LTC3624EMSE#TRPBF

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The LTC3624EMSE#TRPBF is a synchronous buck regulator from Linear Technology that combines an internal high-side and a low-sideresistor-capacitor (RC) MOSFETs and a current mode controller together with the necessary compensation components. It requires very few external components, which makes it suitable for a wide range of applications including distributed power systems, instrumentation and communication systems. It is categorized as a PMIC (Power Management IC) regulator ideal for voltage conversions such as DC/DC switching regulators, battery chargers and point-of-load (POL) regulators.

The LTC3624EMSE#TRPBF offers high efficiency and high power density. It is capable of providing up to 2A output current while operating with a wide input voltage range of 4V to 16V. It can also provide adjustable and fixed output voltages between 0.8V and 16V. The low output noise of the regulator also aids in providing low-EMI operation. To achieve the highest efficiency and lowest noise possible, the regulator features a patented Burst Mode operation.

The LTC3624EMSE#TRPBF also features an integrated loop compensation, allowing for faster setup with fewer external components. The output voltage is set by the resistor connection between the VR and VFB pins on the device. It also includes an adjustable soft-start feature, which helps in efficiently ramping up the output voltage and controlling inrush current.

The LTC3624EMSE#TRPBF is designed to operate over the −40 °C to 85 °C temperature range. The internal over-temperature protection and wide switching range of up to 1MHz makes it well-suited for high-density, low-profile designs. It also offers over-current and short-circuit protection. The device is capable of operating in an ambient temperature of up to 125 °C with derating.

The working principle of the LTC3624EMSE#TRPBF is based on a voltage-mode current-mode control scheme. The internal PWM controller ensures current control by comparing the current sense voltage with a precision reference voltage. The voltage-mode switching of the MOSFETs is also ensured by the PWM controller, which compares the voltage at the FB pin with its internal reference. The output voltage is regulated by modulating the duty cycle of the MOSFETs.

The LTC3624EMSE#TRPBF is ideal for a number of DC/DC applications, including distributed power systems, instrumentation systems and communication systems. Its small size and wide input voltage range make it an excellent choice for space-constrained applications, such as portable device and board-level applications. The device is also perfect for applications where high efficiency and low-noise operation are desired. In addition, it is suitable for applications with critical budgets, since it requires very few external components.

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