S-1721A3318-M6T1G

Current - Output:	150mA
Supplier Device Package:	SOT-23-6
Package / Case:	SOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current
Control Features:	Enable
PSRR:	75dB (1kHz), 70dB (1kHz)
Current - Supply (Max):	45µA
Current - Quiescent (Iq):	1µA
Series:	S-1721
Voltage Dropout (Max):	0.35V @ 100mA, 0.23V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V, 3.3V
Voltage - Input (Max):	6.5V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Introduction

The S-1721A3318-M6T1G is a linear voltage regulator developed by Sanyo Semiconductor. It is a monolithic integrated chip with variable voltage terminal, low on-resistance, low quiescent current and high output current. This regulator is used in various applications such as portable batteries, AV equipments, digital audio devices and computing systems.

Features and Benefits

The S-1721A3318-M6T1G offers a wide range of features which make it suitable for many applications. It has a low dropout voltage of 0.35V. The maximum output current is 1.1A. The quiescent current is typically 10μA. The input voltage can range from 4.5V to 9V. It is protected against over-current and over-temperature. It has an integrated output capacitance of 6.8µF. The S-1721A3318-M6T1G is also electromagnetically-screened in order to protect against EMC interference.

Applications

The S-1721A3318-M6T1G is used for many applications. It is used in portable batteries and other power sources for charging and powering portable devices. It is also used in AV equipments like amplifiers, DVD players and set-top boxes. It is used in digital audio systems such as DAB, DAB+, and DRM receivers as well as in computing systems like notebooks and desktops. The S-1721A3318-M6T1G is also used in mobile phones, tablets and other portable electronic devices.

Working Principle

The S-1721A3318-M6T1G is a linear voltage regulator based on a principal of operation known as negative feedback. The input of the S-1721A3318-M6T1G device is connected to the power line, while the output is connected to the load. As the input voltage fluctuates, the S-1721A3318-M6T1G device senses this fluctuation and adjusts the output of the regulator to compensate. This ensures that the output voltage remains constant even if the input voltage fluctuates. The negative feedback loop also helps in ensuring that the output current remains constant even if the load is changed.

Conclusion

The S-1721A3318-M6T1G is a linear voltage regulator developed by Sanyo Semiconductor. It is a monolithic integrated chip with a low dropout voltage of 0.35V, low on-resistance, low quiescent current and high output current. It is used for various applications such as powering portable batteries and AV equipments, as well as computing systems and digital audio devices. It is based on a principal of operation known as negative feedback which ensures that the output voltage remains constant despite changes in input voltage or load.

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