LP2951CSDX-3.0

Current - Output:	100mA
Base Part Number:	LP2951
Supplier Device Package:	8-WSON (4x4)
Package / Case:	8-WDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	14mA
Current - Quiescent (Iq):	120µA
Series:	--
Voltage Dropout (Max):	0.6V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V
Voltage - Input (Max):	30V
Number of Regulators:	1
Output Type:	Adjustable (Fixed)
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LP2951CSDX-3.0 Application Field and Working Principle

LP2951CSDX-3.0 is a linear, 1A Low-Dropout (LDO) voltage regulator from Texas Instruments. It enables up to 1A of continuous output current with very low drop-out voltage, making it an ideal voltage regulator for many applications.This voltage regulator is widely used in a variety of embedded systems, such as industrial control systems, embedded microprocessor (MPU) control systems, and automotive applications. It is also well-suited for voltage regulation in devices with low power and space constraints, such as portable electronics. In addition, it can also be used in digital power supplies and equipment power supplies, making it a versatile voltage regulator.The LP2951CSDX-3.0 is designed to operate over a wide operating temperature range of -40°C to +125°C. It is available in a 9-lead, thermally enhanced, surface mount PowerPAD™ package.To understand the application field and working principle of this voltage regulator, let’s first understand its basic features and specifications.

Features and Specifications

The LP2951CSDX-3.0 is a low-dropout (LDO) linear voltage regulator that delivers up to 1A of continuous output current. It features low quiescent current and low dropout voltage for excellent power efficiency. It also has a very low output noise voltage, making it a reliable and efficient voltage regulator. It features a wide operating temperature range of -40°C to +125°C, making it suitable for a variety of applications. It is available in a 9-lead thermally enhanced, surface mount PowerPAD™ package, making it easy to use in space-constrained designs. It also has an enable pin, which can be used to enable or disable the output voltage.

Working Principle

The LP2951CSDX-3.0 is a linear, 1A Low-Dropout (LDO) voltage regulator. It works by regulating the voltage output to a fixed level within a certain range. The voltage regulator consists of an input voltage, a series element, and an output voltage. The input voltage is connected to the series element, which is an NPN transistor. This NPN transistor acts as a current regulator and limits the maximum current flowing through the circuit, thus regulating the output voltage. This current regulator works by comparing the actual output voltage to the reference voltage, and then adjusting the current through the voltage regulator to maintain the desired output voltage. The output voltage is regulated by a three-terminal, adjustable low-dropout linear regulator that uses an external reference voltage to set-up the output voltage. The output voltage is set by a single external resistor between the adjust pin and the ground pin. The power dissipation of the LP2951CSDX-3.0 is limited by the on-chip thermal shutdown protection circuit. This thermal shutdown circuit monitors the chip temperature and cuts off the power to the voltage regulator when the chip\'s junction temperature exceeds the maximum safe operating temperature.

Benefits and Use Cases

The LP2951CSDX-3.0 is an ideal voltage regulator for a variety of applications. It is designed to be a very efficient, reliable and low-noise voltage regulator. It can be used in digital power supplies, equipment power supplies, low power embedded systems, industrial control systems and automotive applications. The LP2951CSDX-3.0 is a very efficient voltage regulator, thanks to its low-dropout voltage and low quiescent current. It is also very reliable, thanks to its thermal shutdown protection circuit and its wide operating temperature range of -40°C to +125°C. Additionally, its very low output noise voltage makes it an excellent choice for applications that require clean power. Overall, the LP2951CSDX-3.0 is an excellent voltage regulator for a variety of applications. It is well-suited for applications that require high efficiency, reliability and low-noise voltage regulation.

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