Torex has developed the XC8115/XC8116 Series, multifunction load switch ICs that achieve 0 µA current consumption. Featuring ultra-low power consumption, saving space, operation up to 105 °C, and functions required for power sequence control, these multifunction load switch ICs are easy to use across a wide range of applications, including industrial equipment and consumer electronics.
The most significant feature of the XC8115/XC8116 Series is its ability to dramatically reduce power consumption by achieving 0 µA operating current during both active operation and standby mode. This makes the devices ideal for applications requiring minimal power loss, such as battery-powered equipment using small batteries and energy harvesting systems.
In addition, the ICs operate without requiring input or output capacitors, enabling standalone operation and contributing to further space-saving PCB designs. Power line ON/OFF control is typically implemented using multiple discrete components. By using the XC8115/XC8116 Series, designers can easily build compact ON/OFF circuits while maintaining 0 µA current consumption.
The XC8115/XC8116 Series incorporates application-specific functions such as externally adjustable soft-start time, CL discharge for rapid output capacitor discharge (XC8115), and reverse current blocking during the OFF state (XC8116).
The XC8115 features externally adjustable soft-start and CL discharge functions, making it suitable for power sequence control required by FPGAs and MCUs.
The XC8116 incorporates a reverse current blocking function when the switch is turned OFF, making it suitable for applications such as preventing reverse current to a backup power supply in backup power circuits. In addition, the device is available in both EN (active-high) and ENB (active-low) versions, allowing two power supply lines to be switched using a single control signal. This enables simple and space-saving power multiplexer circuit designs.
Both the XC8115 and XC8116 allow the soft-start time to be externally adjusted with a capacitor. This feature helps suppress inrush current and prevent voltage drops during startup, particularly in applications using high-impedance power sources such as coin-cell batteries. For circuit protection, both devices incorporate short-circuit protection and thermal shutdown (over-temperature protection), ensuring safe operation by protecting the circuit when a short circuit occurs on the load side.
The devices are available in the compact, low-profile DFN1515-6A package (1.5 × 1.5 × 0.38 mm) as well as the highly mountable SOT-25 package. They are suitable for a wide range of applications, from compact electronic devices requiring high-density PCB layouts to industrial equipment demanding high mounting reliability.
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| XC8115/XC8116 series evaluation board. |