	°C
Control Features	Enable	—
Protection Features	Over Current, Over Temperature	—

Substitute Part Grouping Explanation

Substitute parts for the XC6220B301PR-G are qualified based on the following critical parameters:

Electrical Compatibility Criteria:

Fixed output voltage of 3V
Maximum input voltage rating of 5.5V or higher
Operating temperature range of -40°C to 85°C
Enable control functionality
Overcurrent and thermal protection features
SOT-89-5 package configuration

Substitution Logic:

The S-1155B30-U5T1U qualifies as a functional substitute despite reduced output current capacity (500mA versus 1A) because it maintains the same fixed 3V output voltage, identical package type, matching operating temperature range, and equivalent protection features. This part is suitable for applications where current demand does not exceed 500mA. The S-1155 series is classified as Obsolete, requiring evaluation of long-term availability.

The R1172H301D-T1-FE qualifies as a parametric equivalent because it maintains full electrical compatibility with the XC6220B301PR-G: identical 3V fixed output, 1A output current capacity, 6V maximum input voltage, matching package type, identical operating temperature range, and equivalent protection architecture. This part maintains Active product status and represents a direct functional replacement.

Parameter Comparison

Parameter	XC6220B301PR-G (Torex)	S-1155B30-U5T1U (ABLIC)	R1172H301D-T1-FE (Nisshinbo)
Manufacturer	Torex Semiconductor Ltd	ABLIC Inc.	Nisshinbo Micro Devices Inc.
Output Voltage (Fixed)	3V	3V	3V
Maximum Output Current	1A	500mA	1A
Maximum Input Voltage	6V	5.5V	6V
Dropout Voltage (Max)	0.655V @ 1A	0.1V @ 200mA	0.18V @ 1A
Quiescent Current	18 µA	1 µA	100 µA
PSRR @ 1kHz	50dB	60dB	70dB
Package Type	SOT-89-5	SOT-89-5	SOT-89-5
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Control Features	Enable	Enable	Enable
Protection Features	Over Current, Over Temperature	Overcurrent, Thermal Shutdown	Over Current, Over Temperature
Product Status	Active	Obsolete	Active
RoHS Compliance	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)

Engineering Selection Recommendations

R1172H301D-T1-FE (Nisshinbo Micro Devices Inc.) is the primary recommended substitute for the XC6220B301PR-G. This part maintains Active product status, ensuring long-term availability and supply chain stability. Electrical specifications are fully compatible: identical 3V fixed output voltage, 1A output current capacity, and 6V maximum input voltage rating. The R1172H301D-T1-FE provides superior PSRR performance (70dB versus 50dB at 1kHz) and lower dropout voltage at rated current (0.18V versus 0.655V @ 1A), delivering improved power supply rejection and efficiency characteristics. All regulatory certifications align: ROHS3 Compliant, REACH Unaffected, and EAR99 classification. Tape & Reel packaging matches the original component format.

S-1155B30-U5T1U (ABLIC Inc.) qualifies as a functional substitute only for applications where maximum output current does not exceed 500mA. This part carries Obsolete product status, indicating discontinued manufacturing and potential supply limitations. While electrical parameters are compatible for reduced-current applications (3V fixed output, matching operating temperature range, equivalent protection features), the 500mA output current limit restricts its use to lower-power designs. The maximum input voltage rating of 5.5V is lower than the primary part's 6V specification. Regulatory compliance is equivalent (ROHS3 Compliant, REACH Unaffected). Cut Tape packaging differs from the original Tape & Reel format, requiring process adjustment for automated assembly.

Frequently Asked Questions (FAQ)

Q: Can the R1172H301D-T1-FE directly replace the XC6220B301PR-G without circuit modifications?

A: Yes. The R1172H301D-T1-FE maintains identical electrical specifications for output voltage (3V fixed), output current (1A), input voltage rating (6V maximum), operating temperature range (-40°C to 85°C), and protection features (overcurrent and overtemperature). The SOT-89-5 package pinout is identical. No circuit modifications are required.

Q: What are the limitations of using the S-1155B30-U5T1U as a substitute?

A: The S-1155B30-U5T1U has two primary limitations. First, maximum output current is 500mA, restricting use to applications drawing 500mA or less. Second, the part carries Obsolete product status, indicating discontinued manufacturing and uncertain long-term availability. The maximum input voltage rating of 5.5V is also lower than the original 6V specification.

Q: How do the quiescent current specifications differ among these parts?

A: The XC6220B301PR-G draws 18 µA quiescent current, the R1172H301D-T1-FE draws 100 µA, and the S-1155B30-U5T1U draws only 1 µA. For battery-powered or ultra-low-power applications, the S-1155B30-U5T1U offers superior standby current performance, though this advantage is offset by its reduced output current capacity and obsolete status.

Q: Are there packaging format differences that affect assembly?

A: Yes. The XC6220B301PR-G and R1172H301D-T1-FE are supplied in Tape & Reel (TR) format, compatible with standard pick-and-place assembly equipment. The S-1155B30-U5T1U is supplied in Cut Tape (CT) format, requiring manual handling or alternative feeder systems for automated assembly.

Q: Do all three parts meet the same regulatory and compliance standards?

A: Yes. All three parts are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts, indicating no special moisture handling requirements.

Q: What is the significance of the PSRR (Power Supply Rejection Ratio) differences?

A: PSRR measures the regulator's ability to reject noise on the input supply. The R1172H301D-T1-FE provides 70dB PSRR at 1kHz, superior to the XC6220B301PR-G (50dB) and S-1155B30-U5T1U (60dB). Higher PSRR values indicate better noise rejection and cleaner output voltage, beneficial for noise-sensitive analog circuits.

Q: Which part should be selected for new designs?

A: The R1172H301D-T1-FE is the recommended choice for new designs. It maintains Active product status, ensuring long-term availability and supply chain reliability. Electrical specifications are fully compatible with the XC6220B301PR-G, and performance characteristics are superior in PSRR and dropout voltage metrics.

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