LM385BPWR-1-2

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PMIC - Voltage References refer to integrated circuits that are used as reference sources for providing a stable output voltage from an input of fluctuating voltage. The LM385BPWR-1-2 is one type of PMIC - Voltage Reference which is used for providing voltage stability, amplification, and temperature compensation across multiple applications.

The LM385BPWR-1-2 is a voltage reference from Texas Instruments that provides stable reference values from an unregulated input voltage range of 2V to 18V with a maximum variation of 0.4 volts. This reference voltage is independent of the input voltage, temperature, and time. The output voltage is also adjustable using an external resistor divider which can be used to trim the output within 1%.

This device is ideal for applications such as precision instrumentation, RF amplifiers, data acquisition systems and battery-powered systems. It is designed to maintain a stable voltage over line, load and temperature conditions. This device also allows high current drive capabilities with a maximum current value of 2A.

The LM385BPWR-1-2 is a three terminal device that consists of a control terminal, an output terminal and an input terminal. The input is connected to the supply voltage and acts as the reference point for the reference voltage. The output is connected to the load and provides the reference voltage with a voltage gain of 6V/V. The control terminal is connected to the feedback pin and determines the output voltage of the device.

The internal circuitry of the device consists of two bipolar transistors, a temperature sensor, resistors, and capacitors. This device works on the concept of temperature-dependent negative feedback which ensures that the output voltage remains constant over temperature and time. The temperature sensor senses the changes in temperature and adjusts the output voltage accordingly.

The LM385BPWR-1-2 has an extended operational temperature range of -55°C to 150°C and has an output noise of 15 µVrms. This device is available in SOT-23, SOT-89 and TO-220 package and is RoHS compliant. It also has an input voltage range of 2V to 18V which makes it suitable for use in a variety of applications.

The LM385BPWR-1-2 is used for providing a stable output voltage over changing input voltage and temperature conditions for applications such as RF amplifiers, precision instrumentation, data acquisition systems and battery-powered systems. It works on the concept of a temperature-dependent negative feedback loop which ensures that the output voltage remains stable over a wide temperature range and time. This device is RoHS compliant and has an extended operational temperature range of -55°C to 150°C.

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