XC9142C40C0R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9142C40C0R-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor. It integrates a high-side N-channel MOSFET and features an internal oscillator operating at a fixed frequency of 1.5 MHz. The device provides a fixed output voltage of 4.0 V with a tolerance of ±2%. It supports an input voltage range from 2.5 V to 6.0 V and delivers a maximum output current of 1.0 A. Key electrical characteristics include a typical standby current of 3.0 µA and a shutdown current of 0.1 µA. The converter utilizes a PFM/PWM hybrid control scheme for enhanced efficiency across varying load conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-side N-channel MOSFET for compact solution design
• Employs PFM/PWM hybrid control to optimize efficiency under light and heavy loads
• Features built-in protection mechanisms including overcurrent, thermal, and undervoltage lockout

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered electronic devices
• Mobile communication equipment
• Digital cameras and camcorders

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number against official Torex Semiconductor documentation to ensure correct output voltage and package type. Confirm that the suffix 'G' indicates lead-free compliance as per RoHS standards. Cross-reference the manufacturer's latest datasheet for any updates on recommended operating conditions and thermal performance specifications before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 4.0 V output is required from a single-cell lithium-ion or lithium-polymer battery source. The fixed 1.5 MHz switching frequency allows for the use of small inductors and capacitors, reducing overall board space. Ensure the application load does not exceed the 1.0 A continuous current rating and that the input voltage remains within the specified 2.5 V to 6.0 V range for stable operation.

Voltage Regulators - DC DC Switching Regulators Part Context

This model belongs to the XC9142 series of synchronous buck converters designed for low-power applications. The series is characterized by high efficiency and small external component requirements. The specific variant C40C denotes the 4.0 V output voltage setting, while R-G indicates the SOT-25-6 package with green (lead-free) termination plating.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements must match the 4.0 V fixed output, 1.0 A current capability, and SOT-25-6 package. Verify pin compatibility and switching frequency if external timing components are used. Consult Torex Semiconductor for qualified alternative part numbers within the same product family or comparable offerings from other manufacturers ensuring identical electrical parameters.