AP68255Q

Description

The AP68255Q/AP68355Q is an internally compensated, standard DC-DC buck converter with a default frequency of 300kHz. The device fully integrates a 500mΩ high-side power MOSFET power MOSFET to provide highly efficient step-down DC-DC conversion.

The AP68255Q/AP68355Q device is easily used by minimizing the external component count due to its adoption of Constant On-Time (COT) control to achieve fast transient response, easy loop stabilization, and low output voltage ripple.

The AP68255Q/AP68355Q design is optimized for Electromagnetic Interference (EMI) reduction. The device has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which reduces high frequency radiated EMI noise caused by MOSFET switching.

The AP68255Q/AP68355Q is available in the standard Green SO-8EP package.  

Feature(s)

• Qualified for Automotive Applications
• AEC-Q100 Qualified with the Following Results
• Device Temperature Grade 1: -40°C to +125°C T_A
• Device HBM ESD Classification Level 1C
• Device CDM ESD Classification Level C5
• Functional Safety-Capable ISO26262 – Documentation Available to Aid Functional Safety System Design
• V_IN5V to 80V
• 2V ±1.5% V_REF
• Continuous Output Current
  • AP68255Q: 2.5A
  • AP68355Q: 3.5A
• V_OUT Adjustable from 1.2V to 50V
• Overcurrent Protection (OCP)
• Thermal Protection
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• The AP68255Q/AP68355Q are suitable for automotive applications requiring specific change control; these parts are AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/

Application(s)

• General-purpose point-of-load DC/DC power conversion
• Automotive infotainments
• Telecommunication systems
• Distributed power systems
• Home audio devices
• Consumer electronics
• Network systems
• FPGA, DSP, and ASIC supplies
• Green electronics