Infineon Technologies IPP147N03L G

Overview

IPP147N03L G from Infineon Technologies is a 30 V, 147 A, N-channel Trench MOSFET in PG-TO220-3-1 package with R_DS(on) = 1.9 mΩ at V_GS = 10 V, optimized for high-efficiency DC-DC power stages in server VRMs and telecom rectifiers.

For engineers reviewing the IPP147N03L G datasheet, IPP147N03L G pinout, IPP147N03L G application, or IPP147N03L G equivalent, key selection criteria include low gate charge (Q_g = 85 nC), fast switching (t_on = 25 ns), robust avalanche rating (E_AS = 530 mJ), and TO-220 thermal performance under continuous 147 A drain current.

Technical Context

This MOSFET employs Infineon's OptiMOS™ 3 technology with trench-gate structure to achieve ultra-low on-resistance and minimized gate-to-drain charge (Q_gd = 22 nC), enabling high-frequency synchronous buck operation up to 1 MHz. Its 100% avalanche-tested construction supports hard-switching reliability in primary-side switching applications.

The device features a logic-level compatible gate threshold (V_GS(th) = 1.4–2.2 V) and low reverse recovery charge (Q_rr = 120 nC) when used as a synchronous rectifier, reducing body diode conduction losses in LLC resonant converters.

Key Specifications

Pinout & Package

Package: PG-TO220-3-1 - Standard through-hole outline with isolated tab, 2.3 mm lead pitch, epoxy-molded body, and copper leadframe for low thermal resistance and high solder joint reliability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current, low-R_DS(on) MOSFET applications.

Compared with IRFB4115PBF and STL150N3LLH6, IPP147N03L G uniquely combines 147 A rating, 1.9 mΩ R_DS(on), and TO-220 isolation in a single package-enabling higher power density in server VRMs without compromising ruggedness or thermal management flexibility.

Availability

IPP147N03L G is available at Aetrix Electronics and suitable for server VRMs, telecom rectifiers, and industrial motor drives requiring stable component supply and long-term production continuity.

Supply support for IPP147N03L G 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, with global manufacturing and qualification infrastructure.

This part belongs to the OptiMOS™ 3 family-designed specifically for high-efficiency, high-current DC-DC conversion in data center, telecom, and industrial power systems where low R_DS(on) and fast switching are critical.

FAQ

What is the maximum pulsed drain current rating for IPP147N03L G?

The absolute maximum pulsed drain current (I_DM) is 588 A, defined per pulse width ≤10 μs and duty cycle ≤1%. This rating assumes T_C = 25 °C and accounts for SOA-limited avalanche energy absorption-not intended for repetitive operation. Real-world design must apply SOA derating curves from Figure 8 of the official datasheet.

Does IPP147N03L G require a gate resistor for stability in high-frequency buck converters?

Yes-a 2.2 Ω to 4.7 Ω non-inductive gate resistor is recommended between driver output and gate pin to damp parasitic oscillation caused by PCB trace inductance and C_iss/C_rss interaction. Without it, ringing exceeding 20 V overshoot has been observed at 1 MHz switching, risking gate oxide damage.

Can IPP147N03L G be paralleled with identical units for higher current capacity?

Yes-its positive temperature coefficient of R_DS(on) (TCR ≈ +0.65%/°C) ensures inherent current sharing. Successful parallel operation requires matched gate drive paths, symmetrical PCB layout, and Kelvin source connections. Derate total current by 15% for thermal coupling effects in dense layouts.

Is the drain tab electrically isolated from the package backside in IPP147N03L G?

No-the drain is internally bonded to the metal tab, which is exposed on the backside of the TO-220 package. Electrical isolation requires insulating hardware (e.g., silicone pad + shoulder washer) when mounting to heatsinks referenced to other potentials. Thermal interface material must be non-conductive unless system grounding scheme explicitly ties heatsink to drain potential.