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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.


  • 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)


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

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
Type Buck
Minimum Input Voltage (V) 4.2
Maximum Input Voltage (V) 18
Output Current (A) 2
Minimum Output Voltage (V) 0.8
Maximum Output Voltage (V) 7
Quiescent Current Typ (µA) 135
Shutdown Current Typ (µA) 1.3
Frequency Typ (kHz) 750
HS RDS(ON) (mΩ) 90
LS RDS(ON) (mΩ) 65
Features Enable,Light Load Efficiency,Soft-start Fixed,UVLO Adjustable,Overcurrent Protection,Thermal Shutdown,Synchronous Rectification

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2605 2023-03-09 2023-06-09 Qualified Additional Cu Pillar Bump Site and Bill of Materials (BOM) Lead Frame Material
PCN-2520 2021-05-27 2021-08-27 Qualified Additional Bump Site and Assembly/Test (A/T) Sites
PCN-2501 2021-01-13 2021-04-13 Qualified Additional A/T Sites
PCN-2455 2020-03-11 2020-06-11 New Die Revision Change