XC9140C202MR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9140C202MR-G is a synchronous step-up DC/DC converter IC from the Torex XC9140 series. It provides a fixed positive output voltage of 2V with a maximum output current of 100mA. The device operates within an input voltage range of 0.9V to 5.5V and utilizes PFM control for efficiency. Key electrical parameters include a typical operating supply current of 6.2uA and a standby current of 100nA. It functions reliably across a junction temperature range of -40°C to +85°C and is housed in a compact SOT-25 (SC-74A) surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification to enhance conversion efficiency compared to asynchronous designs.
• Utilizes Pulse Frequency Modulation (PFM) control architecture for optimized power management.
• Achieves ultra-low standby current consumption to extend battery life in portable applications.

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronic devices requiring efficient voltage boosting
• Mobile communication equipment and handheld terminals
• Consumer electronics utilizing single-cell lithium-ion or alkaline batteries

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MR-G' against the official Torex Semiconductor datasheet to confirm the package type and tape-and-reel configuration. Ensure compatibility with RoHS directives if required by your manufacturing standards. Cross-reference the part number with authorized distributors to validate authenticity and avoid counterfeit components, as minor suffix variations can indicate different packaging or environmental compliance levels.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 2V output is required from inputs ranging down to 0.9V. The synchronous topology makes it suitable for applications prioritizing efficiency over cost-sensitive non-synchronous alternatives. Consider the SOT-25 footprint constraints during PCB layout. This model is appropriate for systems where low quiescent current is critical for standby performance, distinguishing it from linear regulators or higher-current switching solutions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the XC9140 family of synchronous boost converters manufactured by Torex Semiconductor. The series is characterized by high efficiency and low current consumption. The XC9140C202MR-G specifically denotes the 2V output variant within this lineup, sharing common architectural features with other outputs like 3.6V or 4.0V while maintaining the same physical package and control logic.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the XC9140 series include XC9140C241MR-G (2.4V), XC9140C301MR-G (3.0V), and XC9140C361MR-G (3.6V). These parts share identical pinouts and functionality but differ in fixed output voltage. Verify that the system load requirements align with the specific voltage setting of any replacement unit.

Voltage Regulators - DC DC Switching Regulators FAQ

Does the XC9140C202MR-G include a shutdown function?

No, the standard XC9140C202MR-G does not feature a dedicated shutdown pin; it remains active based on its internal control logic.

What is the minimum input voltage for this converter?

The minimum operating input voltage is specified as 0.9V, allowing operation from nearly discharged single-cell batteries.