S-817B36AY-B2-U

Voltage Dropout (Max):	0.35V @ 10mA
Supplier Device Package:	TO-92-3
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	--
Control Features:	--
PSRR:	--
Current - Quiescent (Iq):	2.5µA
Current - Output:	50mA
Series:	S-817
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.6V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Bulk

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IntroductionThe S-817B36AY-B2-U is a voltage regulator which utilizes the principle of linear regulation, to provide a regulated output voltage of 5.0V from an input voltage ranging from 4.5V to 28V. The design is optimized to provide high power and high accuracy, to ensure stable electric current regardless of changes in the load current or input voltage. Featuring low output noise and low power consumption, this device is designed for a wide range of applications. ApplicationsThe S-817B36AY-B2-U offers the perfect solution for a wide range of applications, including audio, industrial and automotive applications. This voltage regulator is used for providing a reliable and stable output for audio amplifiers and line drivers, mobile devices with wireless access points, smart meters, TV set-top boxes and automotive systems. FeaturesThe S-817B36AY-B2-U has a number of different features and characteristics, which make it an ideal choice for a variety of applications. These include:• Low output noise: The device has ultra low output noise of 0.5μVrms. • High efficiency: With a maximum efficiency of 96.5%, this voltage regulator can reduce electrical losses and make it suitable for a variety of industrial and automotive applications. • Low power consumption: Its quiescent current of just 10μA makes it suitable for power sensitive applications. • High Accuracy: With a typical line regulation accuracy of 0.04%, this device ensures a regulated output voltage from a wide range of input voltages. • Temperature sensing capability: The device has a built in temperature sensing capability, which helps to improve the stability of the output voltage. • Low operating temperature: The device can be used in temperatures ranging from -55°C to 150°C. • Output over-voltage protection: This feature prevents any output voltages higher than 5.0V, in case of a fault in the system.Working PrincipleThe principle upon which the S-817B36AY-B2-U is based on is linear regulation, which ensures steady and reliable output voltage. This is achieved by regulating the input voltage by integrating a transistor in series with the output. When the input voltage rises, the transistor reduces the current flow to the output, thus reducing the output voltage. Similarly, when the input voltage falls, the transistor increases the current flow, thus increasing the output voltage. The device also uses a temperature sensing element which automatically adjusts the output voltage as the temperature varies, for stable and reliable operation. The temperature sensing element maintains the output voltage at a constant level, even when the input voltage varies. In order to accurately regulate the output voltage, the voltage regulator utilizes a precision resistive divider network. This network is used to measure the output voltage and feed it to a volt-second oscillator. This oscillator then uses the reference output to regulate the input voltage and maintain the output voltage at a constant level. ConclusionThe S-817B36AY-B2-U voltage regulator is a device which combines the principle of linear regulation with a temperature sensing element, to provide a reliable and stable output voltage. Its high efficiency, low noise and low power consumption make it ideal for a variety of audio, industrial and automotive applications. Its built-in over-voltage protection prevents any voltage spikes which could damage the system. The precision resistive divider network and the volt-second oscillator ensure a regulated output voltage.

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