120mΩ, 2.5A Power Switch with Adjustable Current Limit

RT2528A Feature Product

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The RT2528A is a cost effective, low voltage, P-MOSFET power switch IC with an adjustable current limit feature. Low on-resistance (74mΩ typ.) and low supply current (120μA typ.) are designed in this IC.

The RT2528A offers an adjustable current limit threshold between 0.5A and 2.5A (typ.) via an external resistor. The ±10% current limit accuracy can be realized for all current limit settings.

The RT2528A is an ideal solution for power supply applications since it is functional for various current limit requirements. The RT2528A is available in the thermal enhanced SOP-8 (Exposed Pad) package.


  • Automotive Audio, Navigation & Info Systems
  • Industrial Grade General Purpose Point of Load
  • Digital Set Top Boxes
  • Vehicle Electronics
Key Spec.
Status Active
Number of Outputs 1
Vin (min) (V) 2.5
Vin (max) (V) 5.5
Ron (typ) (mOhm) 74
Iq (typ) (mA) 0.12
Current Limit (typ) (A) 2.5
FLAG Indicator Yes
Iocp Adjustable Yes
Switch Type Power Switch
Features AEC-100 Qualified;Adjustable Current Limit;OCP
Package Type PSOP-8
  • Adjustable Current Limit : 0.5A to 2.5A (typ.)
  • ±10% Current Limit Accuracy @ 2A Over Temperature
  • 120mΩ (max) P-MOSFET
  • Low Supply Current : 120μA
  • Input Operating Voltage Range : 2.5V to 5.5V
  • Reverse Input-Output Voltage Protection
  • Built-in Soft-Start
  • AEC-Q100 Grade 3 Qualified
  • RoHS Compliant and Halogen Free
TitleLast UpdateShareDownload
120mΩ, 2.5A Power Switch with Adjustable Current Limit2020/04/29
Technical Documents
TitleLast UpdateShareDownload
Richtek Selection Guide [Oct., 2020]2020/12/30
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT2528AGSPPSOP-82500 Request Buy from Distributor