XC9237C38DER-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237C38DER-G is a synchronous step-down DC/DC converter from the XC9237 series by Torex Semiconductor. It features a built-in driver transistor with an on-resistance of 0.42Ω, supporting a maximum output current of 600mA. The device operates within an input voltage range of 2V to 6V and provides a fixed output voltage of 3.8V. It utilizes current-mode control with a selectable switching frequency of either 1.2MHz or 3.45MHz. The component is housed in a compact 6-pin USPEL package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification with a built-in driver transistor for high efficiency.
• Supports flexible switching frequency selection between 1.2MHz and 3.45MHz.
• Employs current-mode control architecture for stable regulation.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power conversion
• Battery-powered equipment utilizing 2V to 6V input sources
• Embedded systems needing compact synchronous buck regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix DER-G against the official datasheet to confirm the package type and tape-and-reel specifications. Ensure the fixed output voltage matches the system requirement, as other variants in the XC9237 series offer different voltage options. Confirm compatibility with the intended switching frequency setting via external components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 3.8V output is required from a 2V-6V input source. The choice between 1.2MHz and 3.45MHz frequencies depends on the trade-off between component size and electromagnetic interference. The 600mA current rating suits moderate load applications. Verify that the thermal performance of the USPEL package meets the design's dissipation requirements under full load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the XC9237 series, which includes similar synchronous step-down converters like the XC9237C3DCMR-G and XC9237G2BC4R-G. These parts share common architectural features such as current-mode control and built-in driver transistors but differ in output voltage settings, switching frequencies, and package configurations.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other XC9237 series variants with identical 3.8V output and compatible packages, such as XC9237C38CMR-G if pinout compatibility allows. Cross-reference electrical parameters carefully, particularly the switching frequency options and maximum output current capabilities.