LT3693EDD#PBF

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LT3693EDD#PBF is a highly efficient, small, step-up DC/DC converter that can deliver up to 500 mA of output current and can operate over a wide input voltage range of 2.5V to 18V. It is designed to provide a regulated output voltage of 5V and incorporates a current limit feature that prevents overloads and short circuit conditions. The device is available in both 2–47 (inverting) and 2–75 (non–inverting) packages.

PMIC - Voltage Regulators - DC DC Switching Regulators

The LT3693EDD#PBF is a reconfigurable PWM switching regulator, which is used to provide high efficiency conversion of a varying DC input voltage to a fixed DC output voltage. It is suitable for power management applications, such as portable electronics and battery-powered devices where output banks can be powered from a single input source. The high-frequency PWM topology provides a high efficiency level and low output noise, while allowing standard input voltages from 2.5V to 18V.

The LT3693EDD#PBF switching regulator also incorporates over-voltage and under-voltage protection for the input and output supplies as well as short circuit protection for overloads and short circuits. The device can also support a wide range of output currents, up to 500mA, making it suitable for numerous applications including portable electronics, notebook computers, personal digital assistants, motion control systems and other battery-powered devices. It is available in the form of both standard and reverse-connected packages.

The LT3693EDD#PBF switching regulator implements a buck-boost topology, which efficiently converts a varying input voltage into a fixed output voltage of 5V. The PWM control circuit enables the switching regulator to operate in Pulse Width Modulation (PWM) mode. The modulation is done via the changing duty cycle of the control switch and the external feedback control loop. The main advantages of PWM control are better efficiency, improved line and load transient response, and better regulation compared to other DC/DC conversion techniques.

The device itself consists of three main components: an input voltage regulator, an output voltage regulator and a high-frequency gate driver for the switching transistor. In addition, a charge pump circuit is also included for creating the high voltage drive needed to operate the transistors. The high frequency switching of the LT3693EDD#PBF allows for small external components, with fast transient time and low-noise operation. The device is also optimized for low EMI (electromagnetic interference) operation.

The LT3693EDD#PBF switching regulator is an efficient, cost-effective power management solution for high-power applications. It is well-suited for applications where a precisely regulated 5V output voltage is needed, such as powering optical drives, cellular telephones, notebook computers, and battery-powered devices. It is also suitable for motion control applications and other power-sensitive systems where a tightly regulated voltage is required. With its efficient design and integrated protection features, the LT3693EDD#PBF is the perfect choice for powering any high power system.

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