Analog Devices Inc./Maxim Integrated MAX4846ELT+T

The MAX4846 monitors an adapter or system input and pulls down the gate of an external n-channel MOSFET when the input exceeds its overvoltage threshold. It is a controller, not an integrated high-current load switch. Its internal charge pump drives the external FET gate without an external pump capacitor.

The exact MAX4846ELT+T order code designates a six-pin µDFN package, 1.5 × 1.0 mm. The LCDChip catalog and package register use the canonical label 6-WFDFN for this package grouping. Confirm the manufacturer's current mechanical drawing and terminal orientation before PCB release.

Layout checks

• Check 1.5 × 1.0 mm body size and land pattern against the controlled package drawing.
• Place the 1 µF IN bypass capacitor close to the device.
• Size the external MOSFET for fault voltage, dissipation and load current.

The registered 6-WFDFN JPG is not present locally. The expected image path is retained; this detail must remain unpublished until the image is supplied and verified.

The manufacturer's MAX4843–MAX4846 µDFN pin configuration assigns these terminal functions.

Do not transfer these pad assignments to a different package drawing without checking its pin-1 index.

Nominal and conditional figures are identified as such. Verify minimum and maximum limits in the controlled datasheet at the intended operating point.

MAX4843, MAX4844 and MAX4845 are related controllers but use different nominal overvoltage trip and, for several variants, UVLO thresholds. They are not assumed to be drop-in replacements. Compare the complete order code, package, pinout, threshold tolerances, MOSFET arrangement, startup behavior and host fault logic before substitution. No internal alternate-product link is provided without an exact catalog and compatibility check.

Analog Devices hosts the Maxim Integrated MAX4846 product information and identifies the part as obsolete. Obtain current lifecycle and last-time-buy guidance directly from the manufacturer before specifying it in a new design.

Confirm the full order code, top marking, package dimensions, orientation and traceability records at incoming inspection. Test the intended UVLO and overvoltage transitions with the selected external MOSFET; do not treat a catalog listing as proof of current manufacturer production.

Check the controlled datasheet, package drawing, present lifecycle status and MOSFET safe operating area before production use. Verify input transients, reverse-current requirements, thermal behavior and fault signaling at system level. This detail cannot be published until its package JPG and rendered page are verified.