LM285D-2-5

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	LM285
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	20µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	120µVrms
Series:	--
Temperature Coefficient:	20ppm/°C Typical
Tolerance:	±1.5%
Current - Output:	20mA
Voltage - Output (Min/Fixed):	2.5V
Output Type:	Fixed
Reference Type:	Shunt
Part Status:	Active
Packaging:	Tube

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LM285D-2-5 Application Field and Working Principle

Introduction

The LM285D-2-5 is a voltage reference integrated circuit (IC) that belongs to the PMIC family of voltage references. It is a very low dropout (LDO) voltage reference IC which is used to develop precision voltage references in the range of 2.5-3.3V, making it suitable for wide range applications. The device is available in the SOT-23 and TO-92 packages and is suitable for high speed fast settling applications.

Overview of the LM285D-2-5

The LM285D-2-5 is a low dropout (LDO) voltage reference IC able to create precision voltage references in the range of 2.5-3.3V. With its high speed fast settling characteristics, the device is very suitable for a wide range of applications, including PC motherboard system design, clock distribution, discretes, and consumer end products. The device is offered in the SOT-23 and TO-92 packages and supports a typical operating temperature range of 0-50°C.

Applications

The LM285D-2-5 can be used in applications such as: - PC motherboards: The IC can be used as a reference for a wide variety of motherboard designs, including PLL, polarity protection, temperature control, etc.- Clock Distribution: It can be used to establish precision clock references in consumer electronics, PC systems, etc. - Discretes: It is suitable for various discretes, power MOSFETs, and power transistors in a wide range of consumer end products.- Consumer End Products: The IC can be used as a voltage reference to power portable consumer devices such as cellphones, PDAs, digital cameras, media players, etc.

Advantages

The LM285D-2-5 provides several key advantages. It is a low dropout (LDO) voltage reference which produces a reliable, accurate and constant voltage reference throughout the entire operating temperature range. Additionally, the device has a fast settling capability which enables a quick, accurate start-up and fast settling times of less than 500μs. Lastly, the device is very robust and can support an operating temperature range of 0-50°C.

Working Principle

The LM285D-2-5 works according to the following principles. The power supply is connected at VCC and ground is connected at GND. The voltage reference is made from the comparison of VCC with a reference terminal, and output is controlled by changing current being supplied to the reference terminal. As the reference current changes, the output voltage changes such that VOUT = VREF. The LM285D-2-5 utilizes CMOS technology and is designed with a low noise and high accuracy output stage, allowing for a very accurate and reliable reference voltage.

Conclusion

The LM285D-2-5 is a highly versatile low dropout (LDO) voltage reference IC that can be used in a wide range of applications, including PC motherboard system design, clock distribution, discretes, and consumer end products. It is suitable for high speed fast settling applications and offers excellent accuracy, low noise, and high performance. The IC is offered in the SOT-23 and TO-92 packages and can operate over a wide temperature range of 0-50°C. With its efficient design and high precision, the LM285D-2-5 is a great choice for use in various electronics applications.

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