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Product Detailed Parameters
- Description：IC REG BUCK CTRLR SMD
- Series：-
- Mfr：Infineon Technologies
- Package：Tube
- Output Type：-
- Function：-
- Output Configuration：-
- Topology：-
- Number of Outputs：-
- Output Phases：-
- Voltage - Supply (Vcc/Vdd)：-
- Frequency - Switching：-
- Duty Cycle (Max)：-
- Synchronous Rectifier：-
- Clock Sync：-
- Serial Interfaces：-
- Control Features：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
Download product information
Overview
The Infineon Technologies 111-4193PBF is a surface-mount device (SMD) integrated circuit functioning as a DC-DC switching controller, specifically designed for buck regulator applications. It serves as a synchronous rectification controller intended to drive external MOSFETs in power supply circuits. The component supports Direct Current-to-Direct Current conversion topologies and is engineered to enhance system efficiency by optimizing the switching behavior of downstream power devices.
Feature Summary
- Integrated synchronous rectification control logic for driving external MOSFETs
- Designed for high-efficiency buck converter topologies
- Surface-mount package configuration for automated assembly
Applications
- Secondary side control in AC-DC power supplies
- High-efficiency DC-DC step-down voltage regulation
- Power management units requiring optimized switching performance
Procurement Notes
Verify the specific datasheet version and pinout compatibility with your target PCB layout before integration. Confirm that the RoHS compliance status matches your manufacturing requirements. Ensure the operating temperature range aligns with your system's thermal design constraints. Cross-reference the part number suffix to confirm lead-free specifications and packaging type.
Selection Notes
Select this component when designing synchronous buck converters that require dedicated secondary-side control. It is suitable for applications prioritizing efficiency improvements through optimized MOSFET gate driving. Consider its SMD form factor for compact board designs. Evaluate its compatibility with your chosen primary-side controller and output voltage requirements.
Part Context
This component belongs to Infineon's portfolio of power management integrated circuits. It complements their broader range of OptiMOS and StrongIRFET technologies. The product line targets modern power supply designs aiming to meet stringent energy efficiency standards such as DOE regulations. It represents a specialized solution for secondary-side rectification control.
Replacement Considerations
Consult official Infineon documentation for direct cross-references. Verify functional equivalence regarding control logic and drive capabilities. Ensure pinout compatibility if substituting on existing layouts.
