XC9301A403MR-G Equivalent & Substitute Parts

Part Overview

The XC9301A403MR-G is a buck-boost regulator positive output step-up/step-down DC-DC controller IC manufactured by Torex Semiconductor Ltd. This PWM-based power management IC operates at 300kHz switching frequency and is designed for applications requiring flexible voltage conversion across a 2V to 10V supply range. The device is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent functional performance can be achieved through alternative Torex XC9301 and XC9302 series controllers that maintain core electrical and mechanical compatibility while potentially offering different switching frequency characteristics.

Substiute Parts

XC9301A403MR-G

Torex Semiconductor LtdIn Stock: 882XC9301A403MR-G Datasheet

Current PartRFQ

XC9301A332MR-G

Torex Semiconductor LtdIn Stock: 1111XC9301A332MR-G Datasheet

Parametric EquivalentRFQ

XC9302A552MR-G

Torex Semiconductor LtdIn Stock: 996XC9302A552MR-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the XC9301A403MR-G are identified based on strict electrical and mechanical parameter alignment within the Torex XC9301 and XC9302 product families. The substitution criteria are defined by the following parameters:

Core Compatibility Parameters:

• Topology: Buck-Boost regulator architecture
• Output Type: PWM control
• Output Configuration: Positive output
• Number of Outputs: Single output (1)
• Voltage Supply Range: 2V ~ 10V
• Maximum Duty Cycle: 92%
• Operating Temperature Range: -40°C ~ 85°C
• Package / Case: SC-74A, SOT-753
• Supplier Device Package: SOT-25-5
• Mounting Type: Surface Mount
• RoHS Status: RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameter (Non-Critical for Substitution):

• Switching Frequency: 300kHz (main part) vs. 180kHz (substitute parts)

The XC9301A332MR-G and XC9302A552MR-G maintain all core electrical and mechanical specifications while operating at a reduced switching frequency of 180kHz. Both substitute parts are Active status products from Torex Semiconductor Ltd with identical compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—XC9301A403MR-G, XC9301A332MR-G, and XC9302A552MR-G—are Active status products from Torex Semiconductor Ltd with identical RoHS3 compliance and REACH unaffected status. Each part is suitable for applications requiring buck-boost DC-DC conversion within the 2V to 10V supply range.

The primary distinction between the main part and substitute parts is the switching frequency: the XC9301A403MR-G operates at 300kHz, while both XC9301A332MR-G and XC9302A552MR-G operate at 180kHz. This frequency difference affects output filter component sizing and electromagnetic interference (EMI) characteristics but does not alter the core voltage conversion capability, output configuration, or thermal operating range.

Selection between these parts should be based on application-specific requirements for switching frequency, component availability, and design constraints. All three parts are manufactured in the same package format (SOT-25-5) and maintain identical electrical specifications for supply voltage range, duty cycle, and control features.

Frequently Asked Questions (FAQ)

Q: Can XC9301A332MR-G or XC9302A552MR-G be used as direct replacements for XC9301A403MR-G?

A: Yes, both parts are direct substitutes from an electrical and mechanical standpoint. All three devices share identical voltage supply range (2V ~ 10V), output configuration (positive PWM), topology (buck-boost), duty cycle rating (92%), operating temperature range (-40°C ~ 85°C), and package format (SOT-25-5). The switching frequency difference (300kHz vs. 180kHz) does not prevent substitution but requires verification that output filter component values remain appropriate for the application.

Q: What is the difference between XC9301A403MR-G and XC9301A332MR-G?

A: Both parts belong to the XC9301 series and are functionally equivalent buck-boost regulators. The primary difference is switching frequency: XC9301A403MR-G operates at 300kHz while XC9301A332MR-G operates at 180kHz. All other electrical parameters, including supply voltage range, duty cycle, output configuration, and operating temperature, are identical.

Q: What is the difference between XC9301A332MR-G and XC9302A552MR-G?

A: Both parts operate at 180kHz switching frequency and share identical electrical specifications for voltage supply range, output configuration, duty cycle, and operating temperature. The primary difference is the product series: XC9301A332MR-G belongs to the XC9301 series while XC9302A552MR-G belongs to the XC9302 series. Both are Active status products with RoHS3 compliance.

Q: Are all three parts available in the same package?

A: Yes. All three parts use the SC-74A/SOT-753 package format with SOT-25-5 supplier device package designation. They are all surface mount components suitable for identical PCB layouts.

Q: Do switching frequency differences affect PCB design?

A: Switching frequency affects the selection of output filter components (inductors and capacitors) and may influence EMI performance. The 300kHz frequency of XC9301A403MR-G allows for smaller filter components compared to the 180kHz frequency of the substitute parts. However, all three devices maintain the same voltage conversion capability and output regulation characteristics.

Q: Are all three parts RoHS3 compliant?

A: Yes. XC9301A403MR-G, XC9301A332MR-G, and XC9302A552MR-G are all RoHS3 compliant with REACH unaffected status and MSL 1 (unlimited) moisture sensitivity rating.

Q: What is the operating temperature range for all three parts?

A: All three parts operate across the identical temperature range of -40°C to 85°C, making them suitable for industrial and commercial applications with equivalent thermal performance.