XC9302A373MR-G

DC DC Switching Controllers Overview

The XC9302A373MR-G is a step-up and step-down DC/DC controller IC from Torex Semiconductor, part of the XC9301/XC9302 series. It operates with a fixed switching frequency of 300kHz and supports an input voltage range of 2V to 10V. The device utilizes PWM control and features a maximum duty cycle of 92%. Designed for surface mount installation, it is housed in an SOT-25-5 (SC-74A) package. The component functions as a positive output buck-boost converter controller without synchronous rectification or clock synchronization capabilities.

DC DC Switching Controllers Feature Summary

• Integrated step-up and step-down DC/DC conversion topology for flexible voltage regulation
• Fixed 300kHz switching frequency operation for consistent performance
• Supports wide input voltage range from 2V to 10V
• Includes enable control feature for power management

DC DC Switching Controllers Applications

• Battery-powered portable electronic devices requiring voltage stabilization
• Systems with varying input supply levels needing buck-boost regulation
• Embedded applications utilizing single-cell lithium-ion battery inputs
• General-purpose DC/DC conversion in compact surface-mount designs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix MR-G corresponds to the reel packaging configuration with a factory pack quantity of 3000 units. Confirm the operating temperature range is -40°C to 85°C for your application environment. Ensure compatibility with the SOT-25-5 footprint during PCB layout. Cross-reference the datasheet revision date to confirm technical specifications match current production standards.

DC DC Switching Controllers Selection Notes

Select this controller when a fixed 300kHz frequency is required for EMI considerations. Choose this model over the XC9301 series if the specific internal reference or pinout differences are necessary for the design. Consider the non-synchronous nature of the device when evaluating efficiency requirements against external MOSFET selection. Verify that the 92% maximum duty cycle meets the input-to-output voltage ratio constraints of the target application.

DC DC Switching Controllers Part Context

This component belongs to the XC9301/XC9302 series of PWM and PWM/PFM switching controllers. It shares the same core architecture as the XC9301A373MR-G but may differ in specific electrical characteristics or internal configurations defined by the manufacturer. The series is designed for low-power applications requiring efficient voltage conversion in small packages.

DC DC Switching Controllers Replacement Considerations

The XC9301A373MR-G is a related part within the same series. Verify pin compatibility and specific electrical parameter differences before substitution. No other direct public substitute part numbers are confirmed in the provided documentation.