NJM78LR05BD

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	18V
Voltage - Output (Min/Fixed):	5V
Voltage - Output (Max):	--
Voltage Dropout (Max):	--
Current - Output:	100mA
Current - Quiescent (Iq):	3.4mA
PSRR:	79dB (120Hz)
Control Features:	Reset
Protection Features:	Over Temperature, Short Circuit
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-DIP

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NJM78LR05BD Application Field and Working Principle

NJM78LR05BD is a voltage regulator from the NJM78LR series manufactured by New Japan Radio Co., Ltd. It is classified as a low dropout (LDO) type regulator, specifically a linear voltage regulator. The NJM78LR05BD is ideal for use in a variety of different applications that require ultra-low dropout voltages. It is designed to maintain very stable output voltage levels, making it suitable for battery powered circuits and other tightly regulated voltage applications. Some of the applications where the NJM78LR05BD lends itself to include router, portable data terminal, remote controls, and automotive control systems, as well as audio and amplifier controls. The NJM78LR05BD is a low-current, low-dropout voltage regulator which operates at a very low input/output voltage differential of 0.3V and is suitable for use with very low voltage power sources such as lithium cells or batteries. It is also capable of providing a stable output voltage of 5V with a maximum standing current of 100mA, with additional features such as thermal shutdown protection, reverse battery protection, reverse cell protection, and overcurrent protection. The basic operating principle of the NJM78LR05BD is relatively simple. It features an amplifier which is powered by the input voltage, resulting in an amplified output voltage at the regulator\'s output (Vout). The difference between the input and the output of the regulator (Vdropout) is usually expressed as a dropout voltage. The NJM78LR05BD regulator operates in three main modes; normal, sleep, and reverse. During the normal operating mode, the regulator monitors the input voltage and keeps the output voltage at its predefined level, regardless of any variations in the input voltage. In sleep mode, the regulator is shut down and there is no interaction between the input and output voltages. Finally, in reverse mode, the regulator switches the input and output pins, allowing the output voltage to be reversed and supplied to another device. In conclusion, the NJM78LR05BD is an excellent low dropout voltage regulator for a variety of applications. Its low dropout voltage and features such as current protection make it ideal for low power circuits such as portable devices. Its low differential input/output voltage also makes it suitable for use with very low voltage power sources like lithium cells or batteries. Its versatility and stable output voltage values make the NJM78LR05BD an attractive regulator for many applications.

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