News Article
AOD introduces space-saving half-bridge MOSFET
New chip reduces footprint for space-constrained DC-DC buck applications
Alpha and Omega Semiconductor (AOS) has introduced the AONG36322 XSPairFET for space-constrained DC-DC applications.
The new AONG36322 features two 30V MOSFETs in a half-bridge configuration where the high-side and the low-side MOSFETs are in an asymmetric DFN3.5x5 XSPairFET package.
This design allows the AONG36322 to replace an existing DFN5x6 asymmetric half-bridge MOSFET with an approximate 60 percent space-saving solution, thereby reducing the PCB footprint to further streamline the DC-DC architecture, resulting in a more efficient design. These benefits make the AONG36322 suitable for a new generation of smaller DC-DC buck converters in more compact applications such as point-of-load (POL) computing, USB hubs, and power banks, according to AOS.
The AONG36322 is an extension to the AOS XSPairFET lineup, designed with the latest bottom-source packaging technology. Its integrated high-side and low-side MOSFETs feature 4.5 mOhms and 1.3 mOhms maximum on-resistance, respectively, where the low-side MOSFET source is connected directly to the exposed pad on the PCB to enhance thermal dissipation. The AONG36322 package design is said to deliverlower parasitic inductance, significantly reducing switch node ringing.
“We designed the AONG36322 in the DFN3.5x5 package to help our customers meet their ongoing board space limitations. Our breakthrough AOS XSPairFET design also gives them the benefit of improved power density and efficiency to overcome the challenge developers face in meeting ever-increasing POL Buck application performance goals,” said Peter H. Wilson, marketing senior diirector of MOSFET product line at AOS.
The AONG36322 is immediately available in production quantities with a lead time of 16 weeks. The unit price in 1,000-piece quantities is $0.915.
