Maximizing Battery Life and Efficiency: New Generation of Load Switch ICs

In a significant development for the industrial technology sector, Littelfuse has made a remarkable stride with the introduction of five new Load Switch devices in their Protection ICs product line. This move by Littelfuse marks a significant advancement in power management technology.

These newly released Load Switch Integrated Circuits (ICs) are a blend of efficiency and functionality, designed to meet the growing demands of the electronics industry. With a focus on ultra-efficiency, these devices come in 2 and 4 A-rated models, featuring integrated true reverse current blocking (TRCB) and slew rate control. Their exceptional efficiency makes them ideally suited for a range of applications, particularly in mobile and wearable consumer electronics.

One of the standout features of these Load Switch ICs is their industry-leading low quiescent current (IQ), combined with low resistance-on (RON) and minimal shutdown current (ISD). This innovation allows designers to minimize parasitic leakage current, thus improving system efficiency and extending battery life. The combination of these features not only enhances the performance of electronic devices but also contributes to energy conservation.

These ICs are versatile and find applications across various sectors, including handheld devices, wearables, Internet of Things (IoT), SSD storage, building automation, and general consumer electronics. Bernie Hsieh, Assistant Product Manager of the Protection Semiconductor Business team at Littelfuse, emphasizes the significance of these ICs in supporting extended battery life for mobile and wearable devices. The compact chip-scale package of these ICs integrates multiple functions and offers the advantage of space-saving, a crucial factor in modern electronic device design.

Key advantages of these Load Switch ICs over previous solutions include:

  • Significantly longer battery lifetime due to power savings.
  • High-efficiency operation thanks to lower power consumption.
  • Integration of multiple functions like power MOSFET, reverse diode, discharge MOSFET, and passive components in a chip-scale package, leading to PCB space reduction.

The Load Switch IC series includes:

  1. LQ05021QCS4 – 5V, 2A with Slew Rate Control
  2. LQ05021RCS4 – 5V, 2A with True Reverse Current Blocking
  3. LQ05022QCS4 – 5V, 2A with Slew Rate Control
  4. LQ05041QCS6 – 5V, 4A with Slew Rate Control
  5. LQ05041RCS6 – 5V, 4A with True Reverse Current Blocking

These devices are packaged in small chip-scale packages with varying bump and pitch sizes, tailored to different application requirements.

Availability and further information about these Load Switch ICs can be accessed through Littelfuse distributors worldwide. Sample requests and detailed specifications are available on the Littelfuse website.

Littelfuse, with a history dating back to 1927, has consistently played a vital role in the industrial technology sector. With approximately 18,000 associates globally and a presence in over 20 countries, the company continues to innovate and provide reliable solutions across various markets, contributing significantly to a more sustainable, connected, and safer world.

Learn More: Load Switch – Littelfuse

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