Infineon Technologies SPB80N03S2L-03

Overview

SPB80N03S2L-03 from Infineon Technologies is an N-channel logic-level enhancement-mode MOSFET in TO263-3 (D²PAK) package, rated for 30 V V_DS, 80 A continuous drain current at T_C = 25 °C, and 2.8 mΩ typical R_DS(on) at V_GS = 10 V. It features 175 °C maximum junction temperature, avalanche rating (E_AS = 810 mJ), and dv/dt ruggedness (6 kV/µs), enabling use in high-current DC-DC synchronous rectification and motor drive half-bridges.

For engineers reviewing the SPB80N03S2L-03 datasheet, SPB80N03S2L-03 pinout, SPB80N03S2L-03 application, or SPB80N03S2L-03 equivalent, key selection criteria include R_DS(on) at 4.5 V gate drive, thermal resistance (R_thJC = 0.3–0.5 K/W), reverse diode forward voltage (V_SD = 1.0–1.3 V), gate charge (Q_g = 166–220 nC), and SOA robustness under repetitive switching stress.

Technical Context

This OptiMOS™ power transistor uses trench-gate silicon technology optimized for low gate charge × R_DS(on) figure-of-merit (FOM), supporting high-efficiency operation in 12 V and 24 V systems. Its logic-level gate threshold (V_GS(th) = 1.2–2.0 V) ensures full enhancement with standard microcontroller I/O, while its 175 °C rated junction enables compact heatsink designs in thermally constrained environments.

The device integrates a fast, soft-recovery body diode (t_rr = 65–80 ns, Q_rr = 87–108 nC) and exhibits stable R_DS(on) over temperature (2.3–3.5 mΩ across –60 to +175 °C at 80 A), making it suitable for hard-switched and synchronous rectifier topologies where conduction loss and switching loss trade-offs are critical.

Key Specifications

Pinout & Package

SPB80N03S2L-03 is housed in a surface-mount TO263-3 (D²PAK) package with exposed drain pad for thermal and electrical connection. The package has three terminals: Gate (G), Drain (D), and Source (S), with Drain electrically connected to the large metal tab on the bottom side.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STL220N3LLH6 and IRF8721PbF, SPB80N03S2L-03 delivers superior thermal headroom (175 °C), verified avalanche capability (810 mJ), and system-level dv/dt immunity-critical for automotive, industrial motor, and high-reliability power conversion where transient robustness cannot be compromised.

Availability

SPB80N03S2L-03 is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial motor drives, and energy storage system (ESS) BMS switches requiring stable component supply and long-term lifecycle support.

Supply support for SPB80N03S2L-03 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and security solutions, with global manufacturing and R&D infrastructure.

This device belongs to the OptiMOS™ 30 V product line, engineered specifically for high-current, high-efficiency switching in 12 V/24 V/48 V automotive and industrial power systems where low R_DS(on), logic-level drive, and ruggedness are mandatory.

FAQ

What is the maximum continuous drain current for SPB80N03S2L-03 at 100 °C case temperature?

At T_C = 100 °C, the maximum continuous drain current is derated to approximately 52 A, based on the ID = f(T_C) curve (Page 4, Figure 2) and thermal resistance R_thJC = 0.5 K/W. This reflects linear derating from 80 A at 25 °C to zero at ~160 °C, ensuring safe operation within SOA limits under sustained thermal load.

Does SPB80N03S2L-03 support gate drive from a 3.3 V microcontroller without external boosting?

Yes. With V_GS(th) = 1.2–2.0 V and R_DS(on) = 3.5 mΩ max at V_GS = 4.5 V, the device achieves full enhancement using standard 3.3 V GPIO outputs. However, gate drive strength must deliver ≥1 A peak current to charge Q_g = 166–220 nC within required switching times, necessitating low-impedance driver stages.

How does the body diode performance compare to discrete Schottky alternatives in synchronous rectification?

The integrated body diode has V_SD = 1.0–1.3 V at 80 A and t_rr = 65–80 ns, offering lower forward drop than most 30 V Schottkys (typically 0.45–0.55 V) but higher than ideal. Its advantage lies in co-packaged integration, eliminating layout parasitics and enabling precise timing control-critical for ZVS/ZCS schemes where diode recovery must be tightly synchronized with gate transitions.

Is SPB80N03S2L-03 qualified for automotive AEC-Q101 standards?

Yes. As part of Infineon's OptiMOS™ automotive-grade portfolio, SPB80N03S2L-03 is AEC-Q101 qualified per the manufacturer's official documentation and product briefs. This includes stress testing for temperature cycling, humidity, HTRB, and ESD, confirming suitability for under-hood and safety-critical vehicle subsystems.