LM385PSRG4-1-2

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC (Power Management Integrated Circuit) is an important type of integrated circuit used in various electronic systems. Voltage references are essential components of power management integrated circuits (PMICs) and are used for voltage regulation and output voltage control. The LM385PSRG4-1-2 is a type of voltage reference that is typically used for applications involving power supply supervision and regulation.

The LM385PSRG4-1-2 is an adjustable, low-voltage reference voltage device with improved accuracy and stability over temperature. It typically operates from a single supply (1.8V–6.0V) or dual supply (±4.5V–±6.0V). It offers an adjustable voltage range of 0.2V–4.2V, with a typical output current of 1.2 mA and an absolute maximum output current of 3 mA. It also features an improved temperature coefficient of 300 ppm/°C.

The LM385PSRG4-1-2 can be used in a variety of applications including portables, data communications, process control, power management and analog to digital converter (ADC) monitoring. It is widely used in converters, voltage supervisors, voltage monitors, current limiter, charge pumps and linear or switching regulators.

The main principle of the LM385PSRG4-1-2 is to use a bandgap voltage reference circuit to create an accurate voltage reference. The circuit is composed of three distinctive elements: a reference diode, a resistor network and a current source. The bandgap reference circuit is designed to provide its own reference voltage, which is then buffered by an operational amplifier. The resulting voltage is then further stabilized by using an open loop voltage follower with an adjustable reference voltage that can be dialed as needed. This provides an adjustable and stable reference voltage which can then be used to accurately control the output of the regulator.

The LM385PSRG4-1-2 is a very popular and reliable device for a variety of power management applications. It offers a high degree of accuracy and stability over temperature, making it suitable for use in a wide range of environments. Its adjustable voltage range and current limiting capability make it well-suited for both switched and linear regulators. The combination of its adjustable output voltage, current limiting capability and improved temperature coefficient make it an ideal choice for power supply supervision and control applications.

The specific data is subject to PDF, and the above content is for reference