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Partname:MAX1858AEEG+
Description:Dual 180° Out-of-Phase PWM Step-Down Controller with Power Sequencing and POR. Lead-free
Manufacturer:Maxim Integrated Products
Datasheet:PDF (537K).
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The MAX1858 dual, synchronized, step-down controller generates two outputs from input supplies ranging from 4.75V to 23V. Each output is adjustable from sub-1V to 18V and supports loads of 10A or higher. Input voltage ripple and total RMS input ripple current are reduced by synchronized 180 out-of-phase operation. The switching frequency is adjustable from 100kHz to 600kHz with an external resistor. Alternatively, the controller can be synchronized to an external clock generated to another MAX1858 or a system clock. One MAX1858 can be set to generate an in-phase, or 90 out-of-phase, clock signal for synchronization with additional controllers. This allows two controllers to operate either as an interleaved two- or four-phase system with each output shifted by 90. The device also features "first-on/last-off" power sequencing for compatibility with DSPs, ASICs, and FPGAs, as well as soft-start and soft-stop to ensure reliable and repeatable power sequencing.

Click here to download MAX1858AEEG+ Datasheet
Click here to download MAX1858AEEG+ Datasheet
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