XC9142B42CMR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9142B42CMR-G is a synchronous step-up DC/DC converter manufactured by Torex Semiconductor. It operates with an input voltage range of 0.65 V to 6 V and provides a fixed output voltage of 4.2 V. The device supports a maximum output current of 800 mA. Key electrical parameters include a switching frequency of 1.2 MHz, a quiescent current of 17 uA, and an operating supply current of 1.5 mA. It functions within a temperature range of -40°C to +85°C and utilizes a SOT-25-5 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for high conversion efficiency
• Integrated power switch eliminates external inductor requirements for compact designs
• Low quiescent current consumption extends battery life in portable applications

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronic devices
• Mobile communication equipment
• Handheld instruments requiring stable voltage regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'CMR' against the official datasheet to confirm the fixed output voltage and package type. Ensure compatibility with the target PCB footprint for the SOT-25-5 package. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status if required by project specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 4.2 V output is required from a single-cell lithium-ion or similar battery source. The 1.2 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 800 mA output capability relative to the load requirements. Evaluate thermal performance within the specified operating temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9142 series of synchronous step-up converters. The series offers various fixed output voltages and packaging options. The 'B' designation typically indicates specific electrical characteristics such as switching frequency and input voltage range within the family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

XC9142B42DMR-G: Different package (WLP-6 vs SOT-25-5). XC9142C42CMR-G: Higher switching frequency (3 MHz). XC9142F42CMR-G: Wider input voltage range.