S-1721A1233-I6T1U Integrated Circuits (ICs)

Current - Output:	150mA
Supplier Device Package:	SNT-6A
Package / Case:	6-SMD, Flat Lead Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current
Control Features:	Enable
PSRR:	80dB (1kHz), 70dB (1kHz)
Current - Supply (Max):	45µA
Current - Quiescent (Iq):	1µA
Series:	S-1721
Voltage Dropout (Max):	0.58V @ 100mA, 0.23V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.2V, 3.3V
Voltage - Input (Max):	6.5V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Cut Tape (CT)

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Introduction

PMIC (Power Management IC) voltage regulators are a form of analog integrated circuit that provides a regulated output voltage. Linear voltage regulators are the simplest and most common type of regulator. They are used in a wide range of applications, from automotive and industrial to consumer electronics. The S-1721A1233-I6T1U is a specific type of linear voltage regulator that is designed for a broad range of automation applications, including industrial automation and robotics. This article will discuss the application field of S-1721A1233-I6T1U and its working principle in detail.

Application Field and Working Principle

The S-1721A1233-I6T1U is a low dropout linear voltage regulator that is designed to provide a stable output voltage (2.8V) while being able to handle a wide range of input voltages, from 6V to 36V. It is specifically designed for applications where power line noise and interference can occur, such as industrial automation and robotics. The working principle of the S-1721A1233-I6T1U is based on the classical voltage regulator topology. It consists of an internal voltage reference, a transconductance amplifier, a pass transistor, and an error amplifier. The voltage reference sets the output voltage of the regulator. The transconductance amplifier amplifies the difference between the output voltage and the reference voltage. The pass transistor adjusts the output current according to the amplified output voltage difference. Lastly, the error amplifier reads the output voltage, compares it to the reference voltage and sends an error signal back to the transconductance amplifier in order to keep the output voltage in line with the reference voltage.

Physical Characteristics and Benefits

The S-1721A1233-I6T1U is a 7-pin TO-220 package device with a maximum impedance of 12mΩ. It has a minimum quiescent current of 2.5mA and a maximum power dissipation of 10W. It is designed to provide up to 1A of output current and is able to operate at a temperature range of -30°C to +125°C. The S-1721A1233-I6T1U has several benefits compared to other types of linear regulators. It has low quiescent current and low dropout voltage, which means that it is able to provide a reliable and stable output voltage with minimum power consumption. In addition, it is capable of withstanding harsh environments and can provide reliable performance in temperatures up to 125°C.

Conclusion

The S-1721A1233-I6T1U is a low dropout linear voltage regulator that is specifically designed for a wide range of automation applications, including industrial automation and robotics. Its key features include low power consumption, low dropout voltage, and wide temperature range. It is a 7-pin TO-220 package device and able to provide up to 1A of output current. The working principle of the S-1721A1233-I6T1U is based on the classical voltage regulator topology and consists of an internal voltage reference, a transconductance amplifier, a pass transistor, and an error amplifier.

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