LMS1587CS-1.5

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:	60 ~ 72 dB (120Hz)
Current - Supply (Max):	13mA
Current - Quiescent (Iq):	7mA
Series:	--
Voltage Dropout (Max):	1.3V @ 3A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.5V
Voltage - Input (Max):	13V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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LMS1587CS-1.5 Application Field and Working Principle

Linear voltage regulators are a type of voltage regulators that control the output voltage of a power supply system by means of the linear control of a driver transistor. This type of voltage regulator provides a regulated output voltage, despite changes in the input voltage. The LMS1587CS-1.5 is one of the most popular linear voltage regulators within the PMIC – Voltage Regulators – Linear category. This product has several specialized applications and is typically employed in regulated power supply circuits, embedded system power management, over-voltage protection (OVP) and automated test equipment (ATE). In the regulated power supply circuits, this device helps to provide constant output voltage despite changes in the incoming supply voltage. This device can also protect devices under test in ATE from excessive voltage. The LMS1587CS-1.5 is a low-dropout linear voltage regulator that uses an N-channel depletion-mode MOSFET as its active device. Its operating voltage range is between 2.7 and 7.0 V and it has an output current of up to 1.5 A. The device features over-current protection, over-temperature protection, low power on/off control, and precise output voltage control. To get a better understanding of the working principle of this device it is important to understand the overall functionality. The device consists of a control circuit, an N-channel MOSFET, and a minimum number of external components. The external components include resistors, capacitors, a Schottky diode, and a voltage divider. When the input voltage of the device is applied, a signal is sent to the control circuit which then starts to operate the N-channel MOSFET. The output voltage of the device is regulated by the MOSFET which keeps the voltage across its drain and source within a certain range. The MOSFET also controls the current flow to the output pin which in turn controls the output voltage of the device. The Schottky diode helps to prevent any voltage spikes that might occur due to load transients. The resistors and the voltage divider work together to adjust the threshold voltage of the device so that it can accurately detect and regulate the output voltage.In addition to its linear voltage regulation, the LMS1587CS-1.5 also features a low power on/off control pin which can be used to control the device’s power-off state. The device also features a 0.8 V power-up delay in order to provide stable voltage after power is applied. It also features over-current and over-temperature protection to ensure the device’s safety in case of any malfunctions.The LMS1587CS-1.5 is a linear voltage regulator that provides reliable output voltage regulation in power supply systems regardless of changes in the incoming supply voltage. Its highly proficient N-channel MOSFET gives it the ability to accurately detect and regulate the output voltage. The device also features several protective features such as over-current and over-temperature protection as well as low power-on/off control. This makes it the ideal device for any application that requires a reliable and protected output voltage.

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