S-1112B40MC-L6ZTFG Datasheet/PDFThe S-1112B40MC-L6ZTFG is a cost-effective and low-power low-dropout linear voltage regulator (LDO) offered by Shindengen Electric Mfg. CO Ltd. It belongs to their S-1112 series of products and is one of the smallest and most efficient LDO regulators available on the market today. This voltage regulator is suitable for regulating input voltage to 5V with a maximum current of 1A. It can be used to power small low-powered circuit boards or for high-density, ultra-small embedded devices.
Application Field
The S-1112B40MC-L6ZTFG is an excellent choice as a general-purpose low power linear voltage regulator. It provides a low dropout voltage, low quiescent current and minimal temperature coefficient, which makes this regulator ideal for powering low power applications, including: industrial measurement and control systems, consumer electronic devices, portable data acquisition systems, embedded microcontroller applications, CCTV cameras and many more. The S-1112B40MC-L6ZTFG is an ideal choice when a low output voltage, low power consumption and input voltage are important considerations.
Working Principle
The S-1112B40MC-L6ZTFG is a low power, low dropout linear voltage regulator which operates by comparing the output voltage to a reference voltage. When the output voltage reaches the reference voltage, it increases the transistor\'s gate voltage, which lowers the current passing through it to maintain the output voltage. When the output voltage drops below the reference voltage, the transistor\'s gate voltage is increased to raise the current passing through the device to maintain the output voltage. This results in a drop in voltage at the transistor\'s input whilst the output voltage is kept at a constant level, thus serving its purpose of providing a constant, regulated voltage.
Key Features
The S-1112B40MC-L6ZTFG has some key features which make it a suitable choice for low power applications. These features include:
- Low Quiescent Current: The quiescent current of the S-1112B40MC-L6ZTFG when the temperature is 25°C~125°C is 20uA, which is ideal for applications where battery life is an important consideration.
- Low Dropout Voltage: The S-1112B40MC-L6ZTFG has a dropout voltage of 150mV when the current is at 1A and the temperature range is from -40° C to 125°C. The dropout voltage can be reduced further by using an externally connected series resistor.
- Low Input Voltage: The input voltage range of the S-1112B40MC-L6ZTFG is 0.8V~6.5V, making it suitable for a variety of applications.
- Low Output Voltage: The S-1112B40MC-L6ZTFG output voltage range is 0.8V~5.0V, ideal for powering low power applications.
- High Efficiency: The S-1112B40MC-L6ZTFG is highly efficient and has a typical power efficiency of 91% with an input voltage of 3.3V and an output voltage of 1.75V.
- Temperature Compensation: The S-1112B40MC-L6ZTFG includes a temperature compensation circuit, which ensures that the output voltage stays stable over a wide temperature range.
Conclusion
The S-1112B40MC-L6YTFG is a cost-effective and low-power linear voltage regulator that offers excellent performance in a compact package. It is suitable for a broad range of applications, including low-power circuit boards and embedded devices. With its low dropout voltage, low quiescent current, low input voltage and low output voltage, the S-1112B40MC-L6ZTFG is the ideal choice for low power applications.