AP62800

Description

The AP62800 is an 8A, synchronous buck converter with a wide input voltage range of 4.5V to 17V. The device fully integrates a 22mΩ high-side power MOSFET and a 10mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion.

The AP62800 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 AP62800 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 device is available in a V-QFN2030-12 (Type A) package.

Feature(s)

• VIN: 4.5V to 17V
• Output Voltage (VOUT): 0.6V to 7V
• 8A Continuous Output Current
• 6V ± 1% Reference Voltage
• 195μA Quiescent Current
• Selectable Switching Frequency
  • 400kHz
  • 800kHz
  • 2MHz
• Selectable Operation Modes
  • Pulse Frequency Modulation (PFM)
  • Ultrasonic Mode (USM)
  • Pulse Width Modulation (PWM)
• Programmable Soft-Start Time
• Proprietary Gate Driver Design for Best EMI Reduction
• Power-Good Indicator with 5MΩ Internal Pull-up Resistor
• Precision Enable Threshold to Adjust UVLO
• Protection Circuitry
  • Undervoltage Lockout (UVLO)
  • Cycle-by-Cycle Valley Current Limit
  • Thermal Shutdown
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

• 5V and 12V distributed power bus supplies
• Television sets and monitors
• White goods and small home appliances
• FPGA, DSP, and ASIC supplies
• Home audios
• Network systems
• Gaming consoles
• Consumer electronics
• General purpose point of loads