Torex Semiconductor Ltd. (TOKYO Prime: 6616) has announced the launch of its new XC8115/XC8116 Series multifunction load switch ICs, designed to deliver ultra-low-power performance while integrating key power management functions for industrial and consumer electronic applications.
The newly introduced devices stand out for achieving 0µA current consumption during both active operation and standby mode, a feature that can significantly reduce power loss in battery-powered systems and energy-harvesting applications. As demand grows for longer battery life and more efficient power management in compact electronic devices, the XC8115/XC8116 Series aims to address these challenges through a combination of low power consumption, compact design, and integrated functionality.
According to the company, the ICs do not require external input or output capacitors for operation, allowing standalone use and helping engineers reduce component count and PCB footprint. This capability supports space-constrained designs while simplifying circuit implementation.
Traditionally, power line ON/OFF control requires multiple discrete components. Torex said the XC8115/XC8116 Series enables designers to build compact power control circuits while maintaining zero-current consumption. The devices also integrate several application-specific functions that are commonly required in modern electronic systems.
The XC8115 incorporates externally adjustable soft-start functionality and a CL discharge feature that rapidly discharges output capacitors when power is turned off. These capabilities make it suitable for power sequencing applications involving microcontrollers (MCUs) and field-programmable gate arrays (FPGAs), where controlled startup behavior is critical.
Meanwhile, the XC8116 features reverse current blocking when the switch is disabled, helping prevent unwanted current flow to backup power supplies in power backup circuits. The device is available in both active-high (EN) and active-low (ENB) control versions, enabling designers to switch between two power supply lines using a single control signal. This functionality can simplify the implementation of compact power multiplexer circuits.
Both devices allow designers to externally adjust soft-start time through a capacitor, helping suppress inrush current and reduce voltage drops during startup. This feature is particularly beneficial for systems powered by high-impedance energy sources such as coin-cell batteries.
To enhance reliability and system protection, the XC8115 and XC8116 integrate short-circuit protection and thermal shutdown functions, safeguarding circuits from excessive current and over-temperature conditions.
The new load switch ICs are offered in the compact DFN1515-6A package measuring 1.5 × 1.5 × 0.38 mm, as well as the widely used SOT-25 package. The package options make the devices suitable for applications ranging from high-density portable electronics to industrial equipment requiring robust mounting reliability.
