R1211D002B-TR-FE

Overview

The R1211D002B-TR-FE is a boost DC/DC controller manufactured by Nisshinbo Micro Devices Inc. It operates within an input voltage range of 2.5V to 6V and delivers a positive step-up output. The device supports a switching frequency of 700kHz with a maximum duty cycle of 90%. It is housed in a compact 6-pin SON package measuring 1.6x2.6mm. The component functions reliably across a temperature range of -40°C to +85°C, designed for efficient power management in space-constrained applications.

Feature Summary

• Integrates a high-frequency boost switching controller optimized for small form factor designs
• Supports wide input voltage ranges suitable for single-cell battery powered systems
• Features a miniature surface-mount package to maximize board space efficiency

Applications

• Portable consumer electronics requiring step-up voltage regulation
• Battery-powered devices utilizing single-cell lithium-ion or lithium-polymer sources
• Compact IoT modules with strict size constraints

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and electrical characteristics. Ensure compatibility with your PCB footprint and thermal requirements. Confirm availability status as supply conditions may vary. Cross-reference manufacturer documentation for any recent revisions to ensure design integrity.

Selection Notes

Select this component when a fixed 700kHz boost topology is required for moderate current applications. Consider the 90% duty cycle limit for input-to-output voltage ratios. Evaluate the SON package dimensions against available board real estate. Compare against alternative controllers if lower switching frequencies or different topologies are needed.

Part Context

This part belongs to the R1211 series of switching controllers from Nisshinbo Micro Devices. The series includes various configurations for boost and buck-boost applications. The D suffix typically denotes specific internal circuitry variations compared to other model variants within the same family line.

Replacement Considerations

R1211D002D-TR-FE: Similar boost controller with comparable specifications; verify exact electrical parameters and pin compatibility before substitution.