XC9237C1MD4R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237C1MD4R-G is a synchronous step-down DC/DC converter from Torex Semiconductor. It features a built-in 0.6A driver transistor and operates with an input voltage range of 2V to 6V. The device delivers a fixed output voltage of 1.2V at up to 600mA load current. It utilizes a constant frequency current-mode control scheme with a switching frequency of 3.45MHz. The IC includes internal compensation, soft-start functionality, and protection circuits for overcurrent and thermal shutdown. It is housed in a compact SOT-25-5 package suitable for space-constrained applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification topology for high efficiency
• Built-in 0.6A power switch and driver
• Fixed 3.45MHz switching frequency
• Integrated overcurrent and thermal protection

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices
• Mobile communication equipment
• Digital cameras and camcorders
• Handheld gaming consoles

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix 'D4R-G' against the official Torex datasheet to confirm the specific output voltage and package variant. Ensure the ordering code matches the required 1.2V fixed output specification. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status if required by your manufacturing standards.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.2V output is required from a 2V to 6V input source. The 3.45MHz switching frequency allows for smaller external inductors and capacitors compared to lower-frequency alternatives. Consider the SOT-25-5 package size constraints and the 600mA continuous current limit for your load requirements. Evaluate thermal performance under maximum load conditions within the -40°C to +85°C operating range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9237 series of synchronous step-down converters. The series offers various fixed output voltages and packaging options. The XC9237C1MD4R-G specifically denotes the 1.2V output version in the SOT-25-5 package. Other variants in the series differ primarily in output voltage settings and physical footprint.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements must match the 1.2V fixed output, 600mA current rating, and SOT-25-5 package. Verify pin compatibility and electrical parameters such as switching frequency and input voltage range before substitution.