XC9142A21CMR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9142A21CMR-G is a synchronous step-up DC/DC converter manufactured by Torex Semiconductor. It operates with an input voltage range of 0.65V to 6V and provides a fixed output voltage of 2.1V. The device supports an output current of up to 350mA and features a low quiescent current of 17uA. It utilizes a 1.2MHz switching frequency and is housed in a compact SOT-25-5 package. The component functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for improved efficiency
• Ultra-low quiescent current consumption
• Fixed output voltage configuration
• Compact surface-mount packaging

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronics
• Low-voltage sensor power supplies
• Wearable devices
• IoT modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'A' indicates the 2.1V fixed output variant, as the XC9142 series uses letter codes for different voltage settings. Confirm the 'CMR-G' designation corresponds to the SOT-25-5 package and RoHS compliance. Cross-reference the manufacturer part number with distributor catalogs to ensure availability and correct revision status before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 2.1V output is required from a single-cell lithium battery or similar low-voltage source. The 1.2MHz frequency allows for smaller external inductors compared to lower-frequency alternatives. Ensure the load current does not exceed the 350mA limit and that the input voltage remains above the minimum operating threshold of 0.65V for stable regulation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9142 series of 0.8A synchronous step-up converters. The series offers various fixed output voltages determined by the middle letter code (e.g., A for 2.1V). It is designed for space-constrained applications requiring high efficiency at light loads. The family shares common control logic but differs in output voltage settings and sometimes switching frequencies depending on the specific sub-model.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other XC9142 variants with compatible packages if the output voltage requirement changes. For identical specifications, verify pin-to-pin compatibility with other manufacturers' 2.1V synchronous boost converters in SOT-25-5 packages. Ensure thermal performance and inductor selection remain suitable for the replacement device.