R1224N602G-TR-FE

Overview

The R1224N602G-TR-FE is a step-down DC/DC controller manufactured by Nisshinbo Micro Devices. It operates with an input voltage range of 2.3 V to 18.5 V and supports a switching frequency of 300 kHz. The device integrates PWM and Variable Frequency Mode (VFM) control for efficient power management. It is housed in a compact SOT-23-5 package and is rated for operation within a temperature range of -40°C to +85°C. This component functions as a switching controller designed for buck converter applications.

Feature Summary

• Supports both Pulse Width Modulation (PWM) and Variable Frequency Mode (VFM) control strategies for optimized efficiency across varying load conditions.
• Accepts a wide input voltage range from 2.3 V to 18.5 V, enabling compatibility with diverse power sources.
• Operates at a fixed switching frequency of 300 kHz, facilitating the use of smaller external passive components.

Applications

• Battery-powered portable electronic devices requiring efficient step-down conversion
• General-purpose low-voltage DC/DC power supply circuits
• Embedded systems utilizing buck topology for voltage regulation

Procurement Notes

Verify the specific suffix 'G' against the manufacturer's official documentation to confirm pinout and functional specifications, as suffixes may denote variations in packaging or internal configuration. Ensure the ordering quantity aligns with the standard reel quantity of 3000 units if purchasing in bulk. Cross-reference the datasheet revision date to ensure compliance with current design requirements and environmental standards such as RoHS.

Selection Notes

Select this controller when a wide input voltage range up to 18.5 V is required for buck applications. The integrated PWM/VFM mode offers flexibility for optimizing efficiency at both light and heavy loads. Consider the SOT-23-5 package size for space-constrained designs. Verify that the 300 kHz switching frequency meets the electromagnetic interference (EMI) and thermal constraints of the target application environment.

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. The R1224N602G-TR-FE variant specifically defines the output voltage setting and package type within this family, distinguishing it from other models with different voltage outputs or packaging options.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Engineers should consult the manufacturer's official cross-reference documentation or contact technical support directly to identify compatible alternatives with matching electrical characteristics and pin configurations.