The MIC2155YML is a high-efficiency synchronous buck regulator from Micrel, now part of Microchip Technology. This regulator is designed to provide a stable and efficient power supply for various electronic devices. It is particularly well-suited for applications requiring high current and small solution size.

Applications:

• Point-of-load regulators
• Notebook computers
• Networking equipment
• Industrial power supplies
• Portable devices
• Set-top boxes

Features:

• High efficiency
• Wide input voltage range
• Adjustable output voltage
• Synchronous rectification
• Internal compensation
• Overcurrent protection
• Thermal shutdown

Benefits:

• High efficiency: Minimizes power loss and heat generation, leading to longer battery life and improved system reliability.
• Versatile input voltage: Accepts a wide range of input voltages, making it suitable for various power supply configurations.
• Flexible output voltage: Adjustable output voltage allows for customization to specific application requirements.
• Simplified design: Internal compensation reduces the need for external components, simplifying the design process and reducing board space.
• Protection against damage: Overcurrent protection and thermal shutdown prevent damage to the regulator and the load in case of faults.

Technical Specifications:

The MIC2155YML typically operates with an input voltage range from 4.5V to 26V and can deliver output currents up to 3A or more. It utilizes synchronous rectification to improve efficiency by replacing the Schottky diode with a MOSFET. The switching frequency is typically in the range of a few hundred kHz, allowing for the use of small external components. The package is usually a small MLF or QFN package, enabling a compact solution. The operating temperature range typically spans from -40°C to +125°C.

The MIC2155YML is a robust and efficient buck regulator that provides a reliable power supply for a wide range of electronic devices. Its high efficiency, small size, and comprehensive protection features make it a popular choice for demanding applications.