XC6501A28AMR-G Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The XC6501A28AMR-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 2.85V at 200mA with a maximum input voltage of 6V and is packaged in SOT-25 (SC-74A, SOT-753) surface mount configuration. The part is currently in active product status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical performance parameters, output voltage compatibility, current delivery capability, and package form factors suitable for direct circuit board replacement.

Key Parameters

Parameter	Value	Unit
Output Voltage (Fixed)	2.85V	V
Output Current	200mA	mA
Input Voltage (Max)	6V	V
Dropout Voltage (Max)	0.36V @ 200mA	V
Quiescent Current	20 µA	µA
PSRR	50dB	dB @ 1kHz
Operating Temperature Range	-40°C ~ 85°C	°C
Package Type	SOT-25 (SC-74A, SOT-753)	Surface Mount
Control Features	Enable	—
Protection Features	Over Current	—

Substitute Part Grouping Explanation

Substitute parts for the XC6501A28AMR-G are classified into two categories based on electrical and mechanical compatibility:

Category 1: Direct Parametric Equivalents Parts that match the primary electrical specifications (output voltage 2.85V, output current 200mA, fixed positive output configuration, enable control, over current protection) and operate within the same temperature range (-40°C ~ 85°C). These parts maintain functional equivalence for applications requiring identical electrical performance.

Category 2: Functional Substitutes with Enhanced Specifications Parts that provide higher output current capability (300mA vs. 200mA) and extended temperature range (-40°C ~ 125°C) while maintaining compatible output voltage (2.8V nominal, within acceptable tolerance of 2.85V) and package form factor. These substitutes offer improved performance margins and additional protection features while remaining pin-compatible in SOT-23-5 package variants.

Key Parameters Determining Substitution:

Output voltage compatibility (2.8V to 2.85V fixed output)
Output current rating (minimum 200mA)
Input voltage maximum (5.5V to 6V range)
Package type (SOT-25/SOT-23-5 surface mount)
Control and protection feature set (Enable control, Over Current protection minimum)
RoHS3 compliance and MSL 1 rating

Parameter Comparison

Parameter	XC6501A28AMR-G (Main)	S-1315A2J-M5T1U3	TLV70228PDBVT	TLV70228PDBVR
Manufacturer	Torex Semiconductor Ltd	ABLIC Inc.	Texas Instruments	Texas Instruments
Output Voltage (Fixed)	2.85V	2.85V	2.8V	2.8V
Output Current	200mA	200mA	300mA	300mA
Input Voltage (Max)	6V	5.5V	5.5V	5.5V
Dropout Voltage (Max)	0.36V @ 200mA	0.28V @ 200mA	0.38V @ 300mA	0.38V @ 300mA
Quiescent Current	20 µA	1 µA	55 µA	55 µA
PSRR	50dB @ 1kHz	55dB @ 1kHz	68dB @ 1kHz	68dB @ 1kHz
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C
Package Type	SOT-25 (SC-74A)	SOT-23-5 (SC-74A)	SOT-23-5 (SC-74A)	SOT-23-5 (SC-74A)
Control Features	Enable	Enable	Enable	Enable
Protection Features	Over Current	Over Current	Over Current, Over Temperature, Reverse Polarity, UVLO	Over Current, Over Temperature, Reverse Polarity, UVLO
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

S-1315A2J-M5T1U3 (ABLIC Inc.) This part is a direct parametric equivalent to the XC6501A28AMR-G, matching the 2.85V output voltage and 200mA current rating with identical operating temperature range. The S-1315A2J-M5T1U3 offers superior dropout voltage performance (0.28V vs. 0.36V) and significantly lower quiescent current (1 µA vs. 20 µA), resulting in reduced power dissipation in battery-powered applications. Both devices maintain RoHS3 compliance, MSL 1 rating, and active product status. Selection of this part is appropriate for direct replacement where the lower quiescent current provides system-level power efficiency benefits.

TLV70228PDBVT and TLV70228PDBVR (Texas Instruments) These Texas Instruments regulators provide enhanced specifications with 300mA output current capability and extended operating temperature range (-40°C ~ 125°C). The output voltage of 2.8V is compatible with 2.85V applications within standard voltage tolerance margins. Both variants include comprehensive protection features (Over Temperature, Reverse Polarity, Under Voltage Lockout) beyond the basic over current protection of the main part. The TLV70228 series maintains RoHS3 compliance and MSL 1 rating with active product status. These parts are suitable for applications requiring higher current delivery or extended temperature operation, with the trade-off of increased quiescent current (55 µA). The PDBVT variant (7080 pcs inventory) and PDBVR variant (26100 pcs inventory) differ only in packaging configuration within the SOT-23-5 form factor.

All substitute parts are surface mount devices in SC-74A/SOT-753 package variants compatible with standard PCB assembly processes and maintain full regulatory compliance equivalent to the main part.

Frequently Asked Questions (FAQ)

Q1: Can the S-1315A2J-M5T1U3 be used as a direct replacement for the XC6501A28AMR-G?

A: Yes. The S-1315A2J-M5T1U3 is a direct parametric equivalent with matching 2.85V output voltage, 200mA current rating, and -40°C ~ 85°C operating temperature range. Both devices feature enable control and over current protection. The S-1315A2J-M5T1U3 provides improved dropout voltage and lower quiescent current, making it functionally superior for direct circuit board substitution.

Q2: What is the voltage compatibility between the 2.85V XC6501A28AMR-G and the 2.8V TLV70228 series?

A: The 2.8V and 2.85V output voltages are compatible within standard voltage regulator tolerance specifications. A 50mV difference represents approximately 1.7% variation, which is acceptable for most applications designed for 2.85V operation. System-level voltage margin analysis is required for applications with strict voltage requirements.

Q3: Why do the TLV70228PDBVT and TLV70228PDBVR have higher quiescent current than the main part?

A: The TLV70228 series incorporates additional protection features (Over Temperature, Reverse Polarity, Under Voltage Lockout) beyond the basic over current protection of the XC6501A28AMR-G. These integrated protection circuits increase quiescent current from 20 µA to 55 µA. The trade-off provides enhanced system reliability and fault tolerance.

Q4: Are all substitute parts available in the same package as the XC6501A28AMR-G?

A: All substitute parts use the SC-74A/SOT-753 package family in surface mount configuration. The XC6501A28AMR-G is specified as SOT-25, while substitutes are SOT-23-5. Both package variants are mechanically and electrically compatible within the SC-74A/SOT-753 family, with identical pin pitch and lead spacing suitable for standard PCB assembly.

Q5: What is the maximum input voltage for each substitute part?

A: The XC6501A28AMR-G accepts maximum input voltage of 6V. The S-1315A2J-M5T1U3, TLV70228PDBVT, and TLV70228PDBVR all specify maximum input voltage of 5.5V. Circuit designs operating at 6V input must verify compatibility with the 5.5V maximum rating of substitute parts.

Q6: Which substitute part is recommended for battery-powered applications?

A: The S-1315A2J-M5T1U3 is optimized for battery-powered applications due to its significantly lower quiescent current (1 µA vs. 20 µA for the main part and 55 µA for TLV70228 variants). This 20-fold reduction in quiescent current directly extends battery life in low-power standby modes.

Q7: Do all parts maintain RoHS3 compliance and unlimited moisture sensitivity?

A: Yes. The XC6501A28AMR-G, S-1315A2J-M5T1U3, TLV70228PDBVT, and TLV70228PDBVR are all RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. All parts maintain identical regulatory compliance status.

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