The MIC2211-MMYML is a high-efficiency, 2MHz PWM synchronous step-down regulator from Micrel (now Microchip Technology). It is designed to provide a compact and efficient power solution for various portable and battery-powered applications.

Applications

• Portable Devices
• Battery-powered equipment
• Point-of-Load (POL) regulators
• Smartphones and Tablets
• Wireless Devices

Features

• High Efficiency: Up to 95% efficiency
• 2MHz PWM Operation: Allows for smaller external components
• Synchronous Rectification: Improves efficiency and reduces power dissipation
• Input Voltage Range: 2.7V to 5.5V
• Output Voltage: Adjustable
• Current Limit Protection: Protects the device from overcurrent conditions
• Short-Circuit Protection: Provides protection against short circuits
• Thermal Shutdown Protection: Prevents overheating
• Small Package: MLF package

Benefits

• Extended Battery Life: High efficiency maximizes battery runtime.
• Compact Solution Size: 2MHz switching frequency allows for smaller external components.
• Improved Thermal Performance: Synchronous rectification reduces power dissipation.
• Robust Protection: Overcurrent, short-circuit, and thermal shutdown protection ensure reliable operation.
• Flexibility: Adjustable output voltage caters to a variety of applications.

Additional Details

The MIC2211-MMYML operates at a high switching frequency of 2MHz, which allows the use of smaller external inductors and capacitors, resulting in a compact solution size. The synchronous rectification feature improves efficiency by replacing the Schottky diode with a low RDS(on) MOSFET, reducing power losses. The device incorporates several protection features, including current limit, short-circuit, and thermal shutdown, to ensure reliable operation under fault conditions. It is available in a small MLF (Micro LeadFrame) package, making it suitable for space-constrained applications.

Technical Specifications:

• Input Voltage: 2.7V to 5.5V
• Output Voltage: Adjustable (Consult datasheet for specific range)
• Switching Frequency: 2MHz
• Package: MLF