XC9302A323MR-G

DC DC Switching Controllers Overview

The XC9302A323MR-G is a Buck-Boost DC/DC switching controller IC from Torex Semiconductor. It operates with a fixed switching frequency of 300kHz and supports an input voltage range of 2V to 10V. The device provides a single positive output with a maximum duty cycle of 92%. It utilizes PWM control and lacks synchronous rectification or clock synchronization features. The component is rated for operation between -40°C and +85°C and is housed in an SOT-25-5 (SC-74A) surface-mount package.

DC DC Switching Controllers Feature Summary

• Supports step-up and step-down buck-boost topology for flexible voltage regulation
• Integrates a fixed 300kHz internal oscillator for consistent switching performance
• Operates within a wide supply voltage range of 2V to 10V
• Features enable pin control for power management applications

DC DC Switching Controllers Applications

• Battery-powered portable electronic devices requiring voltage stabilization
• Single-cell lithium-ion battery systems with varying charge states
• Embedded systems needing stable power from fluctuating source voltages
• Industrial sensors operating across wide temperature ranges

DC DC Switching Controllers Procurement Notes

Verify the complete part number including the suffix against official Terox Semiconductor documentation to ensure correct switching frequency and package variant. Confirm that the specific revision matches the required electrical characteristics for your design. Cross-reference the datasheet version date to ensure compliance with current manufacturing standards. Check for any specific handling requirements associated with the SOT-25-5 package during assembly processes.

DC DC Switching Controllers Selection Notes

Select this controller when a fixed 300kHz frequency is suitable for the application's EMI constraints and component size limits. Choose this model over other XC9302 variants if the specific input voltage window of 2V to 10V aligns with the power source. Ensure the external inductor and capacitor values are calculated for buck-boost operation at this specific frequency. Consider the lack of synchronous rectification when evaluating efficiency requirements for low-load scenarios.

DC DC Switching Controllers Part Context

This component belongs to the XC9302 series of PWM/PFM switching controllers designed by Torex Semiconductor. The series includes various models differentiated by switching frequencies and output configurations. The XC9302A323MR-G specifically denotes the 300kHz variant within this family, sharing common architectural features with its siblings while differing in timing parameters.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other XC9302 series models such as XC9302A313MR-G or XC9302A532MR-G, provided the switching frequency difference is acceptable for the circuit design. Verify pin compatibility and thermal characteristics before substitution. Alternative manufacturers may offer similar buck-boost controllers, but parameter matching must be strictly verified.