Infineon Technologies IRL5602STRL

Overview

IRL5602STRL from International Rectifier is a P-channel enhancement-mode HEXFET® Power MOSFET in D2Pak (TO-263AB) package, rated for -20 V V(BR)DSS, 0.042 Ω RDS(on) at VGS = -4.5 V and ID = -12 A, with -24 A continuous drain current at TC = 25°C. It features fully avalanche-rated operation, 175°C maximum junction temperature, and fast switching for high-efficiency DC-DC conversion and load switching.

For engineers reviewing the IRL5602STRL datasheet, IRL5602STRL pinout, IRL5602STRL application, or IRL5602STRL equivalent, key selection criteria include its logic-level gate drive compatibility (VGS(th) = -0.7 to -1.0 V), low RDS(on) at -4.5 V, rugged unclamped inductive switching capability (EAS = 290 mJ), and thermal performance (RθJC = 2.0 °C/W) in surface-mount high-power designs.

Technical Context

This P-channel MOSFET operates as a high-side load switch or synchronous rectifier in buck converters and hot-swap circuits. Its negative threshold voltage enables direct interface with 3.3 V/5 V logic controllers, while its low gate charge (Qg = 44 nC) and fast switching (tr = 73 ns, tf = 84 ns) support high-frequency operation up to several hundred kHz.

The device integrates a robust body diode with reverse recovery time trr = 58–88 ns and Qrr = 54–81 nC at IF = -12 A, supporting bidirectional current handling in bridge configurations. Its SOA curve is defined by RDS(on)-limited conduction and avalanche-limited pulse operation, validated per JEDEC JESD24-1.

Key Specifications

Pinout & Package

D2Pak (TO-263AB) surface-mount package with exposed drain tab for thermal and electrical connection; 3-pin configuration optimized for high-current PCB routing and thermal management.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRL5602STRL, the IRLR7843PbF offers superior conduction efficiency in 24 V systems but requires more gate drive current, while the SI7157DP-T1-GE3 trades thermal capability for board area-making IRL5602STRL optimal for 12 V, medium-power, thermally demanding designs.

Availability

IRL5602STRL is available at Aetrix Electronics and suitable for automotive load switching, industrial DC-DC conversion, and server VRM high-side switching requiring stable component supply and long-term production continuity.

Supply support for IRL5602STRL 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

International Rectifier (now part of Infineon Technologies since 2015) was a pioneer in power semiconductor design, specializing in high-efficiency MOSFETs, IGBTs, and driver ICs for industrial, automotive, and computing markets.

The IRL5602STRL belongs to the fifth-generation HEXFET® logic-level P-channel MOSFET product line, engineered specifically for high-current, low-voltage switching in thermally constrained surface-mount applications where gate drive simplicity and avalanche ruggedness are critical.

FAQ

What is the maximum continuous drain current for IRL5602STRL at 100°C case temperature?

The maximum continuous drain current is -17 A at TC = 100°C and VGS = -4.5 V, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limitations of the D2Pak package and must be applied when heatsinking is insufficient to maintain TC ≤ 25°C under full load.

Can IRL5602STRL be used in synchronous rectification without external gate driving circuitry?

No-IRL5602STRL requires active gate control. Its gate threshold is -0.7 to -1.0 V, but it lacks integrated gate driver or self-driven capability. For synchronous rectification, it must be paired with a dedicated gate driver IC or transformer-coupled timing circuit to ensure proper turn-on/turn-off sequencing relative to the primary switch.

Is the body diode of IRL5602STRL suitable for freewheeling in buck converters?

Yes-the body diode has a forward voltage of -1.4 V at IS = -12 A and TJ = 25°C, with trr = 58–88 ns and Qrr = 54–81 nC. These parameters support freewheeling in low-to-moderate frequency buck converters (<300 kHz), though external Schottky diodes may be preferred for ultra-high efficiency at higher frequencies due to lower VSD and Qrr.

Does IRL5602STRL meet RoHS and lead-free soldering requirements?

Yes-IRL5602STRL is manufactured in compliance with RoHS Directive 2011/65/EU and supports lead-free reflow soldering up to 300°C for 10 seconds at 1.6 mm from case, as confirmed in the Absolute Maximum Ratings section. The D2Pak package uses matte tin-plated leads and Pb-free mold compound.