The LTC3823EUH#PBF is a high-performance, fixed-frequency step-down switching regulator controller from Linear Technology, designed to drive an all N-channel power MOSFET stage. This advanced controller is packed with features to ensure efficient power conversion and reliable operation in a variety of applications, including distributed power systems, industrial controls, and telecommunications equipment.

Key Features

• Wide Input Voltage Range: The device is capable of operating from an input voltage range of 4V to 60V, making it versatile for use in a wide array of power systems.
• Powerful Performance: It has a powerful 1.1Ω onboard gate driver that enhances the performance of the external MOSFETs.
• Adjustable Operating Frequency: The LTC3823EUH#PBF allows the user to set the operating frequency anywhere from 100kHz to 600kHz, which can be synchronized to an external clock.
• Current Mode Operation: The current mode operation provides excellent line and load transient response, as well as cycle-by-cycle current limiting.
• Opti-Loop® Compensation: This feature minimizes the output voltage overshoot and optimizes transient response while allowing a wide range of output capacitors.
• Low Shutdown IQ: The device features a low shutdown quiescent current of under 10μA, which enhances energy efficiency when in shutdown mode.

Protection Features

• Overvoltage Protection: The controller includes overvoltage protection that safeguards the circuit from excessive input voltages.
• Undervoltage Lockout: The undervoltage lockout (UVLO) ensures that the device operates only when the input voltage is within its specified range.
• Thermal Protection: An internal thermal shutdown mechanism provides additional safety by turning off the device if it overheats.

The LTC3823EUH#PBF comes in a compact 5mm x 5mm QFN-32 package, offering a space-saving solution for modern PCB layouts. Its robust design and comprehensive set of features make it an ideal choice for designers looking for a high-efficiency, easy-to-use power management solution.