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0.2A Single Channel Current-Limited Power Switch

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The AP2331 is a single channel current-limited integrated high-side power switcher optimized for hot-swap applications. The devices have fast short-circuit response time for improved overall system robustness and provide a complete protection solution for application subject to heavy capacitive loads and the prospect of short circuit. It offers reverse-current blocking, over-current, over-temperature and shortcircuit protection, as well as controlled rise time and under-voltage lockout functionality.
The device is available in SOT23, SC59 and U-DFN2020-3 packages.


  • LCD TVs & Monitors
  • Set-Top Boxes, Residential Gateways
  • Laptops, Desktops, Servers
  • Printers, Docking Stations, HUBs
  • Smart phones, e-Readers

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Maximum Continuous Output Current (A) 0.2
(MAX) Maximum Current Limit Fixed (A) 0.5
Channels 1
Enable Logic No Enable
Minimum Operating Voltage (V) 2.7
Maximum Operating Voltage (V) 5.5
Quiescent Current Typ (µA) 65
RDS(ON) (VIN = 5V) Typ (mΩ) 110
Reverse Current Block Yes
Output Discharge No
(TYP) Output Rise Time mS 0.7
OCP Output Latch Off No
OCP Flag No
Power Good No
Operating Ambient Temperature Range (°C) -40 to 85
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-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site