R1224N362L-TR-FE

Overview

The R1224N362L-TR-FE is a non-isolated Buck DC/DC controller manufactured by Nisshinbo Micro Devices. It operates with an input voltage range of 2.3 V to 18.5 V and delivers a fixed output voltage of 3.6 V. The device utilizes a PWM control topology with a switching frequency of 180 kHz and supports up to 100% duty cycle. Designed for surface-mount applications, it is housed in a compact SOT-23-5 package. The controller functions within a temperature range of -40°C to +85°C and features a low operating supply current of 20 µA.

Feature Summary

• Implements PWM step-down conversion topology for efficient voltage regulation
• Provides a fixed 3.6 V output suitable for standard logic levels
• Operates with minimal quiescent current to support power-sensitive designs

Applications

• Portable electronic devices requiring stable 3.6 V rails
• Battery-powered systems utilizing Buck converter topologies
• Embedded circuits needing non-isolated DC/DC regulation

Procurement Notes

Verify the specific suffix 'L' against the manufacturer's official datasheet to confirm pinout compatibility and functional specifications. Ensure that the required output voltage matches the fixed 3.6 V specification provided in the component documentation. Cross-reference the SOT-23-5 package dimensions with your PCB footprint library to guarantee mechanical fit before finalizing procurement orders.

Selection Notes

Select this component when a fixed 3.6 V output is required from an input range extending up to 18.5 V. The 180 kHz switching frequency offers a balance between component size and efficiency. Consider the SOT-23-5 package constraints for thermal management and board space. This controller is appropriate for applications where shutdown functionality is not required, as indicated by the absence of a dedicated shutdown pin in the verified specifications.

Part Context

This part belongs to the R1224N series of switching controllers from Nisshinbo Micro Devices. The series focuses on Buck converter applications with various fixed output voltages. The R1224N362L-TR-FE specifically addresses the need for a 3.6 V regulated supply in compact form factors. It shares common family characteristics such as low standby current and wide input voltage tolerance with other variants in the lineup.

Replacement Considerations

Direct substitutes include other R1224N series variants with identical SOT-23-5 packaging and compatible electrical parameters. Verify that alternative parts maintain the same 3.6 V fixed output and 180 kHz switching frequency to ensure circuit performance consistency without redesign.