R1224N602M-TR-FE

Overview

The R1224N602M-TR-FE is a non-isolated Buck DC/DC controller manufactured by Nisshinbo Micro Devices. It operates within an input voltage range of 2.3 V to 18.5 V and delivers adjustable output voltages from 1 V to 18.5 V. The device supports a switching frequency of 180 kHz with a maximum duty cycle of 100%. It functions in PWM or VFM modes and draws a typical operating supply current of 20 uA. Designed for surface mount installation, it is housed in a compact SOT-23-5 package and rated for operation between -40°C and +85°C.

Feature Summary

• Supports high-frequency switching up to 180 kHz for efficient power conversion
• Enables 100% duty cycle operation for minimal voltage drop applications
• Maintains low quiescent current consumption during active operation
• Provides adjustable output voltage control across a wide input range

Applications

• Battery-powered portable electronic devices
• General-purpose step-down power supply circuits
• Embedded systems requiring isolated control logic
• Industrial equipment with variable input voltage sources

Procurement Notes

Verify the specific suffix 'M' indicates the fixed 0.6V reference voltage configuration when sourcing replacements. Confirm that the 'TR-FE' designation corresponds to the standard tape-and-reel packaging format required for automated assembly processes. Ensure the component meets RoHS compliance standards if environmental regulations apply to the final product assembly line.

Selection Notes

Select this controller for designs requiring a single-output Buck topology without integrated power switches. It is suitable for applications needing a wide input voltage range up to 18.5 V. Consider the external MOSFET requirements as this is a controller rather than a complete regulator. Evaluate thermal management needs based on the SOT-23-5 package limitations.

Part Context

This component belongs to the R1224N series of switching controllers from Nisshinbo Micro Devices. The series focuses on cost-effective, high-efficiency step-down power management solutions. The R1224N602M variant specifically targets applications requiring a precise 0.6 V feedback reference voltage for accurate output regulation.

Replacement Considerations

Direct substitutes include other Nisshinbo R1224N series controllers with compatible reference voltages. Verify pinout compatibility with the SOT-23-5 footprint before integration. Cross-reference switching frequencies and input voltage ranges to ensure circuit stability.