S-817B49AY-Z2-U

Voltage Dropout (Max):	0.27V @ 10mA
Supplier Device Package:	TO-92-3
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	--
Control Features:	--
PSRR:	--
Current - Quiescent (Iq):	2.5µA
Current - Output:	65mA
Series:	S-817
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4.9V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Box (TB)

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Introduction

The S-817B49AY-Z2-U is a voltage regulator module manufactured by Sanken Electric Co. Ltd. It is part of the SankenLINE series of linear switch-mode voltage regulators. This voltage regulator is used widely in various automated machinery, telecommunications, and consumer electronics products.

Features and Benefits

The S-817B49AY-Z2-U voltage regulator has a wide input voltage range of 6V-36V and a wide output voltage range of 1.25V-36V. This wide range makes it suitable for a wide variety of applications, such as robotics and industrial automation equipment, information and communication equipment, and consumer electronics such as notebook computers, televisions and more.The S-817B49AY-Z2-U has a wide temperature range of -40℃ to +85℃ and operates in a humidity range of 5% to 95%. This makes it suitable for use in harsh environments. Additionally, the S-817B49AY-Z2-U features short circuit protection, as well as current limiting protection, to ensure the optimal functioning of the voltage regulator module in the event of an overload. The S-817B49AY-Z2-U has a high precision of ±1.0% and a ripple of 20mVp-p. This ensures that the voltage regulated is incredibly accurate and can power sensitive electronic devices without disruption or risk of damage. The S-817B49AY-Z2-U is also reversible, meaning that it can operate in either direction, allowing for greater flexibility and simpler system integration. The S-817B49AY-Z2-U voltage regulator also features a wide variety of other useful features, including: RoHS compliance, a long life of 8,000 hours of operation at full load and with no derating, and a compact size of just 45mm x 28mm x 13.2mm.

Application Fields

The S-817B49AY-Z2-U voltage regulator is suitable for a wide range of applications, including robotics and industrial automation equipment, information and communication equipment, and consumer electronics such as notebook computers, televisions and more. Its wide input voltage and current, low ripple, and excellent precision make it particularly suitable for these applications.The S-817B49AY-Z2-U is also increasingly popular in the automotive industry, where its compact size and wide temperature resistance make it ideal for automotive electronics, such as control systems and navigation systems. The high precision and anti-surge protection of the S-817B49AY-Z2-U make it suitable for use in surveillance systems, such as security cameras, and computer servers, where constant and reliable power supply is essential.

Working Principle

The S-817B49AY-Z2-U voltage regulator module works on the principle of switch-mode regulation. This regulation, also known as pulse width modulation, works by using a series of transistor switches to regulate the power supply at a constant voltage output. The input voltage is first rectified and then smoothed before being sent to the power switch, which is then sent to the output side. The switch is regulated by a feedback loop which monitors the output voltage. When the output voltage exceeds a certain level, the output voltage is adjusted accordingly by regulating the on/off switching of the power switches. The S-817B49AY-Z2-U employs a current-mode control for greater reliability, simplicity, and improved output accuracy. Additionally, it also employs a constant-on-time control, which provides a more balanced output response over a wide range input voltages, resulting in a smoother and more stable output voltage. The S-817B49AY-Z2-U also features short circuit protection, as well as current limiting protection. The short circuit protection will shut down the output to prevent any further damage to the system in the event of a short circuit. The current limiting protection will prevent any overloading of the output, providing greater reliability and safety.

Conclusion

The S-817B49AY-Z2-U voltage regulator module is a highly reliable switch-mode voltage regulator suitable for a wide range of commercial and consumer applications. Its wide input and output voltage, wide temperature and humidity ranges, long life and anti-surge protections make it incredibly reliable in harsh environments. Additionally, its current-mode control and constant-on-time control allow for greater accuracy and smoother and more balanced output voltages. Combined, these features make the S-817B49AY-Z2-U a versatile and reliable voltage regulator module suitable for a wide range of automation, consumer electronics and automotive applications.

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