R1224N182L-TR-FE

Overview

The R1224N182L-TR-FE is a Buck DC/DC controller from Nisshinbo Micro Devices, designed for PWM step-down conversion. It operates within an input voltage range of 2.3 V to 18.5 V and delivers a fixed output voltage of 1.8 V. The device features a switching frequency of 180 kHz and supports up to 100% duty cycle. It functions in non-isolated topologies with a quiescent current of 20 uA. The component is housed in an SOT-23-5 package and is rated for operation between -40°C and +85°C.

Feature Summary

• Supports PWM and VFM step-down DC-DC conversion modes
• Fixed 1.8 V output voltage configuration
• Low quiescent current consumption for efficiency
• Non-isolated buck topology design

Applications

• Battery-powered portable electronics
• General-purpose low-voltage power management systems
• Embedded devices requiring stable 1.8 V supply rails

Procurement Notes

Verify the specific suffix 'L-TR-FE' against official datasheets to confirm packaging and tape/reel specifications. Ensure compatibility with surface mount assembly processes given the SOT-23-5 package type. Cross-reference RoHS compliance status using manufacturer documentation rather than distributor summaries.

Selection Notes

Select this controller when a fixed 1.8 V output is required without external feedback adjustment. Consider the 180 kHz switching frequency for EMI constraints and inductor size trade-offs. Evaluate the 2.3 V minimum input voltage against source availability to ensure proper regulation under all load conditions.

Part Context

This component belongs to the R1224N series of switching controllers by Nisshinbo Micro Devices. It is categorized under PMIC - Power Management ICs, specifically as a PWM step-down DC/DC converter controller. The series focuses on efficient voltage regulation for compact electronic applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.