XC9221A09AER-G

DC DC Switching Controllers Overview

The XC9221A09AER-G is a multi-purpose step-down DC/DC controller IC from Torex Semiconductor. It operates with an input voltage range of 2.8 V to 16 V and supports a maximum output current of 3 A. The device utilizes a buck topology with a fixed switching frequency of 1 MHz and achieves up to 100% duty cycle. It features adjustable output voltage and low operating supply current of 40 uA. The component is housed in a USP-6C package, rated for operation between -40°C and +85°C, and lacks a shutdown function.

DC DC Switching Controllers Feature Summary

• Supports synchronous rectification technology for efficient power conversion
• Capable of 100% duty cycle operation for minimal voltage drop applications
• Designed for compact designs with small external component requirements

DC DC Switching Controllers Applications

• Portable electronic devices requiring efficient step-down regulation
• Battery-powered equipment utilizing the wide input voltage range
• General purpose power management circuits within PMIC systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix ER against official Torex documentation to confirm the USP-6C package configuration. Ensure compatibility with the required adjustable output voltage settings. Confirm RoHS compliance status through the manufacturer's certification documents before integration into final assemblies.

DC DC Switching Controllers Selection Notes

Select this controller when a non-isolated buck topology is required with high input voltage tolerance up to 16 V. The adjustable output feature allows flexibility for various load requirements. Consider the 1 MHz switching frequency for balancing efficiency and passive component size. Verify that the absence of a shutdown pin meets the system control logic requirements.

DC DC Switching Controllers Part Context

This component belongs to the XC9221 series of synchronous step-down DC/DC controllers. The series is characterized by high efficiency and compact footprint options. The XC9221A09AER-G specifically denotes the adjustable output variant in the USP-6C package, distinguishing it from fixed voltage or different package versions within the same family.

DC DC Switching Controllers Replacement Considerations

Consult official Torex cross-reference lists for verified substitutes. Alternative packages such as SOT-25-5 exist within the series but require pinout verification.