LP3961EMP-2.5/NOPB

Current - Output:	800mA
Base Part Number:	LP3961
Supplier Device Package:	SOT-223-5
Package / Case:	TO-261-5, TO-261AB
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):	15mA
Current - Quiescent (Iq):	9mA
Series:	--
Voltage Dropout (Max):	0.35V @ 800mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.5V
Voltage - Input (Max):	7V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionLinear voltage regulators are electronic components that maintain a fixed output voltage from an input voltage source. The LP3961EMP-2.5/NOPB linear voltage regulator from Texas Instruments is a low-dropout voltage regulator that provides excellent circuit performance and power efficiency. It is ideal for applications that require low-dropout and very high power efficiency.FeaturesThe LP3961EMP-2.5/NOPB features a wide operating temperature range, which provides it with a wide temperature range of −40°C to +125°C. It offers an input voltage range of 1.8V to 5.5V, with a maximum output voltage of 2.5V. It is capable of providing 600mA of current, with an efficiency of 93%. In addition, it features a 2.25V to 4.75V adjustable output voltage range, with low 0.6V dropout voltage, low quiescent current, and a fast transient response for a wide range of output loads. It also has a wide range of adjustable output voltage, white noise reduction circuitry, over-temperature protection and thermal shutdown protection. Furthermore, it offers protection against short-circuits, overloads, and over-temperature.Application Field and Working PrincipleThe LP3961EMP-2.5/NOPB is a versatile power system management IC designed for a wide range of applications, including portable electronics, battery operated systems, laptops, and other low power applications. As with most linear voltage regulators, the LP3961EMP-2.5/NOPB works by comparing the output voltage to its reference voltage, ensuring that the voltage remains at a constant level. This is achieved by using an internal error amplifier, which compares the two voltages and adjusts the output voltage to match the reference level.The LP3961EMP-2.5/NOPB is designed to be used with variable input voltage sources, such as batteries or alternating currents. It offers robust protection features, such as over-temperature, over-current, and overtemperature protection, as well as low-noise design, which eliminates the need for external filters and noise suppression elements.ConclusionThe LP3961EMP-2.5/NOPB linear voltage regulator from Texas Instruments is a low-dropout voltage regulator that provides excellent circuit performance and power efficiency. It is ideal for applications that require low-dropout and very high power efficiency. With a wide temperature range, adjustable output voltage range, and robust protection features, this voltage regulator is a highly versatile and reliable choice for any low powered system.

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