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Using LM27222 direct ,without mosfet to drive 500mA@5V pwm signal

Prodigy 170 points

Replies: 1

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Dear Sir / Madam

In a new design I have a request to drive 500 mA@5V load, from PWM signal coming out off  a microcontroller (frequency 80Khz)

I would like to know whether I can use the LM27222 do drive the load without the Mosfet's (no higher current then 500mA is needed)

Whether your answer is YES - please show me how to connect the LM27222 to load?

Best regards


Yuval Izhaki

  • Hi Yuval,
    Sorry about the delayed response. This post slipped through the crack. The peak sourcing and sinking current of each LM27222 drivers(HG and LG) is 3Aand 4.5A respectively. So I don't see a problem driving a 500mA current directly from the controller.

    Kaisar Ali

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