XC9140A392MR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9140A392MR-G is a synchronous step-up DC/DC converter from the Torex XC9140 series, manufactured by Torex Semiconductor Ltd. It utilizes PFM control to provide a fixed output voltage of 3.9 V with a maximum output current of 100 mA. The device operates within an input voltage range of 1.8 V to 5 V and features a low quiescent current of 6.4 uA and a standby current of 100 nA. Packaged in a compact SOT-25-5 format, it supports surface mount installation and functions reliably across an operating temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for improved efficiency
• PFM control mode for optimized light-load performance
• Ultra-low standby current consumption
• Compact SOT-25-5 package design

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronics
• Low-power sensor nodes
• Mobile communication devices
• Wearable health monitors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific output voltage (3.9 V) and package type (SOT-25-5) against your schematic requirements. Confirm that the input voltage range (1.8 V to 5 V) aligns with your power source. Ensure compatibility with the required operating temperature range (-40°C to +85°C). Check for RoHS compliance status if mandated by your project specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.9 V output is required from a variable or single-cell battery source. It is suitable for applications prioritizing low quiescent current and small footprint over high output current capabilities. Compare against other XC9140 variants if different output voltages are needed.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9140 family of synchronous step-up converters. These ICs are designed for battery-operated equipment requiring efficient voltage boosting. The '392' suffix indicates the specific 3.9 V output setting, while 'MR-G' denotes the SOT-25-5 package and lead-free finish.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other XC9140 variants with different fixed output voltages, such as XC9140A331MR-G (3.3 V) or XC9140A371MR-G (3.7 V), provided the voltage requirement can be adjusted.