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LMG3624
  • LMG3624
  • LMG3624

LMG3624

ACTIVE

700V 155mΩ GaN FET with integrated driver, protection and current sensing

Texas Instruments LMG3624 Product Info

1 April 2026 3

Parameters

VDS (max) (V)

650

RDS(on) (mΩ)

170

ID (max) (A)

6

Features

Bottom-side cooled, Current sense, Cycle-by-cycle overcurrent protection, Enable pin, Low Quiescent Current, Low standby current, Overtemperature protection, Slew Rate Control, Wide input voltage

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Package

VQFN (REQ)-38-42.4 mm² 8 x 5.3

Features

  • GaN power FET: 700V, 155mΩ,
  • Integrated gate driver with low propagation delays and adjustable turn-on slew-rate control
  • Current-sense emulation with high bandwidth and high accuracy
  • Cycle-by-cycle overcurrent protection
  • Overtemperature protection with FLT pin reporting
  • AUX quiescent current: 240µA
  • AUX standby quiescent current: 50µA
  • Maximum supply and input logic pin voltage: 26V
  • 8mm × 5.3mm QFN package with thermal pad
  • GaN power FET: 700V, 155mΩ,
  • Integrated gate driver with low propagation delays and adjustable turn-on slew-rate control
  • Current-sense emulation with high bandwidth and high accuracy
  • Cycle-by-cycle overcurrent protection
  • Overtemperature protection with FLT pin reporting
  • AUX quiescent current: 240µA
  • AUX standby quiescent current: 50µA
  • Maximum supply and input logic pin voltage: 26V
  • 8mm × 5.3mm QFN package with thermal pad

Description

The LMG3624 is a 700V 155mΩ GaN power FET intended for switch-mode power-supply applications. The LMG3624 simplifies design and reduces component count by integrating the GaN FET and gate driver in a 8mm × 5.3mm VQFN package.

Programmable turn-on slew rates provide EMI and ringing control. The current-sense emulation reduces power dissipation compared to the traditional current-sense resistor and allows the low-side thermal pad to be connected to the cooling PCB power ground.

The LMG3624 supports converter light-load efficiency requirements and burst-mode operation with low quiescent currents and fast start-up times. Protection features include under-voltage lockout (UVLO), cycle-by-cycle current limit, and overtemperature protection. Overtemperature protection is reported with the open-drain FLT pin.

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