Passives
Torex expands lineup of 3ALoad Switch IC
27th February 2025
Harry Fowle
The XC8114 series is a load switch IC designed to operate within a voltage range of 1.5V–6V and delivering a maximum output current of 3A. It replicates the functionality of an ideal diode and integrating key features such as an enable (EN) pin, overcurrent limiting, inrush current limiting, and thermal shutdown protection.
This IC integrates an ideal diode function that achieves ultra-low loss equivalent to a diode forward voltage (VF) of just 20mV.This is approximately about 1/20th of the forward voltage typically found in Schottky barrier diodes used for reverse current protection, significantly extending battery life. Furthermore, Despite the VF being as low as 20mV, the reverse current from VOUT to VIN remains at 0μA, truly embodying the characteristics of an ideal diode. These features make it easy to implement output OR circuits and effectively reduce power consumption in backup battery applications.
The series uses constant current limiting and fold-back current limiting to manage overcurrent. The fold-back method limits short-circuit current to 60mA, allowing for safe operation even in short-circuit conditions. The thermal shutdown function prevents IC damage due to overheating.
These features enable the easy implementation of a reverse current prevention circuit with ultra-low loss and comprehensive protection functions. The device is also suitable for output OR-connection circuit configurations.
Furthermore, its 3A output current capability makes it ideal for high-current applications such as USB power lines and various power supply interfaces.
The XC8114 series is available in a compact, low-profile WLP-4-04 package (0.82 × 1.48 × h0.495mm), making it ideal for space-constrained applications with limited board area or height restrictions. Additional package options include:SOT-89-5 (4.5 × 4.6 × h1.6mm).These package variations provide compatibility with industrial equipment, ensuring ease of assembly and rework.
Torex will continue to swiftly develop products that meet market needs and contribute to a richer and more abundant society.
