IR3883MTRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The IR3883MTRPBF is a single-phase synchronous buck regulator from the SupIRBuck series, manufactured by Infineon Technologies. It operates with a fixed switching frequency of 800 kHz and delivers a maximum output current of 3 A. The device accepts an input voltage range of 2.5 V to 14 V and provides an adjustable output voltage between 0.5 V and 5 V. It utilizes EaSy COT technology for transient response management. The component is housed in a compact 16-PQFN (3x3 mm) package and supports industrial operating temperatures from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side power MOSFETs within a single compact package to minimize solution size.
• Employs EaSy COT control architecture to achieve fast transient response without requiring large output capacitance.
• Includes built-in protection mechanisms such as overcurrent protection, thermal shutdown, and undervoltage lockout.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for field-programmable gate arrays (FPGAs)
• Power supply stages for digital signal processors (DSPs)
• Voltage regulation for network equipment and telecommunications infrastructure

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and moisture sensitivity level before procurement, as these factors impact storage and reflow soldering requirements. Confirm that the intended application environment aligns with the specified industrial temperature range. Ensure compatibility with the target board layout regarding the small PQFN footprint and thermal pad connection. Check for any recent lifecycle status updates or recommended replacement parts from the manufacturer.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, high-efficiency solution is required for moderate current loads up to 3 A. The fixed 800 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the EaSy COT topology if rapid load transients are expected, as it reduces the need for excessive output capacitance. Evaluate the 2.5 V to 14 V input range against the system's available power rails to ensure adequate headroom.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to Infineon’s SupIRBuck family of integrated power modules, which combine controllers and power stages into small footprints. The IR3883 specifically targets applications where space constraints are critical but moderate current delivery is still necessary. It serves as a bridge between discrete solutions and higher-current multi-phase regulators, offering a balance between performance and board area efficiency.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for updated versions within the IR38xx series that may offer improved thermal performance or different pinouts. Verify if newer generations provide enhanced efficiency at light loads or support wider input voltage ranges. Ensure any substitute maintains the same 3A current capability and compatible control interface.