Littelfuse

Littelfuse LPWI Series Power Inductors: High Efficiency, Low Profile Solutions

Littelfuse offers the LPWI Series of Power Inductors, specifically designed to enhance the performance of DC-DC Converters and Power Management ICs commonly found in a wide range of Consumer Electronics and portable devices. These inductors are crucial for smoothing out undesirable power ripple, ensuring clear signals, and improving overall system efficiency.

Constructed using advanced ultrathin metal alloy composite film technology, the LPWI series provides excellent performance in a compact form factor. A key advantage is their magnetic shielding, which effectively minimizes electromagnetic interference (EMI), preventing crosstalk and ensuring reliable operation in dense circuit board layouts.

Key Features & Technical Specifications:

• Inductance Range: Available with inductance ratings from 0.24 µH up to 4.7 µH (measured at 1 MHz ±20%).
• DC Saturation Current: Supports typical DC saturation currents up to 7.6 A (at ΔL/L=30%). Typical ratings while operating at 40 ℃ range from 1.8 A to 5.8 A.
• DC Resistance: Features low typical DC resistance ratings from 17 mΩ to 230 mΩ, contributing to reduced power losses.
• Operating Temperature: Operates reliably across a broad temperature range from –40 ℃ to +125 ℃.
• Low Profile Design: Offered in ultra-thin profiles with maximum thicknesses of 800 µm (0.8 mm) or 1 mm.
• Standard Package Sizes: Available in international standard surface-mount device (SMD) sizes including 1608/0603, 2012/0805, 2016/0806, and 2520/1008.
• Environmental Compliance: Certified lead-free, halogen-free, and RoHS compliant.

Benefits of Littelfuse LPWI Power Inductors:

• Magnetically Shielded: Reduces EMI emissions and susceptibility.
• Low Voltage and Current Losses: Contributes to higher efficiency in power conversion circuits.
• Compact and Low Profile: Ideal for space-constrained portable and wearable applications.
• Compatible with Lead-Free Reflow Soldering: Facilitates easy integration into standard manufacturing processes.
• High Efficiency: Optimized for demanding power supply circuit applications.

Target Applications:

The Littelfuse LPWI Series is suitable for use in numerous applications requiring efficient power management and ripple filtering, including:

• Mobile Phones and Wearable Devices
• Tablets and Laptops
• Game Consoles and VR/AR Headsets
• Flat Screen TVs and Set Top Boxes
• IoT Modules and Dongles
• Printers and Point-of-Sale (POS) Terminals
• Video Recorders and SSDs
• Home Automation Systems
• Automotive Infotainment Systems

By providing high-performance, low-loss, and compact SMD power inductors, the Littelfuse LPWI Series offers a reliable solution for modern electronic designs focused on efficiency and miniaturization.