Alpha and Omega Semiconductor Reveals a 5mm x 5mm DrMOS Power Module Delivering up to 60A

Higher power density for today's high-end computing, servers, and graphic applications

Alpha and Omega Semiconductor Limited (AOS) , a designer, developer and global supplier of a broad range of power semiconductors and power ICs, introduced AOZ5131QI, the latest generation of power modules. The new device enables high power-density voltage regulator solutions ideal for CPU and GPU power regulation in notebook PCs, servers, and graphic cards.

The new AOZ5131QI integrates a dual gate driver and two optimized MOSFETs in a 31-pin 5mm x 5mm QFN package to produce a high power and high-efficiency power stage for synchronous step-down applications. The standard 5mm x 5mm QFN package is designed to provide maximum power density with low parasitic inductance and minimal EMI signature.

“The AOZ5131QI is the latest addition to our QFN5x5 standard package footprint series. By integrating FETs optimized for 12V input, the new device enables high efficiency and high-power density to satisfy the ever increasing customers’ demand for higher performance in smaller and more power efficient products,” said Mehdy Khotan, Product Marketing Director for DrMOS product line at Alpha and Omega Semiconductor.

AOZ5131QI High-Current, High-Performance DrMOS Power Module:


  • 4.5V to 18V power supply range
  • 4.5V to 5.5V driver supply range
  • Up to 60A peak output current
  • Integrated booststrap diode
  • Up to 2MHz switching operation
  • Tri-state PWM input compatible
  • Under-Voltage LockOut protection
  • Single FCCM pin control for shutdown / diode emulation / CCM operation
  • Low profile 5×5 QFN-31L package


  • Servers
  • Notebook computers
  • VRMs for motherboards
  • Point of load DC/DC converters
  • Memory and graphic cards
  • Video gaming console

Technical Highlights:

Input Voltage Range: 4.5V to 18V
Output Current: Up to 60A
Switching Frequency: Up to 2MHz
Package: 31-pin 5mm x 5mm QFN
Standard: IMVP8

Device Spec Table:

Part Number Min (V) Max (V) Max Current (A) PWM Logic Package
AOZ5049QI 4.5 25 35 5V QFN 3.5x5_24L
AOZ5131QI 4.5 18 60 5V QFN 5x5A_31L
AOZ5038QI 4.5 25 60 5V QFN 5x5A_31L
AOZ5039QI 4.5 25 50 5V QFN 5x5A_31L
AOZ5048QI 4.5 25 35 5V QFN 3.5x5_24L

Pricing and Availability:
The AOZ5131QI is immediately available in production quantities with a lead-time of 12 weeks. The unit price for 1,000 pieces is $2.20.