R1224N332G-TR-FE

Overview

The R1224N332G-TR-FE is a non-isolated buck DC/DC controller from the Nisshinbo R1224N series. It operates with an input voltage range of 2.3 V to 18.5 V and delivers an adjustable output voltage between 1 V and 18.5 V. The device utilizes PWM and VFM switching modes at a frequency of 300 kHz, supporting up to 100% duty cycle. Packaged in SOT-23-5, it functions within a temperature range of -40°C to +85°C.

Feature Summary

• Supports combined PWM and VFM control modes for efficient operation across varying load conditions
• Enables adjustable output voltage regulation within a wide input range
• Operates without isolation requirements for standard step-down applications

Applications

• Battery-powered portable electronic devices requiring efficient power management
• General-purpose step-down conversion in embedded systems
• Industrial equipment utilizing non-isolated DC/DC topologies

Procurement Notes

Verify component authenticity through authorized Nisshinbo distributors or certified suppliers. Confirm datasheet revision and RoHS compliance status prior to integration. Ensure ordering suffixes match exact specifications. Request batch traceability documentation for quality assurance protocols. Validate package integrity against SOT-23-5 standards upon receipt.

Selection Notes

Select this controller when a fixed 3.3 V equivalent output is required via external feedback network configuration within the 1 V to 18.5 V range. Consider the 300 kHz switching frequency for passive component sizing. Evaluate thermal performance within the -40°C to +85°C operational window. Compare against other R1224N variants if different input limits or frequencies are necessary.

Part Context

This component belongs to the R1224N family of switching controllers designed for high-efficiency step-down applications. It complements other models like R1224N102M and R1224N252G by offering specific electrical characteristics tailored for broad input voltage ranges. The series emphasizes compact SMD packaging and low quiescent current capabilities.

Replacement Considerations

R1224N102M-TR-FE offers similar buck topology but operates at 180 kHz. R1224N252G-TR-FE provides comparable functionality within the same series. Verify pin compatibility and control mode differences before substitution.