R1224N552G-TR-FE

Overview

The R1224N552G-TR-FE is a step-down DC/DC controller manufactured by Nisshinbo Micro Devices. It supports an input voltage range up to 18.5V and utilizes PWM/VFM switching modes for efficient power conversion. The device is housed in a compact SOT-23-5 package, suitable for space-constrained designs. As part of the R1224N series, it functions as a switching controller within the PMIC category, designed for stable operation in various electronic applications requiring regulated lower voltage outputs from higher input sources.

Feature Summary

• Supports high input voltage up to 18.5V
• Combines PWM and VFM control modes
• Compact SOT-23-5 surface mount package

Applications

• Portable electronic devices
• Battery-powered systems
• General purpose step-down power supplies

Procurement Notes

Verify the specific output voltage setting associated with the '552' suffix against official datasheets before procurement. Confirm that the SOT-23-5 package matches your PCB footprint requirements. Ensure compatibility with your target switching frequency and external component selections. Check current availability status through authorized channels as supply levels may fluctuate.

Selection Notes

Select this controller when an 18.5V input limit is required with mixed-mode efficiency optimization. Consider the SOT-23-5 form factor for tight board space constraints. Evaluate thermal performance based on expected load currents. Compare against other R1224N variants if different fixed output voltages are needed for the application.

Part Context

This component belongs to the R1224N series of switching controllers from Nisshinbo Micro Devices. The series focuses on step-down DC/DC conversion with integrated control logic. Variants within the family typically differ by output voltage settings, indicated by numerical suffixes in the part number, while sharing core architectural features and packaging options.

Replacement Considerations

Consult official substitution lists for direct equivalents. Cross-reference pinout compatibility and electrical specifications carefully. Verify that alternative parts support the same 18.5V input range and SOT-23-5 package.