LP3965EMP-ADJ

Current - Output:	1.5A
Base Part Number:	LP3965
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:	60dB ~ 40dB (120Hz)
Current - Supply (Max):	15mA
Current - Quiescent (Iq):	9mA
Series:	--
Voltage Dropout (Max):	0.55V @ 1.5A
Voltage - Output (Max):	5.1V
Voltage - Output (Min/Fixed):	1.216V
Voltage - Input (Max):	7V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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• Introduction

Linear voltage regulators are electronic components used to convert input voltages into the required output voltage, providing protection from voltage fluctuations. They are widely used in modern electronic devices such as PCs and laptops, mobile phones and other electronic gadgets. The LP3965EMP-ADJ is a linear voltage regulator with a wide input voltage range and adjustable output. It is a high-efficiency, low-noise regulator with low dropout voltage.

• Application Field

The LP3965EMP-ADJ is used in various applications including SoCs, portable devices and embedded systems. It is designed for automotive and industrial applications due to its wide input voltage range and its adjustable output up to 5.2V. It is widely used in multimedia and mobile devices, automated equipment and other compact devices that require adjustable output voltage. Besides automotive and industry applications, the LP3965EMP-ADJ can be used in USB power supply, intelligent lighting, home appliances, home automation, Smart energy, and digital signage.

• Working Principle

The LP3965EMP-ADJ is a low drop-out, linear voltage regulator with a wide input voltage range and adjustable output voltage up to 5.2 V. It utilizes a P-channel MOSFET for the main switching element. The integrated circuit includes a bias and a low drop-out sensing circuitry, providing an accurate and efficient power supply for the system and ensuring a stable output voltage. The LP3965EMP-ADJ has a built-in error amplifier that senses the actual output voltage and compares it to the reference voltage.The output voltage is then adjusted by the integrated error amplifier, based on the difference between the reference voltage and the actual output voltage. The output voltage is also regulated by output current limiting, overtemperature protection and overvoltage protection.The device also includes a start-up voltage for the voltage regulator, a soft-start circuit for reducing inrush current and current limiting for the load current. The regulator is also capable of driving heavy loads ranging from 10 mA to 250 mA and still maintaining a stable output voltage.

• Conclusion

The LP3965EMP-ADJ is a linear voltage regulator with a wide input voltage range and adjustable output up to 5.2V. It is designed for automotive and industrial applications, as well as multimedia, mobile devices and other compact devices. The LP3965EMP-ADJ utilizes a P-channel MOSFET for the main switching element and contains a bias and sensing circuitry, providing an accurate and efficient power supply for the system. It also has a built-in error amplifier that senses the actual output voltage, a start-up voltage, a soft-start circuit, current limiting, and overvoltage and overtemperature protection. The LP3965EMP-ADJ is a great choice for reliable and efficient power regulation in a wide range of automotive and industrial applications.

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