August 16, 2012 - Fairchild Korea, a specialist manufacturer of analog IC drivers, announced new load switches from Fairchild Semiconductor at its Korean office today. The newly announced load switches are said to provide power efficiency and advanced protection features for mobile and consumer electronics applications.

The field where load switches are currently required is low-power applications, so it can be said that most of them are portable devices.

The newly announced Intelli Max advanced load management switch product family has several characteristics. First and foremost is Inrush Current Protection. Inrush Current refers to the momentary peak voltage that occurs when power is first applied to any product. While this peak voltage may not be significantly applicable in systems using large voltage levels, in the case of small portable devices commonly used today, when low current and low voltage are used, the momentary peak voltage can affect the device's performance. Therefore, the Intelli Max product can be good news for R&D companies developing small portable devices.

Inrush Current Protection can be used in various applications. Through features such as slew rate control, overcurrent limiting, thermal shutdown protection, reverse current blocking, and low operating input voltage, it can handle multiple channel configurations and various applications using high voltage and current loads. Turn-on control is used to implement this.

Five options are mentioned, and a total of 5 options can be used.
For these various applications, configuration by option is possible. Currently, it is said that the types created can result in dozens of variations depending on current and voltage levels.

In particular, Fairchild, which has strengths in lighting solutions, stated that this product also provides off-the-shelf performance, reduced component count, and improved efficiency for Lighting Industrial Applications as a single-chip solution, making it possible to approach dynamic power challenges.

In the case of reverse current: An example from the production line of mobile phones... when the cable is removed, reverse current can occur, and this function can be well utilized in such cases.
3A RCB Protection SR Load Switch
In the case of mobile phones, 2A is typically used, but when burst spikes occur, it can reach up to 3A. Therefore, this product is designed to cover up to 3A.

It is also used for wireless charging.
Seamless Power Source Transition Challenge
In particular, when switching from wireless charging to wired charging, while competitors' switches experience a significant voltage drop, Fairchild's switch does not drop as much and continues charging seamlessly. This function is said to have adverse effects on the device when voltage suddenly drops like this. ???

Additionally, there are many other functions, representative ones being FlagB & PGood Design. This informs the system when shutdown occurs due to various circumstances. It tells how much power is currently continuing to flow in and for what reason the function has shut down, etc. When the device is shut down, it informs the consumer what actions should be taken.

In the case of this Intelli Max, domestically and internationally


Currently, in the case of Galaxy S3, it can maintain standby with only 1.1A. In such cases, the intermediate switcher plays an important role. In the case of Intelli Max, this function is now made possible. That is, ultra-low-power standby is enabled, and this can be seen in more detail at the 53-minute mark in the video.

Is it possible to purchase by option??



Furthermore, these various functions can be configured by option according to client requests to determine functionality.


Check: What is FET degradation and what is Bypass?

GaN (Gallium Arsenide) process technology is currently widely used.

Price down 30% PCB size down 4.50%..


Application to mobile devices
When power suddenly drops downward, it affects the system.
In the case of FlagB, it becomes the concept of throwing information to the system.