S-1721A1812-I6T1U

Series:	S-1721
Packaging:	Tape & Reel (TR)
Part Status:	Active
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	2
Voltage - Input (Max):	6.5V
Voltage - Output (Min/Fixed):	1.2V, 1.8V
Voltage - Output (Max):	--
Voltage Dropout (Max):	0.58V @ 100mA, 0.35V @ 100mA
Current - Output:	150mA
Current - Quiescent (Iq):	1µA
Current - Supply (Max):	45µA
PSRR:	80dB (1kHz), 75dB (1kHz)
Control Features:	Enable
Protection Features:	Over Current
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	6-SMD, Flat Leads
Supplier Device Package:	SNT-6A

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Introduction
The S-1721A1812-I6T1U is a low dropout (LDO) linear voltage regulator typically used in power sensitive and high current applications. This voltage regulator is designed to provide precisely regulated output voltage from 0.1V to 5.5V with a load current of up to 3A. The regulator features a low dropout voltage of 130mV @ 0.5A, wide input range and low quiescent current draw, which makes it ideal for applications that require precise, reliable and efficient voltage regulation. The S-1721A1812-I6T1U can also be used as a temperature compensated voltage source, as it has a low operational temperature range.Application Field and Working Principle
The S-1721A1812-I6T1U is a linear voltage regulator typically used in high power and current sensitive applications, such as battery powered systems, isochronous timing and low EMI.The S-1721A1812-I6T1U is ideally suited for applications that require precise voltage regulation from 0.1V to 5.5V and a low quiescent current draw. The device can be used in a variety of applications such as voltage regulation, over current protection, and temperature compensation. The regulator offers a wide input range and a low dropout voltage of 130mV @ 0.5A, which makes it ideal for applications that require a precise, reliable and efficient voltage regulation.The working principle of the regulator is based on a reference voltage source and a series of transistors. The reference voltage is applied to the base of the transistors, and the output voltage is regulated by adjusting the collector current. The output voltage is kept above or below the reference voltage by the negative or positive feedback. When the output voltage deviates from the reference voltage, the regulator output switches between the two states, increasing or decreasing the collector current and thus regulating the output voltage.The S-1721A1812-I6T1U is a low dropout linear voltage regulator and is most suitable for applications that require a precise, reliable and efficient voltage regulation. It is designed to provide regulated output voltage from 0.1V to 5.5V with a load current of up to 3A. This device has a wide input range, low quiescent current draw and low dropout voltage, making it ideal for applications that require a precise, reliable and efficient voltage regulation. It is also suitable for applications that require temperature compensation as it has a low operational temperature range.

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