The XC2164D51VMR is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor Ltd. It is designed for applications requiring high efficiency and a small footprint. It integrates a PWM control circuit and a synchronous rectifier, resulting in high efficiency and low ripple noise.

Applications:

• Portable Devices
• Battery-Powered Equipment
• Power Management Systems
• Point-of-Load (POL) Regulators
• Smartphones and Tablets

Features:

• Synchronous Rectification: Improves efficiency by replacing the Schottky diode with a MOSFET.
• High Efficiency: Achieves high efficiency over a wide load range.
• Low Ripple Noise: Minimizes output voltage ripple.
• Small Package: Available in a compact package for space-constrained applications.
• PWM Control: Provides stable and efficient regulation.
• Built-In Soft Start: Prevents inrush current during startup.
• Over-Current Protection (OCP): Protects the device from over-current conditions.

Benefits:

• Extended Battery Life: High efficiency extends battery life in portable devices.
• Reduced Heat Dissipation: Efficient operation reduces heat generation.
• Smaller Board Space: Compact package saves board space.
• Stable Output Voltage: Provides stable and accurate output voltage.
• Improved System Reliability: Over-current protection enhances system reliability.

The XC2164D51VMR's synchronous rectification significantly improves efficiency compared to traditional asynchronous converters. This is particularly important in battery-powered devices, where maximizing battery life is crucial. The device also features a built-in soft start circuit, which prevents inrush current during startup and minimizes stress on the power supply.

The small package size allows for easy integration into space-constrained applications. The PWM control circuit ensures stable and efficient regulation over a wide range of input voltages and output currents. The over-current protection circuit protects the device from damage in the event of an over-current condition.

Technical Specifications (Typical): Input Voltage Range: 2.5 V to 5.5 V, Output Voltage: 1.8V (This specific part number is configured to 1.8V output), Output Current: 600mA, Switching Frequency: 2.5 MHz, Package: VMR. Consult the manufacturer's datasheet for precise specifications and operating conditions.