S-812C40AY-Z2-U

Current - Output:	65mA
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 - Supply (Max):	2.1µA
Current - Quiescent (Iq):	500nA
Series:	S-812C
Voltage Dropout (Max):	0.3V @ 10mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Box (TB)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

S-812C40AY-Z2-U is a voltage regulator from an S-812 series which is manufactured by Shindengen. It is a linear voltage regulator which provides power stabilization with an switching frequency of up to 400kHz. The distinct version of the voltage regulator is equipped with an adjustable load current limiting feature and an adjustable soft start current rising time feature. The adjustable load current limiting feature allows the device to precisely provide maximum output current and soft start current rising time feature enable the current to rise gracefully.

Application Field

The S-812C40AY-Z2-U offers high electrical performance and a standard fixed output voltage of 4 volts. It is often used in applications like mobile phones, digital camcorders and other electronics which require power stabilization and hybrid voltage regulators with low EMI.Moreover, it is suitable for battery-operated equipment as a power stabilization due to its high efficiency and power saving feature. It can provide constant voltage or current for great applications like servers, storage devices, IP phone base station, network systems, industrial equipment and so on.

Working Principle

The S-812C40AY-Z2-U uses Constant Voltage Regulation (CVR) and Constant Current Regulation (CCR) to stabilize the output voltage and maintain a constant current supply.In CVR mode, a single power supply is connected to the device. The input voltage is monitored and compared to a reference voltage generated by an on-board band-gap which sets the output voltage of the device. If the input voltage drops lower than the reference, the on-board comparator triggers and drives the P-channel MOSFET which is used to limit current. As a result, the output voltage remains constant.In CCR mode, the S-812C40AY-Z2-U operates similarly to CVR. However, the primary difference is that the output current is monitored and maintained at a constant level. This is done by monitoring the voltage drop the device experiences when it is operating in CCR mode. If the voltage drop exceeds a predefined level, the MOSFET is triggered and the output current is limited accordingly.

Conclusion

This article provides an overview of the S-812C40AY-Z2-U voltage regulator and its application field and working principle. The device is a linear voltage regulator which provides power stabilization with an adjustable load current limiting feature and an adjustable soft start current rising time feature. It is most suitable for battery-operated equipment due to its high efficiency and power saving feature. The device uses Constant Voltage Regulation (CVR) and Constant Current Regulation (CCR) to stabilize the output voltage and maintain a constant current supply.

The specific data is subject to PDF, and the above content is for reference