XC9237B3LC4R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237B3LC4R-G is a synchronous step-down DC/DC converter from the Torex XC9237 series. It provides a fixed output voltage of 3.85V with a maximum output current of 600mA. The device operates within an input voltage range of 2V to 6V and features a switching frequency of 1.2MHz. It includes a built-in 0.42Ω driver transistor for high efficiency. The component supports operation at temperatures between -40°C and +85°C and is housed in a compact WLP-5-03 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture utilizing a built-in driver transistor for efficient power conversion
• Fixed output voltage configuration ensuring stable power delivery without external feedback resistors
• Compact wafer-level packaging designed for space-constrained surface-mount applications

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient step-down power regulation
• Battery-powered systems needing stable voltage conversion from single-cell sources
• Embedded circuits utilizing low-voltage input rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix LC4R against official Torex documentation to confirm the fixed 3.85V output and WLP-5-03 package type. Ensure compatibility with your PCB footprint, as this model uses a distinct wafer-level package compared to standard SOT or QFN variants. Cross-reference the manufacturer part number directly with authorized distributors to avoid counterfeit components and confirm current production status.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.85V output is required from a 2V to 6V input source. It is suitable for designs prioritizing small board area due to its WLP-5-03 form factor. Consider the 600mA current limit and 1.2MHz switching frequency for filter component selection. This model is appropriate for applications where external feedback resistors are undesirable.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9237 series of synchronous step-down converters manufactured by Torex Semiconductor. The series is characterized by high efficiency and compact packaging options. The XC9237B3LC4R-G specifically denotes the variant with a fixed 3.85V output and WLP-5-03 package, distinguishing it from adjustable or other fixed voltage versions in the same family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other XC9237 series parts with identical electrical characteristics but different packages or voltages, such as XC9237B3CC4R-G (3.3V) or XC9237B3EDMR-G (adjustable). Verify pinout compatibility if replacing with non-WLP packages.