UA78L05ACLPR Integrated Circuits (ICs)

Voltage Dropout (Max):	1.7V @ 40mA
Base Part Number:	UA78L05A
Supplier Device Package:	TO-92-3
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity, Short Circuit
Control Features:	--
PSRR:	49dB (120Hz)
Current - Output:	100mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	20V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The UA78L05ACLPR is a low-cost voltage regulator which offers high performance with low noise and low dropout voltage. This linear regulator has wide range of input voltages and can be used in a variety of applications. It is designed to deliver fixed output voltages and is capable of driving a maximum load current of up to 150 mA.

Application Field

The UA78L05ACLPR is a versatile and flexible voltage regulator, capable of providing a wide variety of output voltages. It is suitable for powering various logic, voltage converters, and other low-power circuits. This regulator can be used in many applications including low-voltage battery supplies, instrumentation, low-voltage signal generators, and even in automotive applications.

Working Principle

The UA78L05ACLPR is a linear regulator, meaning it converts input power into a constant regulated output voltage. It works by taking the input voltage and then regulating the output voltage with a series of resistors and transistors. The output voltage is determined by the internal voltage reference. The input voltage has to be higher than the output voltage for the regulator to function properly. If the input voltage is lower than the output voltage, the regulator will not work because the transistors will be unable to draw enough current from the input to keep the output voltage constant. Additionally, when the input voltage is significantly higher than the output voltage, the regulator may overheat and shut down.

Advantages

The UA78L05ACLPR offers a number of advantages. Firstly, it has a wide input voltage range, from 2.5V to 30V, so it can be used in many different applications. Secondly, its maximum output current is higher than other regulators, meaning it can drive more current. Thirdly, the regulator works efficiently, with a quiescent current of only 10 mA and an efficiency rating of up to 93%. Finally, the regulator has a very low dropout voltage of 0.25V, meaning it can operate with low input voltage margins.

Conclusion

The UA78L05ACLPR voltage regulator is a versatile, low-cost, and efficient solution for many different applications. It is capable of providing high performance with low noise and low dropout voltage. Its wide range of input voltages and its ability to drive up to 150mA makes it perfect for a variety of different projects. The UA78L05ACLPR is well-suited for applications such as low-voltage battery supplies, instrumentation, low-voltage signal generators, and automotive applications.

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