XC6505B321ER-G Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The XC6505B321ER-G is an active linear voltage regulator IC manufactured by Torex Semiconductor Ltd, classified as a Power Management (PMIC) component. This positive fixed output regulator delivers 200mA at 3.2V with a maximum dropout voltage of 0.24V @ 100mA. The device is currently in active production status with 1050 pieces available in stock. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory compliance are maintained across the specified parameter range.

Key Parameters

Parameter	Value	Unit
Output Voltage (Fixed)	3.2	V
Output Current	200	mA
Input Voltage (Max)	10.5	V
Dropout Voltage (Max)	0.24 @ 100mA	V
Quiescent Current	8	µA
PSRR	60	dB (1kHz)
Operating Temperature Range	-40 to 105	°C
Package Type	6-UFDFN Exposed Pad	-
Supplier Device Package	6-USPC (1.8x2)	-
Mounting Type	Surface Mount	-

Substitute Part Grouping Explanation

Substitution eligibility for the XC6505B321ER-G is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

Output voltage: 3.2V fixed
Output current capability: 200mA minimum
Input voltage maximum: 10.5V
Dropout voltage: 0.24V @ 100mA
Quiescent current: 8µA
PSRR: 60dB @ 1kHz
Control features: Enable function
Protection features: Over Current and Over Temperature protection

Mechanical Parameters (Must Match Exactly):

Package type: 6-UFDFN Exposed Pad
Supplier device package: 6-USPC (1.8x2)
Mounting type: Surface Mount

Regulatory & Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Status: REACH Unaffected
Product Status: Active

The XC6505A321ER-G qualifies as a parametric equivalent substitute based on identical electrical specifications, mechanical compatibility, and regulatory compliance status.

Parameter Comparison

Parameter	XC6505B321ER-G	XC6505A321ER-G	Match
Manufacturer	Torex Semiconductor Ltd	Torex Semiconductor Ltd	✓
Output Voltage (Fixed)	3.2V	3.2V	✓
Output Current	200mA	200mA	✓
Input Voltage (Max)	10.5V	10.5V	✓
Dropout Voltage (Max)	0.24V @ 100mA	0.24V @ 100mA	✓
Quiescent Current	8µA	8µA	✓
PSRR	60dB (1kHz)	60dB (1kHz)	✓
Control Features	Enable	Enable	✓
Protection Features	Over Current, Over Temperature	Over Current, Over Temperature	✓
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	✓
Package / Case	6-UFDFN Exposed Pad	6-UFDFN Exposed Pad	✓
Supplier Device Package	6-USPC (1.8x2)	6-USPC (1.8x2)	✓
Mounting Type	Surface Mount	Surface Mount	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
MSL	1 (Unlimited)	1 (Unlimited)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
Product Status	Active	Active	✓

Engineering Selection Recommendations

Both the XC6505B321ER-G and XC6505A321ER-G are active production components from Torex Semiconductor Ltd with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability and supply chain considerations. The XC6505B321ER-G currently has 1050 pieces in stock, while the XC6505A321ER-G has 1248 pieces available. Both parts maintain full ROHS3 compliance and REACH unaffected status, suitable for applications requiring regulatory adherence. The 6-USPC (1.8x2) surface mount package is consistent across both variants, ensuring PCB layout and assembly process compatibility without modification.

Frequently Asked Questions (FAQ)

Q: Can XC6505A321ER-G be used as a direct replacement for XC6505B321ER-G?

A: Yes. The XC6505A321ER-G is a parametric equivalent substitute. All electrical parameters, output specifications, protection features, operating temperature range, package type, and regulatory compliance certifications are identical. Direct substitution is supported without circuit modification.

Q: Are there any differences in the package or mounting requirements?

A: No. Both parts use the 6-UFDFN Exposed Pad package in 6-USPC (1.8x2) configuration with Surface Mount mounting type. PCB footprints, reflow profiles, and assembly procedures remain unchanged.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by exact equivalence in: output voltage (3.2V), output current (200mA), input voltage maximum (10.5V), dropout voltage (0.24V @ 100mA), quiescent current (8µA), PSRR (60dB @ 1kHz), protection features (Over Current and Over Temperature), operating temperature range (-40°C to 105°C), package type (6-UFDFN Exposed Pad), and regulatory compliance status (ROHS3, REACH Unaffected, MSL 1).

Q: Are both parts suitable for high-reliability applications?

A: Both XC6505B321ER-G and XC6505A321ER-G maintain active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), supporting deployment in standard industrial and commercial applications within the specified operating temperature range.

Q: What is the significance of the base product number XC6505?

A: The base product number XC6505 identifies the core regulator architecture. The suffix characters (B or A) and output voltage designation (321ER-G for 3.2V) define specific variants. Both B and A variants share identical electrical performance and package specifications for this 3.2V 200mA configuration.

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