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The AP65111A is an current mode synchronous buck converter providing high efficiency, excellent transient response and high DC output accuracy for low-voltage regulation in digital TV and monitor.

The AP65111A features UVLO, OTP, OVP and OCP to protect the circuit.

This IC is available in TSOT26 package.


  • Point of Load Power


  • Synchronous Rectification: 160mΩ Internal High-side Switch and 85mΩ Internal Low-side Switch
  • Wide Input Voltage Range: 4.5V to 18V
  • Output Voltage Range: adjustable from 0.8V
  • 1.5A Continuous Output Current
  • 500kHz Switching Frequency
  • Built-in Over Current Limit, Over Voltage Protect and UVLO
  • Built-in Thermal Shutdown Protection 
  • Available in smaller package, TSOT-26

Product Specifications

Product Parameters

Type Buck
Efficiency 97 %
Frequency Typ 500 kHz
Minimum Input Voltage 4.5 V
Maximum Input Voltage 18 V
Output Current 1.5 A
Output Voltage 0.8 to 6 V
Quiescent Current Typ 0.725 mA
Shutdown Current Typ 1 µA

Technical Documents

Recommended Soldering Techniques


Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
AP65111AWU-7 Arrow Electronics Central EU 3000 8/3/2020 Buy Now Germany
AP65111AWU-7 Mouser Electronics Inc. 22217 8/3/2020 Buy Now United States
AP65111AWU-7 Digi-Key Electronics 46626 8/2/2020 Buy Now United States
AP65111AWU-7 Future Electronics - Europe 51000 8/2/2020 England
AP65111AWU-7 RS Components 5900 8/2/2020 Buy Now England
AP65111AWU-7 RS Components Ltd. 5900 8/2/2020 Buy Now Japan