Diodes Incorporated

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1.0A/1.5A/2.0A Single Channel Power Distribution Load Switch

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The AP22816/17/18 is a single-channel, current-limited, integrated high-side power switch optimized for Universal Serial Bus (USB) and other hot-swap applications. The family of devices complies with USB standards and is available with both polarities of enable input. The device has fast short-circuit response time for improved overall system robustness, and has an integrated output discharge function to ensure completely controlled discharging of the output voltage capacitor. They provide a complete protection solution for applications subject to heavy capacitive loads and the prospect of short circuit, and offer reverse current blocking, overcurrent, overtemperature and short-circuit protection, as well as controlled rise time and undervoltage lockout functionality. A 6ms deglitch capability on the open-drain flag output prevents false overcurrent reporting and does not require any external components. The AP22816/17/18 is available in the standard Green and RoHS compliant TSOT25 and MSOP-8 packages.


  • Input Voltage Range: 2.7V to5V
  • 75mΩ On-Resistance
  • Built-In Soft-Start with 0.6ms Typical Rise Time
  • Fault Report (FLG) with Blanking Time (6ms Typ.)
  • Logic Level Enable Pin: Available with Active-High or Active-Low Versions
  • Protections:
    • ESD Protection: 2kV HBM, 500V CDM
    • Overcurrent Protection with Auto-Recovery
    • Short-Circuit Protection with Auto-Recovery
    • Overtemperature Protection with Auto-Recovery
    • Output Reverse Current / Voltage Protection
  • Thermally Efficient Low Profile Package
  • Moisture Sensitivity: Level 1 per J-STD-020
  • Terminals: Finish–Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208
  • Weight:
    • TSOT25: 0.013 grams (Approximate)
    • MSOP-8: 0.027grams (Approximate)
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device
  • 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/


  • Integrated Load Switches in Ultrabook PCs
  • Power Up/Down Sequencing in Ultrabook PCs
  • Notebooks
  • Netbooks
  • Set-Top Boxes
  • SSD (Solid State Drives)
  • Consumer Electronics
  • Tablet PCs
  • Telecom Systems

Product Specifications

Product Parameters

Type OCP Switch
AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Maximum Continuous Output Current (A) 1.5
(MAX) Maximum Current Limit Fixed (A) 2.8
Adjustable Current Limit No
Channels 1
Enable Logic Active High
Minimum Operating Voltage (V) 2.7
Maximum Operating Voltage (V) 5.5
Quiescent Current Typ (µA) 80
RDS(ON) (VIN = 5V) Typ (mΩ) 75
Reverse Current Block Yes
Minimum Power Supply Voltage (V) 2.7
Maximum Power Supply Voltage (V) 5.5
Output Discharge Yes
(TYP) Output Rise Time mS 2.1
OCP Output Latch Off No
OCP Flag Yes
Power Good No
Operating Ambient Temperature Range (°C) -40 to 85
Overtemperature Protection Yes
UL Certificate Yes

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Technical Documents

Recommended Soldering Techniques



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-2648 2023-10-19 2024-01-20 Additional Wafer Source SPFAB