LTC3838EUHF#TRPBF

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The LTC3838EUHF#TRPBF is a synchronous monolithic step-down switching regulator that is used as a power supply DC/DC converter to produce a regulated voltage. It is a popular Power Management Integrated Circuit (PMIC) from the Voltage Regulators range, under the DC DC Switching Controllers category. This chip integrates 32V N-channel MOSFETs, with integrated current sensing and over-voltage protection (OVP). It has an external input voltage range of 4.5V to 38V and is ideal for applications that require up to 4.8A current.

The device is designed primarily for point-of-load (POL) requirements, which are the rising demands in today’s high performance electronics. It is suitable for a wide range of systems, including networking, storage and server, multimedia, and industrial electronics.

The LTC3838EUHF#TRPBF is a digitally-controlled, synchronous step-down DC/DC converter that operates over a wide input voltage range of 4.5V to 38V and provides a highly efficient, regulated output voltage level. Its unique design uses a proprietary, non-overlapping PWM control that eliminates the need for an external programmable clock, thereby reducing bill of material (BOM) costs.

The LTC3838EUHF#TRPBF features one buck controller, one switch current sense amplifier (CSA), and one overvoltage protection (OVP) circuit, as well as one selectable logging mode register, which allows programming of the device from a user friendly graphical user interface (GUI) or via the device’s built-in flash memory. The switch current sense amplifier has a 1-bit precise current interrupt that can be set to be activated in either one of the following two conditions: when power switch current crosses an upper threshold or when power switch current crosses a lower threshold.

The device incorporates a comprehensive suite of output voltage accuracy, line and load regulation, as well as transient performance. Additionally, an external MOSFET can be used to drive the synchronous rectifier, providing reduced internal losses.

The chip also offers beeper-in-the-box software, which provides audible feedback to the user on any device faults or important changes in behavior in order to speed up debugging. The chip also offers multiple options for personalization and fine-tuning.

Overall, the LTC3838EUHF#TRPBF is an excellent IC for POL solutions, providing high efficiency and supporting a wide input and output voltage range. It is easy to program and also offers comprehensive overvoltage protection, making it especially suitable for mission-critical applications.

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