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The AP62200 is a 2A, synchronous buck converter with a wide input voltage range of 4.2V to 18V. The device fully integrates a 90mΩ high-side power MOSFET and a 65mΩ low-side power MOSFET to provide high-efficiency step-down DC/DC conversion.

The AP62200 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 AP62200 design is optimized for Electromagnetic Interference (EMI) reduction. It has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turnoff times, which reduces high-frequency radiated EMI noise caused by MOSFET switching.

The device is available in a SOT563 or TSOT26 package.


  • Flat Screen TV Sets and Monitors
  • Set Top Boxes
  • Consumer Electronics
  • Network Systems
  • General Purpose Point of Load


  • VIN: 4.2V to 18V
  • Output Voltage (VOUT): 0.8V to 7V
  • 2A Continuous Output Current
  • 0.8V ± 1% Reference Voltage (TA = +25°C)
  • 135μA Low Quiescent Current
  • 740kHz Switching Frequency (VIN = 12V, VOUT = 5V)
  • Up to 84% Efficiency at 5mA Light Load
  • Proprietary Gate Driver Design for Best EMI Reduction
  • Protection Circuitry

o Undervoltage Lockout (UVLO)

o Cycle-by-Cycle Valley Current Limit

o Thermal Shutdown

  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)

Product Specifications

Product Parameters

Type Buck
Efficiency 95 %
HS RDS(ON) 90 mΩ
LS RDS(ON) 65 mΩ
Frequency Typ 750 kHz
Minimum Input Voltage 4.2 V
Maximum Input Voltage 18 V
Output Current 2 A
Output Voltage 0.763 to 7.0 V
Quiescent Current Typ 0.135 mA
Shutdown Current Typ 1.3 µA

Technical Documents

Recommended Soldering Techniques



Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Countries/Regions
AP62200TWU-7 Digi-Key Electronics 2950 10/21/2020 Buy Now Europe, Asia, North America
AP62200TWU-7 Mouser Electronics Inc. 3000 10/21/2020 Buy Now South America, North America, Asia, Europe, Middle East
AP62200TWU-EVM Digi-Key Electronics 5 10/21/2020 Buy Now Europe, Asia, North America
AP62200TWU-EVM Mouser Electronics Inc. 5 10/21/2020 Buy Now South America, North America, Asia, Europe, Middle East