XC9505B093AR-G

Overview

The XC9505B093AR-G is a dual-channel DC-DC controller IC from Torex Semiconductor, designed for step-up and step-down voltage regulation. It operates with a standard switching frequency of 300kHz and supports a maximum duty cycle of 100%. The device features PWM control with automatic PWM/PFM switching capabilities to optimize efficiency across varying load conditions. It provides positive output configuration suitable for buck and boost regulator topologies.

Feature Summary

• Dual-channel architecture supporting simultaneous step-down and inverting operations
• Automatic switching between PWM and PFM modes for enhanced light-load efficiency
• Supports 100% duty cycle operation for precise voltage regulation
• Positive output configuration compatible with external N-channel MOSFETs

Applications

• Portable electronic devices requiring efficient power management
• Industrial equipment needing stable multi-rail power supplies
• Battery-powered systems utilizing step-up/step-down conversion
• Consumer electronics with variable input voltage requirements

Procurement Notes

Verify the specific suffix AR-G against official Torex documentation to confirm package type and tape/reel specifications. Ensure compatibility with external components such as inductors and capacitors based on the 300kHz switching frequency. Cross-reference the part number with authorized distributors to avoid counterfeit units, as market authenticity concerns have been noted for this series.

Selection Notes

Select this component when a dual-output solution combining buck and boost functionalities is required within a single controller. The 300kHz frequency offers a balance between component size and efficiency. Consider the automatic PWM/PFM mode if light-load power consumption is critical. Verify that the external MOSFETs can handle the current demands at the specified switching speed.

Part Context

This model belongs to the XC9505 series, which are PWM-controlled DC-DC controllers featuring automatic PWM/PFM switching. The series is designed for applications requiring flexible voltage regulation with high efficiency. The XC9505B093AR-G specifically denotes the version with the AR-G package and suffix configuration, distinct from other variants in the family.

Replacement Considerations

Direct substitutes include other XC9505 series variants with matching pinouts and electrical characteristics. Verify that alternative parts support the same 300kHz frequency and 100% duty cycle capability. Ensure the replacement maintains the dual-channel buck/inverting topology.