NCP500SN28T1G

Current - Output:	150mA
Base Part Number:	NCP500
Supplier Device Package:	5-TSOP
Package / Case:	SOT-23-5 Thin, TSOT-23-5
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	62dB (1kHz)
Current - Supply (Max):	300µA
Current - Quiescent (Iq):	1µA
Series:	--
Voltage Dropout (Max):	0.25V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.8V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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NCP500SN28T1G is a voltage regulator product from ON Semiconductor, part of the PMIC, Voltage Regulators and Linear series. This part offers a range of features and targeted applications, allowing it to be used in a variety of applications from consumer electronics to industrial systems. NCP500SN28T1G is a single package (TO-92) low dropout voltage regulator which offers a wide operating voltage range, adjustable current limit and fast transient response. The device is designed to draw only a negligible amount of quiescent current, making it well suited for portable applications. It has an adjustable output, making it a popular choice in applications that require flexibility. At the heart of the NCP500SN28T1G lies an innovative thermal compensation technique that enables the device to adjust its output voltage depending on the surrounding temperature. This helps maintain a stable output voltage in high temperature applications. The device also features soft start and thermal protection functions, allowing the device to be protected from dangerous overloads and shorts. To understand the NCP500SN28T1G’s working principle, we must first look at its circuit structure. The NCP500SN28T1G has a three-terminal layout which includes a non-inverting input node, an inverting input node, and an output node. To adjust the output voltage, a resistive divider is used between the non-inverting and inverting input terminals. The output terminal is connected to the junction between the resistors, where the desired output voltage is set. When the feedback voltage at the inverting input terminal is lower than the non-inverting input voltage, a current flows through the base – emitter of the internal control transistor (usually a BJT). This increases the current flowing through the entire circuit, increasing the output voltage. On the other hand, if the feedback voltage is higher than the non-inverting input voltage, the current through the circuit decreases and the output voltage also drops. This way, the device is able to self-regulate and maintain a steady output voltage. The NCP500SN28T1G is ideal for applications that require low dropout operation, such as portable electronics, telecommunications, computer peripherals, and networking products. The device is also well suited for automotive applications, thanks to its fast transient response and thermal compensation technique. Additionally, it can be used in DSL modems, adjustable power supply applications and battery-powered equipment. In conclusion, the NCP500SN28T1G offers a wide operating voltage range, adjustable current limit and fast transient response which make it a robust solution for a wide range of applications. Its adjustable output, low quiescent current, self-regulating circuit and thermal compensation technique make it well suited for use in home, automotive and industrial applications.