S-817B52AY-Z2-U

Voltage Dropout (Max):	0.25V @ 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:	75mA
Series:	S-817
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5.2V
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-817B52AY-Z2-U is a linear voltage regulator from STMicroelectronics that offers adjustable output power from 5V to 28V. This part is part of the STMicroelectronic\'s S-817B family of voltage regulators. It is intended to be used in medium and high power applications.

Application Field

The S-817B52AY-Z2-U is suitable for use in a range of applications requiring high voltage regulation and an adjustable output power. Examples of suitable applications include Industrial, Automotive and various other applications requiring high voltage regulation. This part also has a wide operating voltage range, making it ideal for high power applications.

Features

Some of the features of the S-817B52AY-Z2-U include:- Adjustable output power from 5V to 28V. - Wide operating temperature range from -40°C to +150°C.- Low quiescent current. - Low dropout voltage.- Short circuit and over-current protection- Thermal shutdown protection- High accuracy voltage regulation- Output voltage is adjustable from 5V to 28V- Output current is up to 3.2A- Operating temperature range from -40°C to +150°C- Package options: 3-pin TO-220AB, DIP-8, DIP-14, DIP-20 and SOT-223.

Working Principle

The S-817B52AY-Z2-U operates on a linear topology and uses an external PNP transistor to regulate the output voltage. The output voltage is regulated by a voltage divider connected to the output of the part. The voltage divider is connected to an internal reference voltage and this reference voltage is compared to the output voltage. If the output voltage differs from the reference voltage, the PNP transistor will adjust the output voltage by controlling the current through the voltage divider and ensuring the output is regulated to the desired level.

Conclusion

The S-817B52AY-Z2-U is a linear voltage regulator from STMicroelectronics that offers adjustable output power from 5V to 28V. It is intended to be used in medium and high power applications and has a wide operating temperature range, low quiescent current, low dropout voltage, short circuit and over-current protection, thermal shutdown protection, and high accuracy voltage regulation. The working principle of the S-817B52AY-Z2-U is based on a linear topology with an external PNP transistor to regulate the output voltage. Package options include 3-pin TO-220AB, DIP-8, DIP-14, DIP-20, and SOT-223.

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