LM4050BIM3-2.0/NOPB

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The LM4050BIM3-2.0/NOPB is a voltage reference device from Texas Instruments. It is classified under Programmable Mixed-signal integrated circuits, specifically under the Power Management Integrated Circuit (PMIC) - Voltage Reference. This device is designed to provide the highest accuracy and specificity during voltage regulation and is a cost-effective alternative to discrete circuit solutions.

The LM4050BIM3-2.0/NOPB includes a precision bandgap voltage reference circuit with an output voltage of 2.0V regulated. It delivers an accuracy of ±0.2%, low temperature drift performance of 0.6% maximum over a -40°C to +125°C temperature range, low noise of 30µVpp maximum, and low output impedance of 0.1Ω maximum. It makes use of N-Channel MOSFET pass transistors in a 2-terminal configuration to achieve low device power consumption of 0.8mW maximum.

The output of the LM4050BIM3-2.0/NOPB is protected from short-circuit conditions and is independent of the power supply voltage. Such characteristics maintain the device’s precision even during sudden short-circuit fault conditions. Its comparator-like voltage output is unaffected by the bypass capacitor between the reference and GND pins.

The LM4050BIM3-2.0/NOPB is suitable for applications that require low noise, low power consumption, low thermal sensitivity, low operating current, and maximum precision. These include temperature transducers, handhelds and portables electronics, test equipment, medical devices, LED lighting, and communications systems.

The LM4050BIM3-2.0/NOPB, without consuming additional stand-by circuits and active power, can withstand up to 6Ω load and drive up to 20mA. It includes an under voltage lockout feature which will shut down the output if the supply voltage sinks below 4.2V. The device has been tested with JEDEC/JESD78 Level-2 CSP, CSP, and JESD78 Level-3 CDK, GGA test methods.

The working principle of the LM4050BIM3-2.0/NOPB involves the use of a bandgap circuit which produces a fixed reference voltage. A bandgap circuit consists of two subcircuits. One is designed to generate a fixed reference voltage while the other works to adjust the offset and temperature drift of that voltage. When the circuit multiplies the reference voltage, it provides a voltage which can be used to accurately regulate and monitor output. The LM4050BIM3-2.0/NOPB combines these two components into a single integrated circuit to offer superior performance and cost savings compared to discrete solutions.

The LM4050BIM3-2.0/NOPB provides a complete solution for voltage reference applications that require low noise, low power consumption, low thermal sensitivity, low operating current, and maximum accuracy. Its Pb-Free package with RoHS compliance allows it to be used in lead-free applications and ensures that it is compliant with all international standards.

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