AP63205

Description

The AP63200/AP63201/AP63203/AP63205 are 2A, synchronous buck converters with a wide input voltage range of 3.8V to 32V and fully integrates a 125mΩ high-side power MOSFET and a 68mΩ low-side power MOSFET to provide high-efficiency step-down DC/DC conversion.

The AP63200/AP63201/AP63203/AP63205 devices are easily used by minimizing the external component count due to their adoption of peak current mode control along with its integrated compensation network.

The AP63200/AP63201/AP63203/AP63205 have optimized designs for Electromagnetic Interference (EMI) reduction. The converter features Frequency Spread Spectrum (FSS) with a switching frequency jitter of ±6%, which reduces EMI by not allowing emitted energy to stay in any one frequency for a significant period of time. They also have a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which further erases high-frequency radiated EMI noise caused by MOSFET switching.

The devices are available in a low-profile, TSOT26 package.

Feature(s)

• VIN 3.8V to 32V
• 2A Continuous Output Current
• 0.8V ± 1% Reference Voltage
• 22µA Ultralow Quiescent Current
• Switching Frequency
  o 500kHz: AP63200 and AP63201
  o 1.1MHz: AP63203 and AP63205
• Pulse Width Modulation (PWM) Regardless of Output Load
  o AP63201
• Supports Pulse Frequency Modulation (PFM)
  o AP63200, AP63203, and AP63205
  o Up to 80% Efficiency at 1mA Light Load
  o Up to 88% Efficiency at 5mA Light Load
• Fixed Output Voltage
  o 3.3V: AP63203
  o 5.0V: AP63205
• Proprietary Gate Driver Design for Best EMI Reduction
• Frequency Spread Spectrum (FSS) to Reduce EMI
• Precision Enable Threshold to Adjust UVLO
• Protection Circuitry
  o Overvoltage Protection
  o Cycle-by-Cycle Peak Current Limit
  o Thermal Shutdown
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)

Application(s)

• 12V and 24V Distributed Power Bus Supplies
• Flat Screen TV Sets and Monitors
• Power Tools and Laser Printers
• White Goods and Small Home Appliances
• FPGA, DSP, and ASIC Supplies
• Home Audio
• Network Systems
• Set Top Boxes
• Gaming Consoles
• Consumer Electronics