LTC3858EUH-2#TRPBF

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The LTC3858EUH-2#TRPBF is a single-chip synchronous step-down DC-DC switching controller that delivers adjustable current-mode control, making it an excellent solution for non-isolated point-of-load applications. With its on-chip MOSFET drivers and on/off control, it is ideal for powering FPGAs, ASICs, or other digital logic. This device is a member of Linear Technology\'s family of DC-DC switching regulators and is specifically designed to enable the efficient use of non-isolated applications.

Features

• Fixed frequency or up to 2 MHz oscillator
• Internal 0.5 A/1.0 A MOSFET gate drivers
• On/off control for system power management
• Minimum 1 A switch current
• Integrated short-circuit protection
• Over-temperature protection

Applications

• Non-isolated point-of-load applications
• High current, low voltage conversions
• FPGA, ASIC, or digital logic power supply
• USB, DDR and other low voltage systems

Working Principle

The LTC3858EUH-2#TRPBF DC-DC switching controller is composed of three main parts - the oscillator, controller, and gate driver. The oscillator sets the switching frequency of the device and can be set up to any frequency between 250kHz and 2 MHz. The controller regulates the load current and the output voltage, and uses feedback and voltage clamping to provide accurate output voltage control. Finally, the gate driver ensures that the output stages are rapidly switched on and off, allowing the device to efficiently power FPGAs, ASICs, and other digital logic.

The LTC3858EUH-2#TRPBF is able to operate in both continuous and pulsed mode, allowing it to meet the demands of a wide range of applications. Additionally, integrated protection features such as over-temperature and current limit protection enable it to be used in high reliability and safety-critical applications. With its high current and low voltage applications, the LTC3858EUH-2#TRPBF is a great choice for powering FPGAs, ASICs, and other digital logic.

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