XC9220A09AMR-G Equivalent & Substitute Parts

Part Overview

The XC9220A09AMR-G is a Buck Regulator Positive Output Step-Down DC-DC Controller IC manufactured by Torex Semiconductor Ltd. This device functions as a transistor driver for step-down DC-DC conversion applications with a single output phase. The part operates across a 2.8V to 16V input supply range and features a 1MHz switching frequency with 100% maximum duty cycle capability. It is packaged in SOT-25-5 (SC-74A, SOT-753) surface mount configuration and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

The XC9220A09AMR-G is classified as an Active product with full availability. Substitute parts are necessary when addressing supply constraints, design optimization for specific switching frequency requirements, or when alternative series variants offer equivalent electrical performance within the same topology and package specification.

Key Parameters

Parameter	Value
Manufacturer	Torex Semiconductor Ltd
Category	Power Management (PMIC)
Function	Step-Down Buck Regulator Controller
Output Type	Transistor Driver
Output Configuration	Positive
Number of Outputs	1
Output Phases	1
Voltage Supply Range (Vcc/Vdd)	2.8V ~ 16V
Switching Frequency	1MHz
Duty Cycle (Max)	100%
Synchronous Rectifier	No
Clock Sync	No
Control Features	Enable, Soft Start
Operating Temperature Range	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-25-5
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS Code	8542.39.0001

Substitute Part Grouping Explanation

Substitution of the XC9220A09AMR-G is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

Topology: Buck (Step-Down)
Output Configuration: Positive
Number of Outputs: 1
Output Phases: 1
Voltage Supply Range: 2.8V ~ 16V
Duty Cycle (Max): 100%
Output Type: Transistor Driver
Package / Case: SC-74A, SOT-753
Supplier Device Package: SOT-25-5
Mounting Type: Surface Mount
Operating Temperature Range: -40°C ~ 85°C (TA)
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameter (Allows Substitution):

Switching Frequency: 300kHz, 500kHz, or 1MHz variants are interchangeable based on application requirements

All substitute parts listed maintain identical topology, output configuration, voltage specifications, package form factor, and compliance certifications. Variations in switching frequency (300kHz, 500kHz, 1MHz) represent design variants within the XC9220 and XC9221 series that serve different frequency optimization needs while maintaining full electrical and mechanical compatibility.

Parameter Comparison

Part Number	Series	Switching Frequency	Voltage Supply (Vcc/Vdd)	Duty Cycle (Max)	Package	Operating Temperature	Inventory (Pcs)
XC9220A09AMR-G	XC9220	1MHz	2.8V ~ 16V	100%	SOT-25-5	-40°C ~ 85°C	3200
XC9220A093MR-G	XC9220	300kHz	2.8V ~ 16V	100%	SOT-25-5	-40°C ~ 85°C	6200
XC9220B095MR-G	XC9220	500kHz	2.8V ~ 16V	100%	SOT-25-5	-40°C ~ 85°C	1107
XC9220C095MR-G	XC9220	500kHz	2.8V ~ 16V	100%	SOT-25-5	-40°C ~ 85°C	952
XC9220C09AMR-G	XC9220	1MHz	2.8V ~ 16V	100%	SOT-25-5	-40°C ~ 85°C	1152
XC9220D093MR-G	XC9220	300kHz	2.8V ~ 16V	100%	SOT-25-5	-40°C ~ 85°C	757
XC9220D095MR-G	XC9220	500kHz	2.8V ~ 16V	100%	SOT-25-5	-40°C ~ 85°C	815
XC9221A093MR-G	XC9221	300kHz	2.8V ~ 16V	100%	SOT-25-5	-40°C ~ 85°C	961
XC9221A095MR-G	XC9221	500kHz	2.8V ~ 16V	100%	SOT-25-5	-40°C ~ 85°C	19049
XC9221A09AMR-G	XC9221	1MHz	2.8V ~ 16V	100%	SOT-25-5	-40°C ~ 85°C	809
XC9221C093MR-G	XC9221	300kHz	2.8V ~ 16V	100%	SOT-25-5	-40°C ~ 85°C	20200

Engineering Selection Recommendations

Selection of substitute parts for the XC9220A09AMR-G must be based on the following engineering criteria:

Compliance and Certification Alignment: All listed substitute parts maintain ROHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification identical to the main part. Moisture sensitivity level remains constant at MSL 1 (Unlimited) across all variants, ensuring equivalent handling and storage requirements.

Electrical Compatibility: All substitute parts operate within the identical 2.8V to 16V supply voltage range and maintain 100% maximum duty cycle specification. The topology (Buck), output configuration (Positive), and output type (Transistor Driver) remain constant across all variants, ensuring functional equivalence in step-down DC-DC control applications.

Mechanical and Packaging Compatibility: All substitute parts utilize the SOT-25-5 package (SC-74A, SOT-753) in surface mount configuration. Pin count, footprint, and mounting requirements are identical, enabling direct board-level substitution without PCB redesign.

Frequency-Based Selection: The primary differentiator among substitute parts is switching frequency. Selection should be based on application-specific requirements:

1MHz variants (XC9220A09AMR-G, XC9220C09AMR-G, XC9221A09AMR-G): Higher frequency operation suitable for applications requiring reduced inductor size and faster transient response.
500kHz variants (XC9220B095MR-G, XC9220C095MR-G, XC9220D095MR-G, XC9221A095MR-G): Mid-range frequency for balanced performance and component sizing.
300kHz variants (XC9220A093MR-G, XC9220D093MR-G, XC9221A093MR-G, XC9221C093MR-G): Lower frequency operation suitable for applications with relaxed EMI requirements or larger inductor tolerance.

Product Status: All substitute parts are classified as Active products with current manufacturing status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q1: Can XC9220A09AMR-G be directly replaced with XC9221A09AMR-G?

A: Yes. Both parts operate at 1MHz switching frequency and share identical electrical specifications (2.8V ~ 16V supply, 100% duty cycle, positive output configuration). Both are packaged in SOT-25-5 and maintain equivalent compliance certifications. The primary difference is series designation (XC9220 vs. XC9221), which does not affect functional compatibility in step-down DC-DC controller applications.

Q2: What is the impact of switching frequency variation when substituting parts?

A: Switching frequency affects inductor and output capacitor sizing, EMI characteristics, and efficiency profile. A 1MHz part (XC9220A09AMR-G) requires smaller passive components compared to a 300kHz variant (XC9220A093MR-G). Substitution across frequency variants requires verification that the application's power stage design accommodates the new frequency specification. The controller IC itself remains functionally equivalent.

Q3: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status identical to the main part XC9220A09AMR-G. Moisture sensitivity level (MSL 1 - Unlimited) is consistent across all variants.

Q4: Can substitute parts be used interchangeably on the same PCB without layout modification?

A: Yes, for parts within the same frequency class. All substitute parts utilize the SOT-25-5 package (SC-74A, SOT-753) with identical pin configuration and footprint. Direct board-level substitution is possible without PCB redesign. However, when substituting across different frequency variants, external passive component values (inductor, capacitors) may require adjustment based on the new switching frequency.

Q5: Which substitute part offers the highest inventory availability?

A: XC9221A095MR-G offers the highest current inventory at 19,049 pieces. This 500kHz variant provides equivalent electrical and mechanical compatibility with the main part while offering superior supply availability.

Q6: Are there any differences in control features between XC9220 and XC9221 series?

A: Based on provided specifications, both XC9220 and XC9221 series variants include Enable and Soft Start control features. Functional control capability is equivalent across both series.

Q7: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the identical temperature range of -40°C to 85°C (TA), ensuring equivalent thermal performance and reliability across industrial and commercial applications.

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