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Partname: | MAX1858 |
Description: | Dual 180?? Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR |
Manufacturer: | Maxim Integrated Products |
Datasheet: | PDF (553K). Click here to download *) |
The MAX1858A/MAX1875A/MAX1876A eliminate the need for current-sense resistors by utilizing the low-side MOSFET's on-resistance as a current-sense element. This protects the DC-DC components from damage during output-overload conditions or output short-circuit faults without requiring a current-sense resistor. Adjustable foldback current limit reduces power dissipation during short-circuit conditions. The MAX1858A/ MAX1876A include a power-on reset (POR) output to signal the system when both outputs reach regulation. The MAX1858A/MAX1875A/MAX1876A ensure that the output voltage does not swing negative when the input power is removed or when EN is driven low. The MAX1875A/MAX1876A also allow prebias startup without discharging the output. The MAX1858A/MAX1875A/MAX1876A are available in a 24-pin QSOP package. Use the MAX1875 evaluation kit or the MAX1858 evaluation kit to evaluate the MAX1858A/MAX1875A/MAX1876A. |
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Click here to download MAX1858 Datasheet*) |
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