NCP134AMX100TCG

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The NCP134AMX100TCG is a linear voltage regulator designed for low-noise and high efficiency operations that stands out as an important component on the PMIC (Power Management Integrated Circuit) market. This device is ideal for applications that require a DC/DC voltage regulator with very low noise and high efficiency. Such use cases include automotive, consumer and communications systems.

The NCP134AMX100TCG boasts of a design optimized for low noise and high efficiency. The improved design helps achieve a dramatically lower quiescent current than similar linear regulators while delivering a high efficiency. It has an enable pin to save power and a power-good pin to alert the system of its status. This device is capable of supporting input voltage up to 24V, with an output voltage range of 0.8V to 20V. It also features a wide operating temperature range of -20°C to 85°C.

The NCP134AMX100TCG utilizes an error amplifier, a voltage reference and a series control element (MOSFET) to deliver the desired output voltage. These components are essential in controlling the output voltage and ensuring it remains constant. The error amplifier compares the output voltage with the voltage reference to determine how much voltage the MOSFET should deliver to the output. When the output voltage is low, the MOSFET will deliver more voltage and when the output voltage is too high, the MOSFET will deliver less voltage.

The error amplifier achieves a high accuracy by using a trimmed bandgap reference as the voltage reference input. This reference is guaranteed to maintain a voltage accuracy across temperature of +/- 0.25% which translates to an excellent performance. Additionally, the amplifier is designed to increase the a small signal bandwidth which helps reduce output voltage variation due to loading changes.

The NCP134AMX100TCG also features a robust MOSFET to protect the load in case of overload or short circuit events. It has a rugged control loop which helps in case of large glitches and provides flexibility to the user by allowing them to adjust the control loop parameters, such as current limit and soft start time.

Overall, the NCP134AMX100TCG offers an excellent solution for applications that require a low-noise and high efficiency DC/DC voltage regulator. Its low-power consumption and wide operating temperature range makes it the perfect choice for any application, from automotive to consumer and communications systems.

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