IR3823MTRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The IR3823MTRPBF is a synchronous buck switching regulator IC from Infineon Technologies, designed for point-of-load applications. It features an adjustable output voltage range from 0.6V to 18.06V and delivers a maximum output current of 3A. The device operates with a fixed internal switching frequency of 300kHz, though it supports an external synchronization range of 300kHz to 1.5MHz. It accepts an input voltage between 5.5V and 21V. The component is housed in a compact 15-PowerVFQFN package (5x6mm) and is rated for an operating junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side power MOSFETs within a single synchronous buck topology for efficient step-down conversion.
• Utilizes SupIRBuck technology to minimize external component count and reduce solution footprint.
• Includes built-in protection mechanisms against over-current, over-temperature, and short-circuit conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for digital signal processors
• Power distribution networks for field-programmable gate arrays
• Voltage regulation for memory modules and embedded systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact ordering suffix to ensure correct packaging configuration, as variations may exist between tape-and-reel and cut-tape formats. Confirm that the specific variant matches the required thermal performance and pinout compatibility for the target PCB layout. Cross-reference the manufacturer's latest documentation to validate active status and any potential design warnings or lifecycle changes associated with this part number.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a moderate current capacity of 3A is sufficient for the load requirements. The fixed 300kHz switching frequency offers a balance between efficiency and passive component size. Ensure the input voltage range aligns with the system supply rails. Consider the thermal dissipation capabilities of the 15-PowerVFQFN package relative to the expected ambient temperature and board copper area for adequate heat spreading.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the SupIRBuck family of integrated power modules, which combine controllers and power stages into small footprints. It serves as a simplified alternative to discrete buck converter designs, reducing board space and assembly complexity. The series targets applications requiring reliable, compact DC-DC conversion in industrial and consumer electronics environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.