LT3048IDC

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Linear-switching voltage regulators are a type of power management integrated circuits (PMIC), which indicate the use of linear and switching regulation in one integrated circuit to create a more efficient and cost-effective solution than using separate linear and switching regulators. LT3048IDC is a low noise and low dropout linear-switching voltage regulator with an input voltage range of 3V to 5.5V with an output voltage range of 1.3V to 20V. It provides efficient and accurate power conversion with up to 95% efficiency and low quiescent current. It is ideal for battery-powered and USB-powered applications and is capable of providing up to 1A of continuous current.

The LT3048IDC also features voltage monitoring, current monitoring and programmable soft start, enabling precise control of power supply sequencing and power-up sequences required for system circuits such as LEDs, motor drivers and more. The device also has excellent thermal management capabilities, providing maximum flexibility in thermal design, making it ideal for space-constrained industrial, automotive and medical applications.

The LT3048IDC voltage regulator is composed of four main blocks - an input voltage regulator, an output voltage regulator, a linear regulation block, and a variable frequency switching power stage. The voltage regulator design starts with an input voltage regulator which provides a stable voltage to the voltage regulator. This input voltage is then converted to an analog voltage, which is compared to a reference voltage in the output voltage regulator to provide the desired output voltage. Two voltage regulators, the linear and switching regulators, are then used to generate the desired output current or voltage. The linear regulator is used for steady state current or voltage regulation, while the switching regulator is used to limit the switching frequency of the voltage regulator to reduce noise, reduce ripple, and provide greater output current capabilities.

The LT3048IDC features a 200mV current limit protection circuit, which allows for precise current protection and reduces power consumption. The device also features a low output voltage ripple, making it suitable for power sensitive applications such as medical and automotive. The device further offers an on-board high accuracy bandgap reference, allowing the user to accurately set the output voltage without the need for external components.

The LT3048IDC is suitable for a wide array of applications, such as automotive, industrial, medical devices and more. It can be used for powering mobile devices, powering USB devices, powering portable medical devices and more. The LT3048IDC also features a low output voltage ripple, making it suitable for power-sensitive applications such as medical, where a clean and stable power source is essential. Additionally, the LT3048IDC has excellent thermal management capabilities, providing maximum flexibility in thermal design, making it ideal for space-constrained industrial, automotive and medical applications.

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