LDL1117S30R

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LDL1117S30R is a type of linear voltage regulator, which falls under the family of PMIC (power management integrated circuit) products and is mainly used with 3V to 3.3V supply inputs and output. The device offers multiple TTL-compatible logic levels and can maintain a VREG voltage within a 1.25V – 4.75V range. It combines both feature-rich power management functions, such as low-dropout regulators and very low-dropout regulators, to provide superior performance and efficiency.

This particular device has a low-dropout voltage regulator (LDO) dedicated to providing a 3A output current capability, along with a current monitor circuit, an LDO control circuit, and a configurable reset circuit. Its features include low quiescent current, about 2.5mA for a total supply voltage of 10V, and a wide operating temperature range of –25°C to +85°C.

Furthermore, the LDL1117S30R regulator provides excellent transient response, output voltage tolerance of less than 1%, and extremely low noise on a 3kHz bandwidth. Besides, it also offers excellent load and line regulation capabilities.

The working principle of the LDL1117S30R voltage regulator is based on the basic notion of regulating the supply voltage on three levels, namely input, output and reference. The input is taken from the power source and sent to the regulator, while the output is the regulated voltage that is sent to the load. Finally, the reference is a high precision voltage (typically within 1.25V to 4.75V depending on the device model) with which the output voltage voltage is compared.

In the case of the LDL1117S30R regulator, the input is typically of 3V to 3.3V , The reference voltage is held at a constant level and is compared with the output voltage, the error signal is then used to control the gate of the MOSFET which is responsible for controlling the current flow to adjust the output voltage.

As for application field of LDL1117S30R, it is wide and varied. It is typically deployed in consumer electronics, baseband and processor-based platforms, storage systems and digital cameras. It can also used in any application demanding for a wide range of supply voltage, excellent loading capacity and good performance.

In the medical field, the LDL1117S30R has been used to provide superior output current capability to medical devices and equipment. It is used in patient monitors, imaging systems and other healthcare products, in where small size and excellent reliability are highly desired.

In sum, the LDL1117S30R linear voltage regulator is the ideal choice for low-power applications where steady output voltage is essential. It features excellent load and line regulation, good transient response and very low noise, allowing for smooth and precise control of the output voltage.

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