XC9237A3MCMR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237A3MCMR-G is a synchronous step-down DC/DC converter from Torex Semiconductor. It features a built-in P-channel MOS driver transistor and N-channel switching transistor, enabling the use of ceramic output capacitors. The device operates within an input voltage range of 2.0V to 6.0V and provides a fixed output voltage of 3.0V with a maximum output current of 600mA. It supports selectable switching frequencies of 1.2MHz or 3.0MHz. The IC allows manual switching between PWM control and automatic PWM/PFM modes for optimized efficiency across load ranges.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Built-in high-speed soft-start function typical at 0.25ms for quick turn-on
• Manual selection between PWM and automatic PWM/PFM switching control modes
• Integrated C-L discharge function to rapidly reduce output voltage upon shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered equipment utilizing ceramic output capacitors
• Systems requiring fast transient response and low ripple

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MR' against official documentation to confirm reel packaging and pinout configuration. Ensure the fixed 3.0V output aligns with system requirements, as adjustable variants exist within the series. Confirm thermal performance in the target application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model for applications requiring a fixed 3.0V output and 600mA capability. Consider the 1.2MHz or 3.0MHz frequency options based on external component size constraints. Verify that the 2.0V minimum input voltage meets the lowest battery level requirements of the design.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the XC9237 series of synchronous-rectification type DC/DC converters. The series is characterized by high efficiency and stable power supply capabilities using minimal external components. It is designed for portable applications where space and power consumption are critical factors.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for XC9237A3* variants with different package codes if footprint changes are acceptable. Verify compatibility with XC9236 series if automatic mode switching is preferred over manual selection.