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The AP62300/AP62301/AP62300T is a 3A, synchronous buck converter with a wide input voltage range of 4.2V to 18V. The device fully integrates a 75mΩ high-side power MOSFET and a 45mΩ lowside power MOSFET to provide high-efficiency step-down DC-DC conversion.

The AP62300/AP62301/AP62300T 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 AP62300/AP62301/AP62300T 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 highfrequency radiated EMI noise caused by MOSFET switching.

AP62300/AP62301 is available in a SOT563 and TSOT26 package. AP62300T is available in a TSOT26 package.

Product Specifications

Product Parameters

Type Buck
Efficiency 96 %
HS RDS(ON) 63 mΩ
LS RDS(ON) 36 mΩ
Frequency Typ 750 kHz
Minimum Input Voltage 4.2 V
Maximum Input Voltage 18 V
Output Current 3 A
Output Voltage 0.8 to 7 V
Quiescent Current Typ 0.265 mA
Shutdown Current Typ 1.5 µA

Technical Documents

Evaluation Boards and User Guides

Recommended Soldering Techniques



Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
AP62301WU-7 Digi-Key Electronics 2975 8/8/2020 Buy Now United States
AP62301Z6-7 Digi-Key Electronics 3000 8/8/2020 Buy Now United States