LM385BXMX-2.5/NOPB

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	LM385
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Current - Cathode:	20µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	120µVrms
Series:	--
Temperature Coefficient:	30ppm/°C
Tolerance:	±1.5%
Current - Output:	20mA
Voltage - Output (Min/Fixed):	2.5V
Output Type:	Fixed
Reference Type:	Shunt
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

LM385BXMX-2.5/NOPB is a voltage reference device designed and manufactured by National Semiconductor, particularly under the application field of PMIC - Voltage Reference. This device works in a quite simple but efficient way, and its mainly purpose is to maintain the stability and accuracy of voltage outputs. This article will therefore provide a detailed introduction of the application field and working principle of LM385BXMX-2.5/NOPB.

Application Field of LM385BXMX-2.5/NOPB

As mentioned before, LM385BXMX-2.5/NOPB is primarily designed for the application field of PMIC - Voltage Reference. This device operates in a wide range of temperature, which is from 0°C to +70°C (mofset) and from -40°C to +85°C (temperature range). It is used mainly for the voltage (V) correction in the CPU and other electronic circuits with the rated voltage of 5V or other rating voltage. In addition, the LM385BXMX-2.5/NOPB can be used as a reference voltage with additional amplifying circuits in the application fields of:1. Power Management IC2. System Power Solutions3. Digital Processor IC4. Programmable Logic Device IC5. Mobile Communications IC6. Linear Regulators

Working Principle of LM385BXMX-2.5/NOPB

The working mechanism of LM385BXMX-2.5/NOPB is actually not very complicated. Basically, this device utilizes steady resistance changes to maintain the voltage output accuracy in the CPU or any other electronic devices. It works by measuring the incoming voltage value and amplifying it accordingly, and then compares the adjusted voltage value to its reference voltage, which is held constant. Whenever the current voltage value is lower than the reference voltage value, LM385BXMX-2.5/NOPB will then adjust its resistance in order to increase the voltage output. Similarly, if the current voltage value is higher than the reference voltage value, LM385BXMX-2.5/NOPB will then decrease its resistance to output the correct voltage. Furthermore, LM385BXMX-2.5/NOPB is also designed with a precision bandgap circuit, which ensures the high accuracy of the voltage reference value. This adjustable reference voltage of LM385BXMX-2.5/NOPB can be set externally with a single resistor, making it very easy to configure.

Conclusion

To conclude, LM385BXMX-2.5/NOPB is a very useful voltage reference device designed and manufactured by National Semiconductor. It is mainly used for the application field of PMIC - Voltage Reference, and its main purpose is to maintain the accuracy and stability of voltage outputs. Its working mechanism is quite simple and can easily be configured with a single resistor, and the precision bandgap circuit guarantees the accuracy of the voltage reference value.

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