Diodes Incorporated AP22653Q Precision-Adjustable Power Switches

Diodes Incorporated AP22653Q Precision-Adjustable Power Switches


Diodes Incorporated AP22653Q Precision-Adjustable Current-Limited Power Switches are optimized for applications that require precision current limiting or to provide up to 1.5A of continuous load current during heavy loads/short circuits. The AP22653Q Switches provide a programmable current-limit threshold between 125mA and 1735mA (typ) via an external resistor. Utilizing high current limit settings, a ±7% current limit accuracy is achieved. Rise and fall times are controlled to minimize current surges during turn on/off.

The AP22653Q provides a complete protection solution for applications subject to heavy capacitive loads and the prospect of short circuit, offering reverse current blocking and limiting, overcurrent, overtemperature, short-circuit protection, as well as controlled rise-time and under-voltage lockout functionality.

A 6ms de-glitch capability on the open-drain flag output prevents false overcurrent reporting and does not require any external components. The AP22653Q limits the output current to a safe level when the output current exceeds the current-limit threshold.

The Diodes Inc AP22653Q Precision-Adjustable Power Switches have a fast short-circuit response time for improved overall system robustness and are available in the SOT26 (Type A1) package.


  • Up to 1.5A maximum load current
  • Accurate adjustable current limit, 125mA to 1735mA
  • ±7% Accurate adjustable current limit, 1.735A with RLIM = 15kΩ
  • Constant-current version
  • 5µs (Typ.) Fast short-circuit response time
  • Reverse current blocking during shutdown and reverse current limiting during enable
  • 3.0V to 5.5V Operating range
  • Built-in soft-start with 0.5ms typical rise time
  • Over-current, output over-voltage and thermal protection
  • Fault report (FAULT) with blanking time
  • 2kV HBM, 750V CDM ESD protection
  • Enable active high
  • SOT26 Package available in “green” molding compound (no Br, Sb)
  • 16kV ESD protection per IEC61000-4-2 (with external capacitance)
  • UL Recognized
  • IEC60950-1 CB Scheme certified
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C3B
  • Totally lead-free & fully RoHS compliant
  • Halogen and antimony free, “green” device

Typical Application

Block Diagram

more information: https://www.diodes.com/part/view/AP22653Q

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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