The XC9216A12CDR is a synchronous step-down DC-DC converter manufactured by Torex Semiconductor Ltd. It's designed for applications requiring a highly efficient and compact power solution. This converter integrates a control IC and inductor in a single chip, minimizing the external component count and overall board space.

Applications

• Power management for portable devices
• Smartphones and tablets
• Wearable devices
• IoT (Internet of Things) devices
• Power supplies for microcontrollers and processors

Features

• Integrated Inductor: Reduces external component count and simplifies circuit design.
• Synchronous Rectification: Improves efficiency by replacing the Schottky diode with a MOSFET.
• High Efficiency: Achieves high power conversion efficiency, minimizing energy loss and heat generation.
• Low Supply Current: Contributes to longer battery life in portable applications.
• Compact Package: Available in a small package, ideal for space-constrained applications.
• Soft-Start Function: Limits inrush current during startup, preventing voltage drops and ensuring stable operation.
• Overcurrent Protection (OCP): Protects the converter and load from excessive current draw.
• Thermal Shutdown Protection (TSD): Protects the converter from overheating.

Benefits

• Reduced Board Space: The integrated inductor and compact package minimize the overall footprint of the power supply circuit.
• Improved Efficiency: Synchronous rectification and optimized design maximize power conversion efficiency, reducing energy waste.
• Simplified Design: The integrated inductor simplifies circuit design and reduces the number of external components required.
• Enhanced Reliability: Overcurrent and thermal shutdown protection features ensure robust and reliable operation.
• Longer Battery Life: High efficiency and low supply current contribute to extended battery life in portable applications.
• Stable Operation: The soft-start function ensures stable operation during startup, preventing voltage drops and system instability.

Additional Details

The XC9216A12CDR operates with an input voltage range typically from 2.5V to 5.5V. The output voltage is fixed at 1.2V. It also features a PWM control scheme to achieve stable output voltage and high efficiency across a wide range of load currents. Further technical specifications include switching frequency (typically 3MHz), operating temperature range, and package dimensions. The device is RoHS compliant.