XC9237C31D4R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237C31D4R-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor. It features a fixed output voltage of 3.1V and supports a maximum output current of 600mA. The device operates within an input voltage range of 2.0V to 6.0V. It utilizes a 1.2MHz switching frequency and employs current-mode control with pulse width modulation. The component is housed in a USPEL-6 package, measuring 1.8mm by 2.0mm. It functions across a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture with integrated P-channel and N-channel MOS transistors for high efficiency
• Manual selectable operation between PWM and auto PWM/PFM modes for optimized performance across load ranges
• Built-in fast soft-start circuitry to manage inrush current during startup
• Integrated overcurrent protection and UVLO functionality for system reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered equipment utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded systems needing stable low-voltage regulation from higher bus voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix D4R against the official datasheet to confirm the package type and tape-and-reel specifications. Ensure the ordering quantity aligns with the manufacturer's standard reel size requirements. Cross-reference the part number with the latest revision history to confirm compatibility with your design constraints.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.1V output is required without external resistor networks. It is suitable for designs prioritizing manual mode selection flexibility between continuous conduction and light-load efficiency. Consider the USPEL-6 footprint constraints and the 600mA current limit relative to the target application's peak demand.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9237 series of synchronous buck converters. The series distinguishes itself through manual mode switching capabilities, unlike the XC9236 which switches automatically. The 'C' designation indicates a fixed output voltage variant, while the 'D' typically denotes the specific package configuration used in this model.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other XC9237 variants with compatible output voltages and packages, such as XC9237C33D4R-G for 3.3V output. For non-fixed voltage applications, consider XC9237D-series parts. Verify pinout compatibility before substituting with different package types.