Infineon Technologies IRF6712STRPBF

Overview

IRF6712STRPBF from Infineon Technologies is a 25 V, 17 A N-channel DirectFET™ Power MOSFET in a low-profile SQ package (4.8 × 3.8 × 0.7 mm), optimized for synchronous buck converters in CPU core power delivery. It delivers 3.8 mΩ R_DS(on) @ 10 V, 12 nC total gate charge, and ultra-low package inductance to minimize conduction and switching losses in high-frequency DC-DC applications.

For engineers reviewing the IRF6712STRPBF datasheet, IRF6712STRPBF pinout, IRF6712STRPBF application, or IRF6712STRPBF equivalent, key selection criteria include R_DS(on) at 4.5 V (6.7 mΩ), thermal resistance R_θJC = 3.5 °C/W, dual-sided cooling capability, and compatibility with standard SMT reflow profiles per AN-1035.

Technical Context

This MOSFET employs HEXFET® silicon on a DirectFET SQ substrate, enabling symmetric top/bottom thermal paths and reducing junction-to-case thermal resistance by 80% versus conventional SO-8 packages. Its gate threshold voltage (1.9 V typ) and low Q_gd/Q_gs2 ratio support fast, controlled turn-on in high-side and low-side synchronous rectifier roles.

The device is characterized for 12 V bus operation with pulse conditions (t_p ≤ 400 μs, duty ≤ 2%) and specified for TJ = −40°C to +150°C. Body diode parameters-V_SD = 0.81 V @ 13 A, t_rr = 17 ns-are validated for hard-switched and synchronous rectification use cases.

Key Specifications

Pinout & Package

IRF6712STRPBF uses the DirectFET SQ (Small Can, Q-designation) package: 4.8 mm × 3.8 mm footprint, 0.7 mm profile, top-side drain (D), bottom-side source (S), and side-mounted gate (G). Dual-sided cooling is enabled via exposed metal pads on both top and bottom surfaces.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRF6662TRPBF and SiR626DP-T1-GE3, IRF6712STRPBF offers the lowest combined conduction-switching loss product (R_DS(on) × Q_g) and unique dual-sided cooling-critical for space-constrained, high-power-density CPU/GPU VRMs where thermal headroom is <15°C.

Availability

IRF6712STRPBF is available at Aetrix Electronics and suitable for CPU core voltage regulators, GPU power delivery systems, and AI accelerator board power stages requiring stable component supply, tight parametric consistency, and long-term industrial lifecycle support.

Supply support for IRF6712STRPBF 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 leader specializing in power management, automotive, and industrial control ICs and discrete devices, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

The DirectFET™ product line was engineered specifically for high-frequency, high-current DC-DC conversion in computing and communications infrastructure-prioritizing thermal performance, package inductance reduction, and SMT manufacturability over legacy leaded packages.

FAQ

What is the maximum continuous drain current at 70°C ambient temperature?

The IRF6712STRPBF supports 13 A continuous drain current at T_A = 70°C with proper PCB copper area (1 in² Cu board) and still-air convection. This rating assumes no additional heatsinking beyond the PCB and accounts for derating due to increased R_DS(on) at elevated temperature and reduced thermal dissipation capacity.

Is the IRF6712STRPBF suitable for avalanche energy handling in unclamped inductive switching?

Yes-it is rated for 50 mJ single-pulse avalanche energy (E_AS) at I_AS = 13 A and T_J = 25°C. The device's rugged body diode and optimized silicon structure allow reliable operation in circuits with moderate inductive kickback, such as motor gate drivers or non-synchronous flyback snubbers, provided peak V_DS remains below 25 V.

How does the DirectFET SQ package differ from standard SO-8 in thermal performance?

The DirectFET SQ package achieves 80% lower junction-to-case thermal resistance (R_θJC = 3.5 °C/W vs. ~18 °C/W for SO-8) by eliminating bond wires and using top- and bottom-side metal pads for direct thermal contact. This enables dual-sided cooling-unlike SO-8-which is essential for maintaining T_J < 125°C in high-power density VRMs.

Can the IRF6712STRPBF be used as a control-FET in a high-side configuration?

Yes-it is qualified for control-FET use with gate drive voltages ≥4.5 V. Its 1.9 V typical V_GS(th) and low Q_gd ensure robust turn-on margin and immunity to Miller-induced false triggering. However, external bootstrap circuitry or isolated gate drive is required for high-side operation above 12 V bus, as it lacks integrated level-shifting.