XC9265B211MR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9265B211MR-G is a synchronous step-down PFM DC/DC converter manufactured by Torex Semiconductor. It operates within an input voltage range of 2 V to 6 V and provides a fixed output voltage of 2.1 V. The device supports a maximum output current of 50 mA through a single output channel. Key electrical specifications include a quiescent current of 500 nA and an operating supply current of 500 nA. It functions reliably across a temperature range from -40°C to +85°C. The component utilizes a SOT-25-5 surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Ultra-low power consumption with minimal static and operating currents for extended battery life
• Synchronous rectification topology ensures high conversion efficiency at light loads
• Fixed output voltage configuration eliminates external feedback resistor requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronic devices requiring efficient power management
• Low-power microcontroller systems needing stable regulated voltage rails
• IoT sensors and wearables with strict energy conservation constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MR' corresponds to the required tape-and-reel packaging format compatible with automated assembly processes. Confirm that the fixed 2.1 V output aligns precisely with the target circuit design, as this variant lacks adjustable output options. Ensure the 50 mA current rating meets the peak load demands of the application without exceeding thermal limits within the specified operating temperature range.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 2.1 V rail is required with minimal component count. The SOT-25-5 package offers a compact footprint suitable for space-constrained designs. Consider the 50 mA output limit against system peak current needs; higher current applications may require variants from the same series with increased capacity. Verify compatibility with the 2 V to 6 V input supply range typical of single-cell lithium-ion or alkaline battery configurations.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the XC9265 series of ultra-low power synchronous step-down converters. The series is characterized by its ability to maintain low quiescent currents while delivering regulated outputs. Variants within the family differ primarily in output voltage settings and maximum output current capabilities, allowing designers to choose the optimal part for specific voltage and load requirements.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Substitutes must match the 2.1 V fixed output, 50 mA current rating, and SOT-25-5 package. Other XC9265 series parts with different output voltages or current ratings are not direct replacements. Cross-reference pinouts and electrical characteristics carefully to ensure functional equivalence in the target circuit.