Diodes Incorporated DMT32M5LFG-7

Overview

DMT32M5LFG-7 from Diodes Incorporated is a 30V N-channel enhancement-mode MOSFET in PowerDI3333-8 package, delivering 1.7mΩ R_DS(ON) at V_GS = 10V and 100A continuous drain current at T_C = +25°C. It features 100% UIS avalanche rating, low Q_gd×R_DS(ON) figure-of-merit, and thermally efficient packaging optimized for high-density DC-DC converters.

For engineers reviewing the DMT32M5LFG-7 datasheet, DMT32M5LFG-7 pinout, DMT32M5LFG-7 application, or DMT32M5LFG-7 equivalent, this device is selected for high-efficiency power management where low conduction loss, fast switching, compact board area (33% of SO-8), and robust avalanche capability are critical design requirements.

Technical Context

This MOSFET employs trench-gate silicon technology to achieve ultra-low on-resistance while maintaining controlled gate charge (Q_g = 67.7nC at V_GS = 10V) and fast switching dynamics (t_F = 23.9ns). Its PowerDI3333-8 package integrates an exposed drain pad for direct thermal coupling to PCB copper, enabling 2.5°C/W junction-to-case thermal resistance.

The device operates across –55°C to +150°C junction temperature range with stable V_GS(TH) (1.4V typ.) and R_DS(ON) variation ≤2.6mΩ up to +125°C at V_GS = 10V. Body diode recovery (t_RR = 28.7ns, Q_RR = 45.8nC) supports synchronous rectification in buck converters.

Key Specifications

Pinout & Package

Package: PowerDI3333-8 - 3.3mm × 3.3mm surface-mount package with exposed drain pad for enhanced thermal dissipation and 0.008g mass.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel power MOSFET applications.

Compared with DMT32M5LFG-7, the -13 variant offers identical performance in larger reels, while DMTH3010LPS-13 trades 33% board area increase for slightly relaxed thermal constraints-making the DMT32M5LFG-7 optimal for space-constrained, high-frequency DC-DC designs requiring minimal conduction loss.

Availability

DMT32M5LFG-7 is available at Aetrix Electronics and suitable for high-efficiency DC-DC converters, automotive LED backlighting, and industrial motor drive half-bridges requiring stable component supply and validated avalanche ruggedness.

Supply support for DMT32M5LFG-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.

This device belongs to Diodes' PowerMOS™ portfolio, engineered specifically for high-current, high-efficiency power conversion in computing, automotive, and industrial applications where low R_DS(ON), fast switching, and compact packaging are essential.

FAQ

What is the maximum safe operating junction temperature for DMT32M5LFG-7?

The absolute maximum junction temperature is +150°C, and the device is characterized for stable R_DS(ON) and V_GS(TH) performance up to this limit. Thermal design must ensure steady-state T_J remains below 150°C under worst-case ambient and power dissipation conditions, using the specified R_θJC = 2.5°C/W and R_θJA = 54°C/W values.

Can DMT32M5LFG-7 be used with 5V gate drive in a synchronous buck converter?

Yes - at V_GS = 4.5V, R_DS(ON) is guaranteed ≤2.8mΩ, supporting efficient operation with standard 5V logic-level gate drivers. The gate threshold voltage (V_GS(TH) = 1.4V typ.) ensures strong turn-on even with marginal gate drive margins, and Q_g = 34nC at 4.5V enables fast switching with low driver power consumption.

How does the PowerDI3333-8 package compare thermally to SO-8 for this MOSFET?

PowerDI3333-8 delivers 2.5°C/W R_θJC versus ~3.5°C/W typical for SO-8, due to its exposed drain pad directly soldered to PCB copper. On standard FR-4 (2oz Cu), its R_θJA is 54°C/W - 20% lower than SO-8 equivalents - enabling higher current handling in same board area without added heatsinking or airflow.

Is DMT32M5LFG-7 qualified for automotive applications per AEC-Q101?

No - while the device is 100% UIS rated and built in IATF 16949-certified facilities, it is not formally AEC-Q101 qualified. Diodes offers automotive-grade variants (e.g., DMT32M5LFGQ-7) with full AEC-Q101 qualification, PPAP documentation, and extended temperature screening; consult Diodes' automotive product line for qualified alternatives.