Infineon Technologies IQD005N04NM6ATMA1

Overview

IQD005N04NM6ATMA1 from Infineon Technologies is an N-channel enhancement-mode MOSFET optimized for high-current synchronous rectification in 40 V DC-DC converters. It delivers 610 A continuous drain current at TC = 25 °C, 0.47 mΩ max RDS(on) at VGS = 10 V, and features integrated body diode with 290 A continuous forward current - deployed in server VRMs and GPU power stages.

For engineers reviewing the IQD005N04NM6ATMA1 datasheet, IQD005N04NM6ATMA1 pinout, IQD005N04NM6ATMA1 application, or IQD005N04NM6ATMA1 equivalent, key selection criteria include low RDS(on) thermal stability across -55 to 175 °C junction range, 100% avalanche-tested ruggedness, and PG-TSON-8 package compatibility with high-density PCB layouts in multi-phase buck converters.

Technical Context

This OptiMOSTM 6 device uses trench-gate superjunction architecture to achieve ultra-low on-resistance while maintaining fast switching (td(on) = 15 ns, tf = 9 ns) and low gate charge (Qg = 130 nC). Its 0.45 °C/W junction-to-case thermal resistance enables high-power operation with minimal heatsinking when mounted on 6 cm² copper area.

The integrated body diode supports synchronous FET operation with trr = 29–58 ns (IF = 50 A, diF/dt = 1000 A/µs) and Qrr = 221–442 nC, minimizing reverse recovery losses in high-frequency (>500 kHz) converter topologies.

Key Specifications

Pinout & Package

PG-TSON-8 (Power Thin Small Outline No-lead) package with exposed drain pad (pins 5–8) for thermal and electrical connection, gate on pin 4, and source on pins 1–3. Internally integrated body diode anode connects to source, cathode to drain.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current 40 V MOSFET applications.

Compared with IPB007N04LG and IRLHS6342TRPBF, IQD005N04NM6ATMA1 provides the lowest RDS(on) and best thermal resistance among 40 V TSON-8 MOSFETs, making it optimal for thermally limited, high-efficiency server and AI hardware power stages - though its higher Qg demands careful gate driver sizing.

Availability

IQD005N04NM6ATMA1 is available at Aetrix Electronics and suitable for server VRMs, GPU power delivery, industrial motor drives, and telecom 48 V intermediate bus converters requiring stable component supply and long-term production continuity.

Supply support for IQD005N04NM6ATMA1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs and discrete devices.

This part belongs to the OptiMOSTM 6 family - engineered specifically for high-efficiency, high-current DC-DC conversion in datacenter, AI accelerator, and industrial power systems where low RDS(on), ruggedness, and thermal performance are critical.

FAQ

What is the maximum junction temperature and how does it affect derating?

The IQD005N04NM6ATMA1 has a maximum junction temperature of 175 °C. At TC = 100 °C, its continuous drain current derates to 431 A (VGS = 10 V), and at TC = 150 °C, it further drops to 402 A. Derating follows the curve in Diagram 2 of the datasheet - users must calculate actual case temperature using RthJC = 0.45 °C/W and ambient conditions to ensure safe operation.

Is this MOSFET suitable for synchronous rectification in a 500 kHz buck converter?

Yes. With td(on) = 15 ns, tf = 9 ns, Qg = 130 nC, and Qrr = 221–442 nC, the IQD005N04NM6ATMA1 supports clean switching at 500 kHz. Its low Crss (69–120 pF) minimizes Miller-induced turn-on risk, and the integrated body diode's fast trr (29–58 ns) enables efficient zero-voltage switching when paired with appropriate dead-time control.

How does the PG-TSON-8 package compare to traditional SO-8 in thermal performance?

The PG-TSON-8 exposes the drain pad on the bottom surface, achieving RthJC = 0.45 °C/W - nearly 2× better than typical SO-8 packages (~0.8–1.0 °C/W). This allows direct thermal transfer to the PCB, eliminating need for external heatsinks in many high-current applications. The leadless design also reduces parasitic inductance, improving EMI behavior in fast-switching circuits.

Does the device require gate resistors for stability, and what value is recommended?

A gate resistor is required to dampen ringing and control dV/dt. Based on the datasheet's switching test condition (RG,ext = 1.6 Ω), a 1.5–2.2 Ω non-inductive resistor is recommended for 50 A–600 A applications. Lower values increase switching speed but risk overshoot; higher values reduce EMI but raise switching losses - optimal value depends on driver strength and layout parasitics.