The XC9111A401PR-G is a synchronous step-down DC/DC converter with integrated coil, manufactured by Torex Semiconductor Ltd. This highly integrated solution simplifies circuit design and reduces the overall board space required. It is designed for various applications that demand a compact and efficient power supply.

Applications:

• Portable Devices: Powering smartphones, tablets, and other mobile devices.
• Wearable Electronics: Suitable for smartwatches, fitness trackers, and similar devices.
• IoT Devices: Efficient power conversion for IoT sensors and modules.
• Camera Modules: Powering camera modules in various applications.
• Small Form Factor Applications: Where space is a primary constraint.

Features:

• Integrated Coil: Includes an integrated inductor for simplified design.
• Synchronous Rectification: Enhances efficiency by using synchronous rectification.
• Low Quiescent Current: Minimizes power consumption in standby mode.
• Overcurrent Protection (OCP): Protects the device from overcurrent conditions.
• Short Circuit Protection (SCP): Shuts down the device in case of a short circuit.
• Thermal Shutdown Protection (TSD): Prevents damage due to overheating.
• Soft-Start Function: Limits inrush current during startup.
• Compact Package: Small package size for space-saving applications.

Benefits:

• Simplified Design: Integrated coil reduces the number of external components.
• Improved Efficiency: Synchronous rectification increases conversion efficiency.
• Extended Battery Life: Low quiescent current minimizes power consumption.
• Enhanced Protection: Overcurrent, short circuit, and thermal protection features ensure reliability.
• Reduced Board Space: Compact package saves valuable PCB area.

Additional Details:

The XC9111A401PR-G operates with a PWM control scheme for output voltage regulation. The switching frequency is optimized for high efficiency and small size. The operating temperature range is typically -40°C to +85°C.