XC9221C09AMR-G Equivalent & Substitute Parts

Part Overview

The XC9221C09AMR-G is a 16V input step-down DC-DC controller IC manufactured by Torex Semiconductor Ltd. This buck regulator operates as a transistor driver with positive output configuration, designed for single-output applications requiring step-down voltage conversion. The device is Active product status with 2628 pieces in current inventory stock.

Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the Torex XC9220 and XC9221 series. Substitution becomes necessary when the primary part number reaches end-of-life status, inventory constraints occur, or design flexibility is required across compatible switching frequency variants.

Key Parameters

Parameter	Value
Manufacturer	Torex Semiconductor Ltd
Category	Power Management (PMIC)
Function	Step-Down (Buck)
Output Type	Transistor Driver
Output Configuration	Positive
Number of Outputs	1
Voltage Supply Range (Vcc/Vdd)	2.8V ~ 16V
Switching Frequency	1MHz
Duty Cycle (Max)	100%
Synchronous Rectifier	No
Control Features	Enable, Soft Start
Operating Temperature Range	-40°C ~ 85°C (TA)
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-25-5
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the XC9221C09AMR-G are qualified based on the following criteria:

Electrical Compatibility Requirements:

Input voltage range: 2.8V ~ 16V (all substitutes match)
Output type: Transistor Driver (all substitutes match)
Function: Step-Down buck topology (all substitutes match)
Output configuration: Positive (all substitutes match)
Number of outputs: Single output (all substitutes match)
Duty cycle maximum: 100% (all substitutes match)
Control features: Enable and Soft Start (all substitutes match)
Operating temperature: -40°C ~ 85°C (all substitutes match)

Mechanical Compatibility Requirements:

Package type: SC-74A, SOT-753 (all substitutes match)
Supplier device package: SOT-25-5 (all substitutes match)
Mounting type: Surface Mount (all substitutes match)

Regulatory & Compliance Matching:

RoHS3 Compliant (all substitutes match)
MSL Level 1 (all substitutes match)
REACH Unaffected (all substitutes match)

Variable Parameter (Switching Frequency): The primary differentiator among substitute parts is the switching frequency specification. The XC9221C09AMR-G operates at 1MHz. Substitute parts are available with switching frequencies of 300kHz, 500kHz, and 1MHz. Selection of frequency variant depends on application-specific requirements for EMI characteristics, efficiency profile, and component size optimization.

Parameter Comparison

Part Number	Series	Switching Frequency	Inventory (Pcs)	Product Status	Vcc/Vdd Range	Package	RoHS
XC9221C09AMR-G	XC9221	1MHz	2628	Active	2.8V ~ 16V	SOT-25-5	ROHS3
XC9220A093MR-G	XC9220	300kHz	6200	Active	2.8V ~ 16V	SOT-25-5	ROHS3
XC9220A09AMR-G	XC9220	1MHz	3200	Active	2.8V ~ 16V	SOT-25-5	ROHS3
XC9220B095MR-G	XC9220	500kHz	1107	Active	2.8V ~ 16V	SOT-25-5	ROHS3
XC9220C095MR-G	XC9220	500kHz	952	Active	2.8V ~ 16V	SOT-25-5	ROHS3
XC9220C09AMR-G	XC9220	1MHz	1152	Active	2.8V ~ 16V	SOT-25-5	ROHS3
XC9220D093MR-G	XC9220	300kHz	757	Active	2.8V ~ 16V	SOT-25-5	ROHS3
XC9220D095MR-G	XC9220	500kHz	815	Active	2.8V ~ 16V	SOT-25-5	ROHS3
XC9221A093MR-G	XC9221	300kHz	961	Active	2.8V ~ 16V	SOT-25-5	ROHS3
XC9221A095MR-G	XC9221	500kHz	19049	Active	2.8V ~ 16V	SOT-25-5	ROHS3
XC9221A09AMR-G	XC9221	1MHz	809	Active	2.8V ~ 16V	SOT-25-5	ROHS3

Engineering Selection Recommendations

All listed substitute parts maintain Active product status with Torex Semiconductor Ltd, ensuring continued manufacturer support and supply chain stability. All parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Direct Frequency Match (1MHz): XC9220A09AMR-G and XC9220C09AMR-G provide identical switching frequency operation to the primary part XC9221C09AMR-G. These parts are suitable for direct substitution when XC9221 series availability is constrained. XC9220A09AMR-G offers higher inventory availability (3200 units) compared to the primary part.

Alternative Frequency Options: Parts operating at 300kHz (XC9220A093MR-G, XC9220D093MR-G, XC9221A093MR-G) and 500kHz (XC9220B095MR-G, XC9220C095MR-G, XC9220D095MR-G, XC9221A095MR-G) are electrically and mechanically compatible. Selection of these variants requires application-level evaluation of switching frequency impact on system performance. XC9221A095MR-G demonstrates highest inventory availability (19049 units) among all substitutes.

All substitute parts share identical package specifications (SOT-25-5), operating temperature range (-40°C ~ 85°C), and moisture sensitivity level (MSL 1), enabling direct PCB layout compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can XC9220 series parts directly replace XC9221C09AMR-G?

A: Yes. XC9220A09AMR-G and XC9220C09AMR-G are direct electrical and mechanical equivalents operating at identical 1MHz switching frequency. Both parts share the same SOT-25-5 package, input voltage range (2.8V ~ 16V), output configuration, and control features. No circuit redesign is required.

Q: What is the significance of the switching frequency variants (300kHz, 500kHz, 1MHz)?

A: Switching frequency affects EMI characteristics, component size requirements, and efficiency profile. The 1MHz variants (XC9220A09AMR-G, XC9220C09AMR-G, XC9221A09AMR-G) match the primary part's frequency. Lower frequency options (300kHz, 500kHz) may reduce EMI but typically require larger passive components. Selection depends on application-specific design constraints.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use SC-74A / SOT-753 package with SOT-25-5 supplier device package designation. All are surface mount components with identical pinout and footprint compatibility.

Q: Which substitute part has the best inventory availability?

A: XC9221A095MR-G offers the highest inventory level at 19049 units. This part operates at 500kHz switching frequency and is otherwise electrically equivalent to the primary part.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL Level 1 (unlimited moisture sensitivity) and REACH unaffected status, meeting current regulatory requirements.

Q: Can I use a 300kHz or 500kHz variant if the original design specifies 1MHz?

A: Substitution with different switching frequencies requires application-level evaluation. Frequency changes affect inductor and capacitor selection, EMI performance, and efficiency characteristics. Circuit redesign may be necessary depending on application requirements.

Q: What control features are included in these parts?

A: All substitute parts include Enable and Soft Start control features, matching the primary part's functionality for regulated power-up sequencing and device enable/disable control.

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