ICE2AS01G Equivalent & Substitute Parts

Part Overview

The ICE2AS01G is an offline switch flyback converter IC manufactured by Infineon Technologies, designed for isolated power management applications with 100kHz switching frequency. This component operates in the 8.5V to 21V supply voltage range and integrates comprehensive fault protection including current limiting, overload, overvoltage, and overtemperature protection.

The ICE2AS01G is classified as obsolete. Identifying suitable substitute components is necessary to maintain design continuity and ensure availability for new production runs or system updates.

Substiute Parts

ICE2AS01G

Infineon TechnologiesIn Stock: 4366ICE2AS01G Datasheet

Current PartRFQ

ICE3AS03LJGXUMA1

Infineon TechnologiesIn Stock: 3635ICE3AS03LJGXUMA1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICE2AS01G is based on the following critical parameters that must align between the main part and substitute components:

Core Compatibility Criteria:

• Topology: Flyback converter architecture
• Output Isolation: Isolated configuration
• Package / Case: 8-SOIC (0.154", 3.90mm Width) form factor
• Mounting Type: Surface Mount
• Switching Frequency: 100kHz operation
• Fault Protection: Current Limiting, Overload, Overvoltage, Overtemperature protection

Allowable Parameter Variations:

• Voltage - Supply (Vcc/Vdd): Substitute range must encompass or exceed the original 8.5V ~ 21V specification
• Voltage - Start Up: Substitute value may differ within design tolerance
• Duty Cycle: Substitute value may vary based on topology optimization
• Operating Temperature: Substitute range must support the application requirements
• Control Features: Substitute may include additional features beyond the original Soft Start

The ICE3AS03LJGXUMA1 meets all core compatibility criteria and is classified as an active product, making it a direct substitute for the obsolete ICE2AS01G.

Parameter Comparison

Engineering Selection Recommendations

The ICE3AS03LJGXUMA1 is the direct substitute for the obsolete ICE2AS01G based on the following factors:

Product Status: The ICE3AS03LJGXUMA1 is classified as Active, ensuring long-term availability and supply chain continuity compared to the obsolete ICE2AS01G.

Compliance & Certifications: The ICE3AS03LJGXUMA1 is RoHS3 Compliant, meeting current environmental and regulatory requirements. Both parts maintain REACH Unaffected status and EAR99 export classification.

Packaging & Mounting: Both components utilize identical 8-SOIC (0.154", 3.90mm Width) packaging with Surface Mount configuration, enabling direct PCB layout compatibility without redesign.

Functional Equivalence: Both parts implement isolated flyback topology with 100kHz switching frequency and identical fault protection mechanisms (Current Limiting, Open Loop, Overload, Overvoltage, Overtemperature protection).

Parameter Alignment: The substitute part's supply voltage range (10.5V ~ 25V) encompasses the original specification (8.5V ~ 21V). Operating temperature range differences (-25°C ~ 130°C versus -40°C ~ 150°C) must be evaluated against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can the ICE3AS03LJGXUMA1 be used as a direct replacement for the ICE2AS01G without PCB modifications?

A: Yes. Both components share identical 8-SOIC (0.154", 3.90mm Width) packaging and Surface Mount configuration, enabling direct pin-compatible substitution without PCB layout changes.

Q: What are the key differences between these two parts?

A: The primary differences are product status (Obsolete versus Active), supply voltage range (8.5V ~ 21V versus 10.5V ~ 25V), startup voltage (14.6V versus 18V), duty cycle (72% versus 75%), and operating temperature range (-40°C ~ 150°C versus -25°C ~ 130°C). Both maintain identical topology, switching frequency, package, and fault protection features.

Q: Is the ICE3AS03LJGXUMA1 suitable for applications requiring -40°C operation?

A: The ICE3AS03LJGXUMA1 operates from -25°C to 130°C. Applications requiring -40°C minimum operating temperature must evaluate alternative solutions or confirm that the -25°C lower limit is acceptable for the specific use case.

Q: Does the substitute part require design changes for supply voltage compatibility?

A: The substitute part's supply voltage range (10.5V ~ 25V) encompasses the original range (8.5V ~ 21V). Applications operating below 10.5V must be evaluated to determine if the higher startup voltage (18V versus 14.6V) impacts system performance.

Q: What is the packaging format difference between these parts?

A: The ICE2AS01G is supplied in standard packaging, while the ICE3AS03LJGXUMA1 is supplied in Tape & Reel (TR) format. Both use identical 8-SOIC case dimensions and are compatible with automated assembly processes.

Q: Are both parts RoHS compliant?

A: The ICE2AS01G does not specify RoHS status. The ICE3AS03LJGXUMA1 is RoHS3 Compliant, meeting current environmental regulations for new designs and production.