LT3029MPMSE#PBF

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The LT3029MPMSE#PBF is a member of a family of advanced low noise, low dropout Linear Regulators (LDOs) with innovative features. It is optimized to meet a wide variety of linear voltage regulators applications, ranging from electronic device protection to power distribution. The features of the device includes ultra low noise, low dropout voltage and excellent input voltage transient response which allows the designers to efficiently reduce noise, save on board space and maximize portability.

One of the main application fields for the LT3029MPMSE#PBF are voltage regulators used in portable and embedded devices. It is ideal for applications such as microcomputers, telecommunication, Digital Signal Processors (DSPs) and audio. In these applications, the LT3030PPMSE#PBF provides very low-noise and excellent input voltage transient response at power-up and power-down. Moreover, due to its small size, the LDO can be easily installed in space-constrained applications such as phones and PDAs.

The working principle of the LT3029MPMSE#PBF can be summarized in two stages. In the first stage, a difference in potential between the input voltage and the output voltage is detected by the LDOs current sensing circuit. This difference is used to calculate the voltage required to charge a capacitor which is connected across the output nodes. The capacitor is used to store the energy until the output voltage reaches the needed level.

In the second stage, the output voltage is regulated by the resistor divider network and the voltage on the capacitor is sampled by the sense circuit which is connected to the output nodes. The LDO will detect a decrease in output voltage and adjust the voltage across the output nodes as required. The closed loop operation ensures that the output voltage remains as close as possible to the desired level.

The LT3029MPMSE#PBF is an advanced low noise, low dropout Linear Regulator ideally suited for applications requiring low noise and excellent transient response. It is designed for high input voltage transient response, emphasizing high load, transient and load regulation in light load conditions. Its innovative features allow it to be easily installed in space-constrained applications and provides improved performance over conventional linear voltage regulators. The closed loop operation ensures that the output voltage is kept as close to the desired level as possible.

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