IR11682SPBF Equivalent & Substitute Parts

Part Overview

The IR11682SPBF is a secondary-side controller IC manufactured by Infineon Technologies, designed for synchronous rectifier applications in power supply systems. This 8-SOIC surface-mount device operates with a supply voltage range of 8.6V to 18V and a maximum supply current of 48 mA, supporting operating temperatures from -25°C to 125°C. The product is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design requirements and component procurement.

Substiute Parts

IR11682SPBF

Infineon TechnologiesIn Stock: 12484IR11682SPBF Datasheet

Current PartRFQ

DM7308G-65512-B1

Bel Power SolutionsIn Stock: 840DM7308G-65512-B1 Datasheet

MFR RecommendedRFQ

NCP5181DR2G

onsemiIn Stock: 5646NCP5181DR2G Datasheet

MFR RecommendedRFQ

SG1548J

Microchip TechnologyIn Stock: 1426SG1548J Datasheet

MFR RecommendedRFQ

UCC27210D

Texas InstrumentsIn Stock: 1997UCC27210D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the IR11682SPBF is determined by functional equivalence in power management and control applications. The critical parameters governing substitute selection are:

• Package compatibility: 8-SOIC surface-mount form factor for direct PCB replacement
• Supply voltage range: Minimum 8.6V to 18V operational capability
• Supply current: Maximum 48 mA operational requirement
• Operating temperature range: Support for -25°C to 125°C minimum
• Functional category: Secondary-side controller or gate driver IC for power supply applications
• RoHS compliance: ROHS3 compliance for regulatory alignment

The substitute parts identified fall into two functional categories: half-bridge gate drivers (NCP5181DR2G, UCC27210D) and power supply controllers (DM7308G-65512-B1, SG1548J). While these parts differ in package type and specific electrical characteristics, they serve equivalent roles in power management topologies where the IR11682SPBF would be deployed.

Parameter Comparison

Engineering Selection Recommendations

NCP5181DR2G (onsemi): This half-bridge gate driver IC shares the 8-SOIC package with the IR11682SPBF, enabling direct PCB footprint compatibility. Supply voltage range of 10V to 20V overlaps the IR11682SPBF specification. However, the product status is listed as Obsolete, limiting long-term availability. ROHS3 compliance is maintained.

UCC27210D (Texas Instruments): This half-bridge gate driver operates within 8V to 17V supply range, compatible with the IR11682SPBF voltage window. The 8-SOIC package provides direct PCB replacement capability. Product status is Last Time Buy, indicating limited future procurement windows. ROHS3 compliance is confirmed.

SG1548J (Microchip Technology): This power supply monitor IC operates across 4.5V to 35V, encompassing the IR11682SPBF supply range. The product maintains Active status, ensuring ongoing availability. However, the 16-CDIP through-hole package differs from the original 8-SOIC surface-mount form factor, requiring PCB redesign. RoHS non-compliance presents regulatory considerations.

DM7308G-65512-B1 (Bel Power Solutions): This digital power controller operates at 3V to 3.6V supply voltage, which falls below the IR11682SPBF minimum of 8.6V. The 64-VFQFN package represents a significant departure from the 8-SOIC footprint. Product status is Active with ROHS3 compliance. This part is functionally distinct and not recommended for direct substitution.

For applications requiring immediate component replacement with minimal PCB modification, NCP5181DR2G or UCC27210D are preferred due to 8-SOIC package compatibility, though both face availability constraints. SG1548J offers active product status but requires circuit board redesign.

Frequently Asked Questions (FAQ)

Q: Can NCP5181DR2G directly replace IR11682SPBF on the PCB?

A: Yes, NCP5181DR2G shares the 8-SOIC (0.154", 3.90mm Width) package with IR11682SPBF, enabling direct footprint compatibility without PCB layout modification. Pin-level functional equivalence must be verified against specific application schematics.

Q: Why is DM7308G-65512-B1 listed as a substitute if its supply voltage is 3V to 3.6V?

A: DM7308G-65512-B1 is included in the substitute list based on manufacturer cross-reference data provided in the source documentation. However, its 3V to 3.6V supply voltage range does not overlap with the IR11682SPBF requirement of 8.6V to 18V, making it unsuitable for direct substitution in most applications.

Q: What is the impact of SG1548J's RoHS non-compliance?

A: RoHS non-compliance may restrict use in applications subject to European Union Restriction of Hazardous Substances regulations or customer-mandated compliance requirements. Design teams must evaluate regulatory obligations before selecting this component.

Q: Are there package considerations when selecting between NCP5181DR2G and UCC27210D?

A: Both parts use the 8-SOIC package, eliminating package-related design constraints. Selection should be based on product availability status, supply voltage range compatibility with your specific application, and long-term procurement viability.

Q: What is the significance of "Last Time Buy" status for UCC27210D?

A: Last Time Buy indicates the manufacturer has announced end-of-life for this product. Customers have a final opportunity to purchase inventory before discontinuation. This status limits long-term design sustainability and may require transition planning to alternative components.