LM336Z-2.5/LFT1

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	LM336
Supplier Device Package:	TO-92-3
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 70°C (TA)
Current - Cathode:	400µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	--
Tolerance:	±4%
Current - Output:	10mA
Voltage - Output (Min/Fixed):	2.49V
Output Type:	Fixed
Reference Type:	Shunt
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction of LM336Z-2.5/LFT1 Voltage Reference

The LM336Z-2.5/LFT1 is a micropower, low-noise voltage reference from Texas Instruments. It is part of the precision voltage references category of the company’s Power Management ICs (PMIC) family. It is designed for a wide variety of power management applications for automotive, industrial and consumer markets.

Application Fields and Main Features

The LM336Z-2.5/LFT1 voltage reference is specifically designed for high-temperature, low-current applications. With its 10mV dropout voltage, it can generate output voltages as low as 0.78V. Its temperature coefficient is a mere -0.092ppm/°C, making it suitable for a variety of low-noise, low-power applications. It is capable of driving up to 10mA of current and it has an output voltage specify to within ±0.3%. The application fields of LM336Z-2.5/LFT1 diversify its use for automotive, industrial, and consumer applications. Remote sensor supplies, front end transimpedance amplifier circuits and other low-current applications in automotive ECUs are common applications of the LM336Z-2.5/LFT1 voltage reference. It is also employed as a reference source in automotive ECUs, analog control systems and power management ICs, and in monitoring systems, battery powered equipment and telecom equipment.

Working Principle

The LM336Z-2.5/LFT1 voltage reference is built around a series-pass regulator circuit. A bypass capacitor is often used to improve the transient response of the reference. The reference circuit is designed for stable operation over a wide temperature range.The LM336Z-2.5/LFT1 operates over a wide temperature range from -55°C to +125°C. The reference voltage is set by an external resistor such that the voltage output is equal to the resistor ratio multiplied by the reference voltage, usually 2.5V.The LM336Z-2.5/LFT1 is designed for low-noise operation with its very low output impedance and high-frequency response. The power supply rejection ratio (PSRR) of the reference is typically 110dB and its total output noise voltage is 350uVrms, which is significant in most low-noise applications.

Conclusion

The LM336Z-2.5/LFT1 voltage reference is a versatile and reliable device for low-power, low-noise applications. It is designed to operate over a wide temperature range, allowing it to be used in a variety of automotive, industrial, and consumer applications. With its low dropout voltage, high PSRR and low noise output, the LM336Z-2.5/LFT1 is an ideal choice for these applications where low-noise and high performance are essential.

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