S-817B15AY-B-G

Voltage Dropout (Max):	0.99V @ 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:	20mA
Series:	S-817
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.5V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Bulk

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The S-817B15AY-B-G is an advanced voltage regulator that is part of the range of low dropout linear voltage regulators from Alpha & Omega Semiconductor (AOS). It is designed to provide an accurate and reliable output voltage for a wide range of applications, from mobile and consumer electronics to power management solutions.The S-817B15AY-B-G is a 3-terminal low dropout regulator that is built using a combination of MOSFET, Schottky diode and resistor components. It features an on-board negative current detection circuit, which provides an added level of protection and reduces the occurrence of false alarms. It also features a built-in overvoltage protection circuit and undervoltage lockout, making it suitable for applications in harsh environmental conditions.The regulator is designed to provide a stable and accurate output voltage of up to 5.5V, with an output current of up to 350mA. The S-817B15AY-B-G can be configured in a standard or adjustable form and is capable of operating over the wide input voltage range of 4.5V to 30V. Its operating temperature range is from -40°C to +125°C, making it suitable for use in harsh conditions.The S-817B15AY-B-G is suitable for use in applications such as microprocessors, cellular phones, digital cameras and power management systems. The on-board protection circuit makes it ideal for use in automotive applications where transients and overvoltage conditions may occur, and its tight output voltage accuracy makes it suitable for powering sensitive integrated circuits.The regulator is available in a standard 8-pin TSOP package and is priced competitively.The working principle of the S-817B15AY-B-G is based on a feedback control loop. It consists of a control circuit, a power stage, an input voltage and an output voltage. The control circuit receives a reference voltage, which is compared with the output voltage and adjusts the power stage accordingly. The power stage then converts the input voltage to the required output voltage as per the reference voltage.The input voltage is sensed and compared to a reference voltage inside the control loop. Any discrepancy between them is corrected by adjusting the power stage, allowing the output voltage to remain stable despite changes in the input voltage. The output voltage is further regulated by the Schottky diodes, which act as a current limiter and prevent any further increase in the output voltage.The S-817B15AY-B-G is a cost-effective and reliable voltage regulator solution that is suitable for a variety of applications. Its advanced protection circuitry and tight voltage accuracy make it an ideal choice for applications that demand high reliability.

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