1 Features

• Integrated 4.4mΩ half-bridge GaN FETs and driver

• 90V continuous, 100V pulsed voltage rating

• Package optimized for easy PCB layout

• High slew rate switching with low ringing

• 5V external bias power supply

• Supports 3.3V and 5V input logic levels

• Gate driver capable of up to 10MHz switching

• Excellent propagation delay (33ns typical) and

matching (2ns typical)

• Internal bootstrap supply voltage clamping to

prevent GaN FET Overdrive

• Supply rail undervoltage for lockout protection

• Low power consumption

• Exposed top QFN package for top-side cooling

• Large GND pad for bottom-side cooling

2 Applications

• Buck, boost, buck-boost converters

• LLC converters

• Solar inverters

• Telecom and server power

• Motor drives

• Power tools

• Class-D audio amplifiers

3 Description

The LMG2100R044 device is a 90V continuous, 100V

pulsed, 35A half-bridge power stage, with integrated

gate-driver and enhancement-mode Gallium Nitride

(GaN) FETs. The device consists of two 100V GaN

FETs driven by one high-frequency 90V GaN FET

driver in a half-bridge configuration.

GaN FETs provide significant advantages for power

conversion as they have zero reverse recovery

and very small input capacitance CISS and output

capacitance COSS. All the devices are mounted

on a completely bond-wire free package platform

with minimized package parasitic elements. The

LMG2100R044 device is available in a 5.5mm ×

4.5mm × 0.89mm lead-free package and can be

easily mounted on PCBs.

The TTL logic compatible inputs can support 3.3V

and 5V logic levels regardless of the VCC voltage.

The proprietary bootstrap voltage clamping technique

ensures the gate voltages of the enhancement mode

GaN FETs are within a safe operating range.

The device extends advantages of discrete GaN

FETs by offering a more user-friendly interface. It

is an ideal solution for applications requiring highfrequency,

high-efficiency operation in a small form

factor.