NJM78LR05DD#

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NJM78LR05DD# is part of a family of Low Dropout (“LDO”) voltage regulators. The device is a linear voltage regulator that features high current capability, low quiescent current, adjustable output voltage, and a low dropout voltage. This makes it suitable for use in a wide range of applications, including audio systems, process control, instrumentation, power management, and other applications that require precise low-voltage regulation.

The NJM78LR05DD# has an adjustable output voltage range from 1.2 V to 40 V, with a maximum output current of 2 A and a minimum dropout voltage of 0.5 V. It operates from an input voltage range from 4.5 V to 40 V and is designed to work with a maximum input ripple voltage of up to 25 mV peak-to-peak. It also has thermal shutdown protection, current limit protection, and output overvoltage protection.

The NJM78LR05DD# is configured as a series voltage regulator in which the output voltage is determined by the internal feedback resistor. This resistor is connected between the regulator’s output and the REF pin and works in conjunction with an external feedback resistor to set the output voltage. The voltage is then regulated by controlling the internal pass transistor which works in response to the voltage difference between the output and the REF pin.

The regulator also features a reverse-current protection and overcurrent limit circuit that prevents excessive current draw from the device. This circuit senses the current flow in the device and appropriately limits the output current when it exceeds the set level. The device also features better line regulation compared to other LDOs.

The NJM78LR05DD# has several advantages over other LDOs. First, it has a low quiescent current, making it suitable for battery-powered devices. As it requires only a small current for operation, it can reduce power consumption and prolong battery life. Second, its wide output voltage range makes it suitable for a wide range of applications. Third, its low dropout voltage makes it suitable for low-noise, high-current power supplies.

The NJM78LR05DD# is a versatile device suitable for many applications. It can be used as a power supply, a voltage-divider, a voltage-controlled switch, or a current-regulating device. Its adjustable output also makes it suitable for use in many systems where a precise voltage level is required. In addition, its low quiescent current and low dropout voltage makes it suitable for use in battery-powered devices.

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