LP3966ESX-1.8/NOPB

Current - Output:	3A
Base Part Number:	LP3966
Supplier Device Package:	DDPAK/TO-263-5
Package / Case:	TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
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):	1.2V @ 3A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
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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Introduction to LP3966ESX-1.8/NOPB

LP3966ESX-1.8/NOPB is a member of Texas Instruments\' family of small package, low-dropout (LDO) linear voltage regulators that offer low supply current and improved line and load regulation compared to the standard 78xx family of linear regulators. The device is particularly suited for applications that require a small footprint and low quiescent current requirements such as battery-operated systems, portable computers, and media players. This device is an excellent solution for powering loads that require very stable supply voltages, and can also be used to power high-current load such as FPGAs, ASICs, and other integrated circuits.

Features of LP3966ESX-1.8/NOPB

The LP3966ESX-1.8/NOPB linear voltage regulator is designed to provide a wide range of output voltages from 1.2 V to 3.8V with a maximum output current of 1.8A. The device has very low dropout voltage, allowing it to operate efficiently with minimal power loss. It is powered by a single input voltage, and offers both short circuit and thermal protection. Additional features include thermal shutdown, undervoltage lock-out (UVLO), and no-load quiescent current of 10µA. The device includes a shutdown pin and other control pins, offering support for full shutdown mode, pulse-width modulation (PWM) control, power-good, and simple fractional regulators.

LP3966ESX-1.8/NOPB Application Field and Working Principle

The LP3966ESX-1.8/NOPB linear voltage regulator is suitable for a wide range of applications, such as portable gadgets, personal electronics and cellular phones where low-noise and high efficiency is a must. The device can be used in automotive, medical, and industrial applications, as well as in security, monitoring and measurement systems. The LP3966ESX-1.8/NOPB linear voltage regulator works on the principle of linear regulation, where the output voltage is actively controlled by an internal control loop. The error amplifier in the circuit compares the output voltage to a reference voltage, and adjusts the voltage divider network to produce the correct output voltage. The reference voltage remains constant over the operating range, allowing for the exact regulation of the output voltage. The comparator circuit then produces an output current that either turns on or off the switching transistor, depending on the input voltage, reference voltage, and the output load. This ensures that the output voltage stays constant and regulated regardless of changes in input voltage or output load.

Benefits of LP3966ESX-1.8/NOPB

The LP3966ESX-1.8/NOPB linear voltage regulator offers many benefits. The device is highly efficient, and its low quiescent current and low dropout voltage make it ideal for low-power applications. The device\'s small footprint and its ability to operate in a wide range of ambient temperatures also make it a great choice for portable devices. It is relatively simple to use and configure, and can be used to produce a wide range of output voltages with excellent line and load regulation. The device also provides short-circuit and thermal protection, offering additional safety and reliability for your application.

Conclusion

The LP3966ESX-1.8/NOPB linear voltage regulator offers a wide range of features and benefits in a very small package. The device is designed for low-power applications with low quiescent current and low dropout voltage, making it well suited for portable devices, automotive, and industrial applications. Its wide input voltage range, excellent line and load regulation, and additional features such as thermal shutdown and overvoltage protection make it a great choice for powering a wide variety of loads. The device\'s ease of use, compact size, and great performance make it an ideal solution for powering high-current loads.

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