The 1156AS-2R2M is a shielded power inductor manufactured by Toko America Inc. It is designed for use in DC-DC converters and other power supply applications. The '2R2M' designation indicates an inductance value of 2.2 μH with a specified tolerance. Shielded inductors are preferred in applications where electromagnetic interference (EMI) needs to be minimized.

Applications

• DC-DC Converters: Used as energy storage elements in buck, boost, and buck-boost converters.
• Power Supplies: Employed in various types of power supplies, including switching power supplies and linear regulators.
• Noise Filtering: Used in power line filters to reduce noise and EMI.
• Voltage Regulators: Applied in voltage regulator circuits to maintain stable output voltages.
• Portable Devices: Suitable for use in smartphones, tablets, and other portable electronic devices.

Features

• Shielded Construction: Reduces electromagnetic interference (EMI).
• Small Footprint: Allows for compact circuit designs.
• High Current Capability: Can handle relatively large currents without saturation.
• Low DC Resistance (DCR): Minimizes power loss and improves efficiency.
• Surface Mount Technology (SMT): Designed for automated assembly.

Benefits

• Reduced EMI: Shielded construction minimizes electromagnetic interference with surrounding components.
• Compact Design: Small size allows for integration into space-constrained applications.
• High Efficiency: Low DCR minimizes power losses, improving overall efficiency.
• Stable Performance: Provides consistent performance over a wide range of operating conditions.
• Easy Assembly: SMT design simplifies the manufacturing process.

Technical Specifications

• Inductance (L): 2.2 μH ±20%.
• DC Resistance (DCR): Typically around 0.05 Ohms.
• Saturation Current (Isat): Typically around 2.5 A.
• Rated Current (Irms): Typically around 2.0 A.
• Shielding: Magnetically shielded.
• Operating Temperature Range: Typically -40°C to +85°C.
• Package Size: 1156 (Industry Standard).

The 1156AS-2R2M is designed for reflow soldering processes and should be handled according to standard SMT assembly guidelines. Its shielded construction and performance characteristics make it a suitable choice for demanding power supply applications.