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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
Key Spec.
RTQ9728W
Status Active
Number of Outputs 1
Vin (min) (V) 2.5
Vin (max) (V) 6
Ron (typ) (mOhm) 74
Iq (typ) (mA) 0.12
Current Limit (typ) (A) 2
FLAG Indicator Yes
Iocp Adjustable Yes
Switch Type Power Switch
Features Adjustable Current Limit;Enable Input;OCP
Package Type WDFN2x2-6S;SOT-26
Features
  • Adjustable Current Limit : 0.1A to 2.5A (typ.)
  • ±10% Current-Limit Accuracy @2A Over Temperature
  • 150mΩ (max) P-MOSFET
  • Low Supply Current : 120μA
  • Input Operating Voltage Range : 2.5V to 6V
  • Reverse Input-Output Voltage Protection
  • Built-in Soft-Start
  • 15-kV ESD Protection per IEC 61000-4-2 (With External Capacitance)
  • Nemko Approved IEC62368-1
  • RoHS Compliant and Halogen Free
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2024] Selection Guide2024/01/18
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RTQ9728WGQW(2)WDFN2x2-6S3,000 Request Digikey 751 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Evaluation Board
Part NumberDistributorStockBuy From Authorized Distributor
EVB_RTQ9728WGQW(2) Digikey 5 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Please confirm with our distributor or sales representative for actual stock status.
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