Emerging computing applications demand more power in much smaller form factors. In addition to the expanding needs of the server market, some of the most challenging applications are multi-user gaming systems, autonomous cars, and artificial intelligence.

Additionally, automotive systems are moving from 12 V distribution systems to 48 V systems. This change is driven by the increase of power-hungry electronically-driven functions and the emergence of autonomous vehicles creating additional demands from systems such as lidar, radar, camera, and ultrasonic sensors upon the power distribution system.

These advanced applications are putting higher demands on the power converters, and silicon-based power conversion is not keeping pace.

The latest generation of 100 V GaN devices increase the efficiency, shrink the size, and reduce system cost for 48 V power conversion.

Application Brief – eGaN FETs and ICs for DC-DC Conversion

Application Brief – eGaN FETs and ICs for Automotive DC-DC Applications

48 V = GaN: In all the topologies with 48 V_IN, the highest efficiency comes with using GaN devices.

	Part Number	Configuration	VDS	Max RDS(on) (mΩ) (VGS = 5 V)	QG typ (nC)	QGS typ (nC)	QGD typ (nC)	QOSS typ (nC)	Max. Peak Pulsed ID(A) (25°C, Tpulse = 300µs)	Package (mm)	Half-Bridge Development Boards	48 V Reference Design	How2AppNote
	EPC2053	Single	100	3.8	12	4.1	1.5	45	246	BGA 3.5 x 2	EPC9093		48 V - 6 V, 900 W LLC 48 V - 12 V, 900 W LLC
	EPC2045	Single	100	7	5.9	1.9	0.8	25	130	BGA 2.5 x 1.5	EPC9078	EPC9141 48 V – 12 V, 10 A Buck Converter	48 V - 12 V, 60 A Multi-Phase
											EPC9205		48 V to 5 - 12 V DC-DC
	EPC2052	Single	100	13.5	3.6	1.5	0.5	13	74	BGA 1.5 x 1.5	EPC9092
	EPC2051	Single	100	25	1.7	0.6	0.3	7.3	37	BGA 0.85 x 1.3	EPC9091

ePower™ Stage

	Part Number	Configuration	Nominal Logic Supply Voltage (V)	Max. Input Voltage (V)	Typ. RDS(on) (mΩ)	Rated Output Current (A)	Features	Fault Protection	Max. TJ (°C)	Package (mm)	Development Board
	EPC2152	Half-Bridge ePower™ Stage	12	70	10	12.5	Level shifting, Bootstrap circuits	UVLO	150	LGA 3.65 x 2.59	EPC90120