LMS1587CS-ADJ/NOPB

Current - Output:	3A
Base Part Number:	LMS1587
Supplier Device Package:	DDPAK/TO-263-3
Package / Case:	TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	72dB (120Hz)
Current - Supply (Max):	13mA
Current - Quiescent (Iq):	7mA
Series:	--
Voltage Dropout (Max):	1.3V @ 3A
Voltage - Output (Max):	11.7V
Voltage - Output (Min/Fixed):	1.25V
Voltage - Input (Max):	13V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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The LMS1587CS-ADJ/NOPB is a type of linear voltage regulator that falls into the PMIC - Voltage Regulators - Linear category. It is a non-isolated, adjustable switching step-down power conversion regulator which features high efficiency and minimum external components. It is designed to reduce the input voltage of a main power supply that may be too high for the load devices and other components connected to it. This voltage regulator has wide operating temperature, high efficiency, low output noise and has a fast transient response.The LMS1587CS-ADJ/NOPB is widely used in a variety of industrial, Medical, Automotive, lighting and other applications. It is designed for use in systems where a cost-effective, adjustable, quiet power solution is needed. It is suitable for applications such as LED driver, LCD driver, boot-up supply, server power, heavy loading and ripple noise suppression.The linear voltage regulator has wide input voltage ranges, ranging from 5.5V to 16V, making it suitable for both AC and DC input applications. It can provide output voltages up to 12V with a maximum output of 600mA. The LMS1587CS-ADJ/NOPB features adjustable output voltage as well as pulse-width modulation or tracking frequency-based control. It is able to provide a very accurate output voltage over its entire operating temperature range. It can operate at temperatures up to 85°C without additional derating.The LMS1587CS-ADJ/NOPB can be used in dual power supply applications thanks to its dual outputs option. This voltage regulator is also intended for use in high-reliability applications; it offers open loop voltage stability, short circuit protection, output short-circuit protection, overvoltage protection and thermal shutdown protection.The working principle of the LMS1587CS-ADJ/NOPB is based on the inductor-capacitor converter topology. It combines a transformer, switch, diode and capacitor to transform a high input voltage to a regulated lower voltage. The regulator is designed to provide a constant output voltage, regardless of the load or input voltage variations.The converter is structured to operate in switching mode using an internal high frequency oscillator. When the control signal is low, the power switch turns on, allowing current to flow from the input to the inductor. As the current builds up, it stores energy in the magnetic field. When the control signal turns off, the power switch closes and the stored energy is released into the output and the capacitor. This way, the output voltage is kept constant.To sum up, the LMS1587CS-ADJ/NOPB is a linear voltage regulator designed for systems where a cost-effective, adjustable, quiet power solution is needed. It has wide input voltage and temperature range, viable for AC and DC input applications and it can provide a very accurate output voltage over its entire operating temperature range. Furthermore, the working principle of the linear voltage regulator is based on the inductor- capacitor converter topology, where a high frequency oscillator is used to control the power switch and the energy is stored in the magnetic field. Finally, the regulator features open loop voltage stability, short circuit protection, output short-circuit protection, overvoltage protection and thermal shutdown protection, making it suitable for high-reliability applications.

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