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The AP62150 is a 1.5A, synchronous buck converter with a wide input voltage range of 4.2V to 18V. The device fully integrates a 90mΩ highside power MOSFET and a 65mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion.

The AP62150 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 AP62150 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 high-frequency radiated EMI noise caused by MOSFET switching.

AP62150 is available in SOT563 and TSOT26 packages.


  • VIN: 4.2V to 18V
  • Output Voltage (VOUT): 0.8V to 7V
  • 1.5A Continuous Output Current
  • 0.8V ± 1% Reference Voltage (TA = +25°C)
  • 135μA Low Quiescent Current (Pulse Frequency Modulation)
  • 1.3MHz Switching Frequency (VIN = 12V, VOUT = 5V)
  • Proprietary Gate Driver Design for Best EMI Reduction
  • Protection Circuitry
  • Undervoltage Lockout (UVLO)
  • Cycle-by-Cycle Valley Current Limit
  • Thermal Shutdown
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/


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Product Specifications

Product Parameters

Type Buck
Efficiency (%) 93 %
HS RDS(ON) (mΩ) 90 mΩ
LS RDS(ON) (mΩ) 65 mΩ
Frequency Typ (Hz) 1300 kHz
MinimumInput Voltage (V) 4.2 V
MaximumInput Voltage (V) 18 V
Output Current (mA) 1.5 A
Output Voltage (V) 0.8 to 7.0 V
Quiescent Current Typ (mA) 0.135 mA
Shutdown Current Typ (µA) 1.3 µA

Technical Documents

Evaluation Boards and User Guides


Recommended Soldering Techniques


Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
Contact Sales
Request Samples
Qty. Carrier
AP62150WU-7 Active TSOT26 (Standard) TPGP 3000 T&R Contact Sales Request Sample
AP62150Z6-7 Active SOT563 (Standard) TPGP 3000 T&R Contact Sales Request Sample

Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free


Product Change Notices

PCN # Issue Date Implementation Date Subject
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