LM285MX-1.2/NOPB Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Reference Type:	Shunt
Output Type:	Fixed
Voltage - Output (Min/Fixed):	1.235V
Current - Output:	20mA
Tolerance:	±1%
Temperature Coefficient:	150ppm/°C
Noise - 0.1Hz to 10Hz:	--
Noise - 10Hz to 10kHz:	60µVrms
Voltage - Input:	--
Current - Supply:	--
Current - Cathode:	10µA
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	LM285

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What is the LM285MX-1.2/NOPB?The LM285MX-1.2/NOPB is a voltage reference device that belongs to the family of Power Management Integrated Circuits (PMIC) for power supply designs, specifically known as a voltage reference. The device is specifically optimized for low-voltage applications and ensures low-voltage and high-accuracy. It operates from 1.7V to 5.5V, with a regulated 1.2V output, a typical temperature coefficient of 10ppm/°C, and a maximum total output voltage variation of ±0.5%. What are the Application Fields for the LM285MX-1.2/NOPB?The LM285MX-1.2/NOPB has a wide range of application fields, including in portable and battery-powered systems, communications and networking, instrumentation, defense, automotive, and many other digital and analog designs. It is ideal for applications such as Low Drop-Out Linear Regulators (LDOs), voltage watches, voltage supervisors, shunt references, as well as accurate temperature measurements in thermocouple and thermistor systems. What is the Working Principle of the LM285MX-1.2/NOPB?The LM285MX-1.2/NOPB is constructed with two layers of metal masks and epitaxial layers to provide an accurate reference voltage and excellent stability over temperature and time. It operates by using a bandgap voltage reference which results in a much more linear and accurate output than traditional zener diodes. The device’s output is accurately regulated through the use of an internal series resistor network, which maintains temperature compensation across the full temperature range. This series resistance also increases the gain of the voltage reference and allows for an extremely wide input supply voltage range. The LM285MX-1.2/NOPB also features a high-impedance internal voltage divider for applications in which the reference output is higher than the input supply voltage. The device also includes other features such as a selectable logic pin for high and low power modes, low power consumption, low quiescent current, a short-circuit protection, and a shutdown pin for applications with power-saving modes. ConclusionThe LM285MX-1.2/NOPB voltage reference from Power Management Integrated Circuits is a versatile and reliable device that offers excellent stability and accuracy for a wide range of applications across various industries. Its design combines a bandgap voltage reference with an internal series resistor network to produce a regulated 1.2V output, a low temperature coefficient of 10ppm/°C, and a maximum total output voltage variation of ±0.5%. The device also features selectable logic pins, low power consumption, low quiescent current, a short-circuit protection, and a shutdown pin. With its wide range of features, the LM285MX-1.2/NOPB is an ideal choice for power supply designs.

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