Infineon Technologies IPD20N03L G

Overview

IPD20N03L G from Infineon Technologies is an N-channel logic-level power MOSFET in PG-TO252-3 package, rated for 30 V V_DS, 30 A continuous drain current at T_C = 25°C, and 20 mΩ R_DS(on) at V_GS = 10 V. It features 175°C maximum junction temperature, dv/dt ruggedness (6 kV/µs), and optimized gate charge × R_DS(on) figure-of-merit (175 nC·mΩ) for high-efficiency buck converter primary-side switching.

For engineers reviewing the IPD20N03L G datasheet, IPD20N03L G pinout, IPD20N03L G application, or IPD20N03L G equivalent, key selection criteria include logic-level gate drive compatibility (V_GS(th) = 1.2–2.0 V), low R_DS(on) at 4.5 V (23–31 mΩ), avalanche energy rating (15 mJ), thermal resistance (R_thJC = 3.6 K/W), and TO252-3 footprint suitability for high-current SMD layouts.

Technical Context

This MOSFET is engineered for synchronous and non-synchronous buck converters operating at high switching frequencies (up to several hundred kHz), where fast turn-on (t_d(on) = 6.2–9.3 ns) and turn-off (t_d(off) = 23–34 ns) reduce conduction and switching losses. Its integrated body diode supports freewheeling with t_rr = 26–32 ns and Q_rr = 13–16 nC, minimizing reverse recovery loss.

The device uses Infineon's OptiMOS™ trench technology to achieve low gate charge (Q_g = 15–19 nC) and excellent capacitance ratio (C_iss/C_oss ≈ 2.4), enabling stable operation under hard-switching conditions and reducing EMI generation in DC-DC regulators.

Key Specifications

Pinout & Package

IPD20N03L G is housed in a surface-mount PG-TO252-3 (DPAK) package with exposed drain pad for thermal dissipation. The package conforms to JEDEC MO-247 and supports solder reflow per IPC-J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STL220N3LLH6 and IRLZ44NPBF, IPD20N03L G offers optimal balance of logic-level drive, TO252-3 manufacturability, and 30 V/30 A capability - making it ideal for cost-sensitive, high-volume buck converters where PCB thermal design leverages its 3.6 K/W R_thJC.

Availability

IPD20N03L G is available at Aetrix Electronics and suitable for industrial DC-DC converters, motor control modules, and USB-C power delivery systems requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.

Supply support for IPD20N03L 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 electronics, and industrial control ICs and discrete devices.

The OptiMOS™ Buck Converter series targets high-frequency, high-efficiency DC-DC conversion in space- and thermally-constrained applications, emphasizing low R_DS(on), fast switching, and ruggedness in consumer, industrial, and automotive power supplies.

FAQ

Is IPD20N03L G suitable for 3.3 V microcontroller gate drive?

Yes. With V_GS(th) ranging from 1.2 V to 2.0 V and guaranteed R_DS(on) of 23–31 mΩ at V_GS = 4.5 V, IPD20N03L G fully enhances using standard 3.3 V GPIO outputs. No level shifter is required, though a small series gate resistor (10–47 Ω) is recommended to dampen ringing.

What is the maximum continuous current at 100°C case temperature?

Per the datasheet, the continuous drain current is derated to 25 A at T_C = 100°C. This reflects thermal limitation due to junction-to-case resistance (3.6 K/W) and ambient thermal environment - not a device failure threshold, but the maximum sustainable DC current under those thermal conditions.

Does IPD20N03L G have avalanche capability, and how is it specified?

Yes. It is rated for single-pulse avalanche energy E_AS = 15 mJ under test conditions of I_D = 15 A, V_DD = 25 V, and R_GS = 25 Ω. This rating ensures robustness against inductive kickback in buck converter freewheeling paths and short-circuit events without requiring external clamping.

Can IPD20N03L G replace older TO-220 MOSFETs in existing designs?

No direct drop-in replacement: IPD20N03L G uses PG-TO252-3 (DPAK), not TO-220. Pinout differs (G-S-D vs. G-D-S), and thermal interface relies on PCB copper, not external heatsinks. Layout redesign and thermal validation are required - but benefits include smaller footprint, lower inductance, and improved manufacturability.