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The RTQ9728W is a cost effective, low voltage, P-MOSFET power switch IC with an adjustable current-limit feature. Low on-resistance (120mΩ typ.) and low supply current (120μA typ.) are designed in this IC.

The RTQ9728W can offer an adjustable current-limit threshold between 0.1A and 2.5A (typ.) via an external resistor. The ±10% current-limit accuracy can be realized for all current-limit settings.

The RTQ9728W is an ideal solution for power supply applications since it is functional for various current-limit requirements. It is available in WDFN-6SL 2x2 and SOT-23-6 packages.

Applications

  • Digital TVs
  • Set Top Boxes
  • VOIP Phones
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2026] Selection Guide2026/01/12
Part NumberPackage TypePackage Qty.DistributorStockBuy From Authorized Distributor
RTQ9728WGQW(2)WDFN2x2-6S3,000 Digikey 2,320 Buy
0 Lead-Time: 14 weeks
Evaluation Board
Part NumberDistributorStockBuy From Authorized Distributor
EVB_RTQ9728WGQW(2) Digikey 0 Lead-Time: 14 weeks
Mouser 0 Lead-Time: 14 weeks
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