The XC6401EE26DR is a synchronous step-down DC/DC converter IC manufactured by Torex Semiconductor Ltd. It is designed for high-efficiency power conversion in a small form factor. The device integrates the control IC and power MOSFETs, reducing the number of external components and simplifying PCB layout. This converter utilizes constant frequency PWM (Pulse Width Modulation) control for stable and efficient operation.

Applications

• Tablets: Powers the core processor, display, and other critical components.
• Point-of-Sale (POS) Systems: Provides regulated power for the system's processor, display, and peripheral devices.
• Medical Devices: Used in portable medical equipment such as glucose meters and heart rate monitors.
• Security Systems: Powers surveillance cameras, access control systems, and alarm panels.
• Industrial Control Systems: Provides reliable power for sensors, actuators, and microcontrollers.

Features

• Synchronous Rectification: Enhances efficiency by using MOSFETs for both high-side and low-side switches.
• Constant Frequency PWM Control: Ensures stable operation and predictable performance.
• Integrated Power MOSFETs: Reduces external component count and simplifies board design.
• Small Package Size: Enables compact and space-saving designs.
• Low Quiescent Current: Minimizes power consumption during standby and light-load conditions.
• Soft-Start Function: Limits inrush current during startup, preventing voltage drops and stress on components.
• Short-Circuit Protection: Protects the device and connected circuitry from damage due to short circuits.
• Over-Current Protection: Limits the output current to prevent overloading.
• Thermal Shutdown Protection: Disables the device when the junction temperature exceeds a safe limit.

Benefits

• High Efficiency: Minimizes power loss and maximizes battery life in portable applications.
• Compact Design: Reduces board space requirements and enables smaller product designs.
• Simplified PCB Layout: Lowers design complexity and reduces time to market.
• Enhanced Reliability: Integrated protection features ensure robust and dependable operation.
• Lower BOM Cost: Fewer external components reduce the overall cost of materials.
• Stable Output Voltage: Provides a consistent and regulated voltage supply to the load.
• Extended Battery Life: Low quiescent current minimizes power consumption during idle periods.

Additional Details

The XC6401EE26DR typically operates with an input voltage range of 2.7V to 5.5V and provides a fixed output voltage of 2.6V. The switching frequency is typically around 3 MHz, allowing for smaller external components. It's available in small packages like the SOT-25. Efficiency can reach up to 95% under optimal load conditions. A Power Good output is often included to signal when the output voltage is within the specified range. This device is suitable for applications requiring a small, efficient, and reliable power solution.