桂花蒸

LM5122MHX synchronous rectifier boost module

Overview

DC-DC chip LM5122MHX

Module input 9-20V. Input current limit 15A.

The output voltage is fixed 24V. (Or the potentiometer can be adjusted to 12-24v)

The output current does not exceed 4.5A. The maximum total power is not recommended to exceed 100W.

Appropriately increase the heat dissipation device.

For a boost module, the input is always lower than the output.

The port is two binding posts

The LM5122 is a synchronous boost controller with polyphase capability for high-efficiency synchronous boost regulator applications. The control method is based on peak current mode control. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting, and easy loop compensation.

The switching frequency is programmable up to 1MHz. Higher efficiency is achieved through two robust N-channel MOSFET gate drivers with adaptive dead-time control. A user-selectable diode emulation mode also supports discontinuous mode operation, improving efficiency under light load conditions.

Design Files

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Update:2024-11-15 02:15:52

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