Diodes Incorporated

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1.5A Single Slew Rate Controlled Load Switch

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The AP22908 slew rate controlled load switch is a single P-channel MOSFET power switch designed for high-side load-switching applications. The MOSFET has a typical low RDS(ON) of 28mΩ at 3.6V, allowing increased load current handling capacity with a low forward voltage drop. The turn-on slew rate of the device is controlled internally to avoid inrush current.

The AP22908 load switch is designed to operate from 1.08V to 3.6V, making it ideal for 1.2V, 1.8V, 2.5V, 3.3V and 3.6V systems. The typical quiescent supply current is only 0.05μA. The AP22908 is available in the wafer level chip scale 4-pin, X1-WLB0909-4 0.5mm pitch and standard SOT26.


  • Wide Input Voltage Range: 1.08V to 3.6V
  • Low On-Resistance:
  • 69mΩ Typical @1.2V
  • 41mΩ Typical @1.8V
  • 33mΩ Typical @2.5V
  • 28mΩ Typical @3.6V
  • High DC Current Capability up to 1.5A
  • Quick Discharging by Output Discharge Resistance
  • Ultra Low Quiescent Current 0.05μA
  • Active-High Control Pin
  • Minimum 0.9V VIH of ON
  • ESD Protection:
  • Human Body Model: 2kV
  • Charged Device Model: 1kV
  • Package:
  • X1-WLB0909-4 with Backside Laminate
  • 0.87mm x 0.87mm, 0.5mm Ball Pitch
  • Standard Green SOT26
  • Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/


  • Mobile Device and Smart Phones
  • Portable Media Devices
  • Wearable Devices
  • Advanced Notebook, UMPC and MID
  • Portable Medical Devices
  • GPS and Navigation Equipment
  • Portable Instrumentation

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Maximum Continuous Output Current (A) 1.5
(MAX) Maximum Current Limit Fixed (A) Not Limited
Channels 1
Enable Logic Active High
Minimum Operating Voltage (V) 1.08
Maximum Operating Voltage (V) 3.6
Quiescent Current Typ (µA) 0.05
RDS(ON) (VIN = 5V) Typ (mΩ) -
Reverse Current Block No
Output Discharge Yes
(TYP) Output Rise Time mS 0.105
OCP Output Latch Off N/A
OCP Flag No
Power Good No
Operating Ambient Temperature Range (°C) -40 to 85
UL Certificate No

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2531 2021-07-30 2022-01-29 Additional Die Revision, Redistribution Layer (RDL), BUMP Sites (SJSEMI and LBS), as well as Assembly/Test (A/T) Site (CAT)