LF33ABDT-TR

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The LF33ABDT-TR is a low-drop, three-terminal, adjustable negative voltage regulator created by STMicroelectronics. This voltage regulator is specifically designed for use in various applications where high battery backup voltage is required. The LF33ABDT-TR can be used to regulate the output voltages from a wide range of sources such as linear power supply systems, battery chargers, mobile phones, notebooks and other portable applications.

The LF33ABDT-TR is capable of delivering voltage regulation with an output voltage accuracy of +/-1%. Its high-precision and low dropout voltage (Vd) of 1V allow it to meet the requirements of the most demanding battery backup systems. The LW 33ABDT-TR also features a low quiescent current (ICQ) of 30uA, low operating temperature of -40°C to 125°C and a high PCB mounting stability of 1%.

The LF33ABDT-TR works on a very simple principle: voltage is regulated by comparing it with a stable reference voltage. The reference voltage is produced by an on-chip bandgap reference source and is compared with the output feedback voltage. The feedback voltage is then adjusted to match that of the reference voltage. The result is a smooth and stable +/-1% output voltage with no load regulation.

The LF33ABDT-TR is ideal for use in a wide range of low-drop voltage regulator applications such as battery backup systems, notebook computers, mobile phones and other portable devices. Its high-precision and low dropout voltage (Vd) of 1V, low operating temperature of -40°C to 125°C and high-stability PCB mounting make it a perfect choice for such applications. It also comes with suitable protection features like output over-current and reverse current protection, reverse power protection and thermal shutdown, providing additional safety and reliability.

In conclusion, the LF33ABDT-TR is an ideal choice for applications that require high precision, low drop out and high stability output voltage. It is widely used in various battery backup systems, notebook computers, mobile phones and other portable devices due to its low dropout voltage (Vd) and wide operating temperature range. Moreover, its built-in protection features like output over-current and reverse current protection, reverse power protection and thermal shutdown provide additional safety and reliability to the applications.

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