XC9237B40CMR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237B40CMR-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor. It operates within an input voltage range of 2 V to 6 V and provides a fixed output voltage of 4.0 V. The device supports a maximum output current of 600 mA with a switching frequency of 1.2 MHz. Key electrical parameters include a quiescent current of 15 uA and an operating temperature range from -40°C to +85°C. It utilizes a SOT-25-5 surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification topology for high efficiency
• Built-in driver transistor for compact design
• Low quiescent current operation

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronics
• Mobile communication devices
• Consumer handheld equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific output voltage configuration against the official datasheet, as suffixes in this series denote fixed voltage levels. Confirm the package type matches the required PCB footprint. Ensure compliance with RoHS directives if applicable to the target market. Cross-reference the manufacturer part number with authorized distributor listings to validate authenticity and current production status 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 battery or similar 2 V to 6 V source. The low quiescent current makes it suitable for applications requiring extended standby times. The integrated synchronous rectifiers reduce external component count compared to non-synchronous alternatives. Verify that the 600 mA load requirement does not exceed thermal limits in the intended enclosure.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9237 series of 600mA synchronous step-down converters. The series shares common architectural features including built-in driver transistors and fixed output voltage options. Variations within the series are primarily distinguished by their specific output voltage settings and minor functional suffixes. The XC9237 series is designed for space-constrained applications requiring efficient power management.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes may include other XC9237 variants with different fixed output voltages if system requirements allow. Check for pin-compatible alternatives from the same manufacturer family. Verify that any replacement maintains the 600 mA output current capability and 1.2 MHz switching frequency.