30V mosfet half-bridge in 3.5 x 5mm DFN switches ~100A

Alpha and Omega Semiconductor has designed an asymmetrical half-bridge mosfet pair in a 3.5 x 5mm DFN package for high-current dc-dc converters.

Rated at 30V, AONG36322 has a 83A <4.5mΩ high-side transistor and a 163mA <1.3mΩ low-side transistor with 10V gate drive. On-resistances rise to <8mΩ and <1.75mΩ respectively with 4.5V gate drive.

“AONG36322 [is] ideal for a new generation of smaller dc-dc buck converters in more compact applications such as point-of-load computing, USB hubs and power banks,” according to the company.

AONG36322	V_DS	V_GS	R_DS(on) max		Ciss (nF)	Coss (pF)	Crss (pF)	Qg (nC)
AONG36322	V_DS	V_GS	10Vgs	4.5Vgs	Ciss (nF)	Coss (pF)	Crss (pF)	Qg (nC)
High Side (Q1)	30V	±20V	4.5mΩ	8mΩ	1.15	380	555	7.5
Low Side (Q2)	30V	±12V	1.3mΩ	1.75mΩ	4.18	880	125	30