S-1122B40MC-L8ZTFG

Application Field

The S-1122B40MC-L8ZTFG is a linear voltage regulator from ON Semiconductor with one of the widest input voltage ranges in the market, designed with advanced technology and stringent quality control. It is used in a wide variety of integrated devices, from pattern recognition systems to automotive systems. It is ideal for applications requiring low noise and power consumption, such as notebook computers and mobile phones.

Working Principle

The S-1122B40MC-L8ZTFG linear voltage regulator works like an on/off switch for regulating a current or voltage, depending on its design. Its main components are a reference voltage, an error amplifier, an output transistor, and some protection circuitry. The reference voltage is established by a resistor-capacitor (RC) network. It sets the output voltage of the regulator to a specific value. The output transistor acts as a switch, allowing the current to flow when a specific voltage is reached and blocking it when the voltage falls below a certain level. The error amplifier compares the reference voltage and the output voltage. If the voltage drops, the error amplifier sends a signal to the transistor, allowing the current to flow. Conversely, if the voltage rises, the error amplifier sends a signal to the transistor, which blocks the current flow. The protection circuitry is designed to shut off the device in case of overvoltage, undervoltage, or overcurrent.

The S-1122B40MC-L8ZTFG linear voltage regulator is a truly remarkable device that offers a robust voltage regulation solution for various applications. Its wide input voltage range, low noise, and high power efficiency makes it an ideal choice for a variety of integrated devices.