S-1155B39-U5T1U

Current - Output:	500mA
Supplier Device Package:	SOT-89-5
Package / Case:	SOT-89-5/6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Overcurrent, Thermal Shutdown
Control Features:	Enable
PSRR:	60dB (1kHz)
Current - Supply (Max):	90µA
Current - Quiescent (Iq):	1µA
Series:	S-1155
Voltage Dropout (Max):	0.1V @ 200mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.9V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The S-1155B39-U5T1U is a Linear Voltage Regulator (LVR) designed for applications in general purpose power supply, and can be used to regulate the output voltage of dc sources. This LVR will turn on and off, and regulates the output voltage to provide a stable power supply that can be used for various electrical and electronic systems. This application field and working principle will be discussed in further detail in this article.

Power System Overview

A power system typically consists of a power source, a load, and an intermediate stage of regulation. The power source is an electrical source that provides energy in order to power a load. The load is the electrical device which the energy is destined for; it is the part of the circuit which consumes power. The intermediate stage of regulation involves components that are used to control and adjust the voltage provided by the power source, as well as to protect the load from excess voltage or current.The intermediate stage of regulation typically comprises of several components that are interconnected to form a power supply. The S-1155B39-U5T1U is an example of such a component, and is used to regulate the output voltage of a power source so that it is suitable for the load.

Application Field and Working Principle

The S-1155B39-U5T1U is mainly used as a power supply controller in general purpose power supply applications. It can also be used in other high current or low voltage applications such as motor control, energy measurement and power conversion. The S-1155B39-U5T1U operates using a linear voltage regulator principle. This LVR is set to a predefined output voltage and when the voltage of the power source exceeds the pre-set voltage, the S-1155B39-U5T1U will turn off and will begin regulating the input current. It will then regulate the output voltage by adjusting the amount of current it allows to flow through it from the power source to the load.In order for the LVR to work efficiently, there needs to be a minimum amount of power available for the power source. This is called the reference voltage which is typically around 3.3V for the S-1155B39-U5T1U. The maximum output voltage for the S-1155B39-U5T1U is 79V, and it is typically set to a maximum of 5A.

Package

The S-1155B39-U5T1U is available in several packages including a through-hole and surface mount versions. The through-hole packages require the use of an adapter board, while the surface mount package can be soldered directly onto the circuit board. The through-hole packages are typically more reliable than the surface mount packages since they have gold-plated contact points and solder-friendly surfaces.

Advantages

The S-1155B39-U5T1U has a number of advantages over other LVRs. First, it is made with high-quality components, making it reliable and durable. It also has a wide range of reference voltage, output voltage and maximum current, making it suitable for a variety of applications.The S-1155B39-U5T1U is also extremely efficient, meaning that it can provide more power with less heat dissipation. It also has a low dropout voltage, which is beneficial when used in applications where the available input voltage is low.

Conclusion

In conclusion, the S-1155B39-U5T1U is a Linear Voltage Regulator designed for use in general purpose power supply applications. It operates using the linear voltage regulator principle and is available in several packages. This LVR is reliable and efficient, and has a wide range of reference voltage and maximum current, making it suitable for several applications.

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