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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 0.15 mA
Shutdown Current Typ 1.5 µA

Technical Documents

Recommended Soldering Techniques


Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Countries/Regions
AP62300TWU-7 Digi-Key Electronics 2750 10/23/2020 Buy Now Europe, Asia, North America
AP62300TWU-EVM Mouser Electronics Inc. 5 10/24/2020 Buy Now South America, North America, Asia, Europe, Middle East
AP62300TWU-EVM Digi-Key Electronics 5 10/23/2020 Buy Now Europe, Asia, North America