S-1131B20UA-N4FTFG

Current - Output:	300mA
Supplier Device Package:	SOT-89-3
Package / Case:	TO-243AA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Supply (Max):	65µA
Current - Quiescent (Iq):	1µA
Series:	S-1131
Voltage Dropout (Max):	0.6V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Introduction

PMIC stands for power management integrated circuit. This type of integrated circuit is used to deliver power to voltage-sensitive circuits and devices. The primary purpose of a PMIC is to reduce the amount of electricity needed for a device or circuit to function correctly. Voltage Regulators are a subset of PMICs and provide consistent voltage levels for a device or circuit. Voltage Regulators employ some type of feedback mechanism to detect voltage levels and adjust them accordingly. A Linear Voltage Regulator is a type of Voltage Regulator that works by regulating the voltage by linear transformation rather than a more complex switching mechanism. The S-1131B20UA-N4FTFG is a linear voltage regulator made by the semiconductor manufacturer Sumitomo Electric Industries.

Applications

The S-1131B20UA-N4FTFG Linear Voltage Regulator is a highly efficient, small-sized voltage regulator. It has a wide operating temperature range of -40°C to +85°C, making it well suited to a variety of applications, including automotive, industrial and consumer electronics such as home appliances, digital cameras and audio systems. Additionally, this Regulator is suitable in applications ranging from 12V to 60V input voltage and 1.5V to 20V output voltage.Due to its wide range of input voltage, the S-1131B20UA-N4FTFG is well suited for automotive applications; automotive engines and other systems require a wide range of input voltage. Additionally, the Regulator is capable of high-current output (up to 200 mA); this makes it an ideal choice for automotive lighting systems and power peripherals, such as air conditioning and audio amplifiers. Its ability to withstand transients make it well suited for industrial applications, such as remote control systems, communication systems and HVAC equipment. The low operating temperature of -40°C to +85°C also makes it ideal for outdoor environments. Furthermore, the low operating current of only 5 mA makes it an ideal choice for many consumer electronics devices.

Working Principle

The working principle of a linear voltage regulator is based on the basic idea of negative feedback. A voltage regulator is made up of two components: an input voltage source and an output voltage source. The input voltage source is regulated by the output voltage source. A linear regulator works by monitoring the voltage of the output voltage source and then applying a negative feedback loop to automatically adjust the incoming input voltage to match the required output voltage. This means that if the output voltage drops below the required level, the linear regulator will increase the input voltage accordingly; conversely, if the output voltage rises above the desired level, the linear regulator will reduce the input voltage accordingly.In the case of the S-1131B20UA-N4FTFG, it uses a number of components to effectively monitor and regulate the input voltage. Firstly, the Regulator contains an error amplifier circuit, which takes the monitored output voltage as an input and then compares it to an internally-generated reference voltage. Depending on the result of the comparison, the error amplifier circuit either increases or decreases the voltage being delivered to the output voltage source. Secondly, the Regulator contains an output stage circuit, which is responsible for delivering the actual output voltage. This stage is linked to the error amplifier circuit, so that it will adjust the output voltage depending on the output of the error amplifier circuit. In addition, the S-1131B20UA-N4FTFG also contains protection circuits, which help to ensure the safety of the device and prevent any kind of malfunction.

Conclusion

The S-1131B20UA-N4FTFG linear voltage regulator is a highly efficient, small-sized voltage regulator with a wide operating temperature range that makes it suitable for a wide range of applications. Its wide range of input voltage makes it well suited for automotive applications and its ability to withstand transients make it an ideal choice for industrial applications. Additionally, its low operating current makes it an ideal choice for consumer electronics devices. The Regulator works by monitoring the voltage of the output voltage source and then applying a negative feedback loop to automatically adjust the incoming input voltage to match the required output voltage, using an error amplifier circuit, an output stage circuit and protection circuits.

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