IR3623MTRPBF

DC DC Switching Controllers Overview

The IR3623MTRPBF is a high-frequency, dual-phase synchronous step-down controller designed for single or dual output configurations. It supports current sharing via inductor DCR sensing and features programmable switching frequencies up to 600 kHz. The device includes integrated power good outputs, soft-start capabilities, and thermal protection. Packaged in a 32-lead MLPQ format, it offers precise reference voltage accuracy and overcurrent protection mechanisms suitable for demanding power architectures.

DC DC Switching Controllers Feature Summary

• Dual synchronous buck controller with configurable independent or current-shared outputs
• Integrated output tracking and power-up/down sequencing capabilities
• Programmable switching frequency and soft-start timers for flexible design
• Comprehensive protection including hiccup current limit and latched overvoltage

DC DC Switching Controllers Applications

• Embedded telecom systems
• Distributed point-of-load power architectures
• Computing peripheral voltage regulators
• Graphics cards
• General DC/DC converters

DC DC Switching Controllers Procurement Notes

Verify the manufacturer designation as International Rectifier or Infineon Technologies, noting that International Rectifier was acquired by Infineon. Confirm the package type matches the 32-lead MLPQ specification. Ensure the component meets RoHS compliance standards required for modern electronics manufacturing. Check for any specific ordering suffixes that might indicate tape-and-reel packaging variations.

DC DC Switching Controllers Selection Notes

Select this controller when designing high-current applications requiring precise load balancing between phases. The DCR-based current sharing feature eliminates the need for external sense resistors, improving efficiency. Consider the programmable frequency range if EMI constraints require operation outside standard fixed frequencies. The integrated sequencing functions simplify multi-rail power supply designs without additional logic components.

DC DC Switching Controllers Part Context

This component belongs to the family of high-performance synchronous step-down controllers. It is functionally similar to the IR3622 but may offer specific configuration differences regarding phase alignment or control loop characteristics. It serves as a core power management IC for complex digital loads requiring stable and efficient voltage regulation.

DC DC Switching Controllers Replacement Considerations

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