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

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