Diodes Incorporated

Demoboard AP65111AWU-EVM

500kHz, 18V, 1.5A, Current Mode, DCM/CCM Synchronous DC/DC Buck Converter in TSOT26

Topologie: Buck
Eingangsspannung (min.): 4.50 V
Eingangsspannung (max.): 18.00 V
Ausgang 1: 3.30 V / 1.500 A

Erstveröffentlichung am 07.12.2017, Version 1.0 vom


The AP65111A is a 500kHz switching frequency internal compensated synchronous DC/DC buck converter. It has integrated low RDSON high and low side MOSFETs.The AP65111A enables continuous load current of up to 1.5A with efficiency as high as 97%.The AP65111A implements an automatic custom light load efficiency improvement algorithm.The AP65111A features current mode control operation, which enables fast transient response times and easy loop stabilization.


  • 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


  Artikel Nr. SPEC Produktserie RDC
Material IR
Version Muster
744325650 PDF WE-HCI SMT-Hochstrominduktivität 12.5 6.5 Superflux 8.4 5 10 27 SMT