LP5996SD-1833/NOPB

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LP5996SD-1833/NOPB (Texas Instruments) is one of the voltage regulators of linear PMICs. It is highly applicable in the regulated voltage operations. Especially, in system-level designs, this linear regulator is considered an attractive choice as it features precisions and stability as well as a wide input supply voltage range.

The LP5996SD-1833/NOPB can provide a regulated output voltage up to 18V with an operating temperature range of -40°C to +125°C. In addition to its wide input voltage range of 2.7V to 30V and a high current rating of 300mA, this linear regulator also features low power consumption, a wide control range of ±20mV, and excellent direct step-up/down capability. In order to precisely adjust the output voltage, the voltage divider enable should be used. An enable pin can be used to turn the load on and off.

This linear regulator consists of an internal voltage reference, an error amplifier, a driver, and a slew-rate limited low-side pass element. It also integrates thermal overload protection with a shutdown property, allowing it to limit catastrophic failure caused by over-current and over-temperature.

In regulated voltage operations such as adjusting a supply voltage to a specified accuracy, the LP5996SD-1833/NOPB can be used for two types of operations: current-limited mode and constant-current mode. In current-limited mode, the regulator is designed to limit output current to a set maximum and the output voltage may increase or decrease depending on the current source or load conditions. In constant-current mode, the regulator combines an output voltage regulation and a constant output current, enabling the regulation of the output current up to the set value.

The LP5996SD-1833/NOPB is a low dropout (LDO) linear regulator which uses a PNP and a NPN pass transistor to provide a regulated voltage output. The voltage drop across the pass transistors is determined by the output current and is equal to the linear regulator power dissipation over the load range. The low dropout voltage allows for higher output currents in low input voltage conditions, reducing the need for an external voltage regulator.

The LP5996SD-1833/NOPB has a built-in voltage reference which is used to detect an output voltage deviation from the predefined level. The linear regulator counteracts the output voltage deviation by sending a signal to the error amplifier, which in turn amplifies the signal. The amplified signal is then sent to the driver which controls the pass transistors and output current by adjusting the transistor bias.

The LP5996SD-1833/NOPB comes with many features such as a wide input voltage supply range, low dropout voltage, low power dissipation, and excellent direct step-up/down possibility. This linear regulator is suitable for many applications which include telecommunications, personal computing and portable electronics, as well as industrial and automotive.

In conclusion, the LP5996SD-1833/NOPB voltage regulator demonstrates high precisions and stability as well as a wide range of features. This makes it an attractive choice for various application fields, particularly in system-level designs. With its wide input voltage supply range, low dropout voltage, and low power dissipation, this regulator is an effective component for ensuring an accurate, stable, and safe output voltage limitation in regulated voltage operations.

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