Infineon Technologies IRF7509TRPBF

Overview

IRF7509TRPBF from Infineon Technologies (formerly International Rectifier) is a dual-channel complementary MOSFET in Micro8 package, integrating one 30 V N-channel and one −30 V P-channel HEXFET device with R_DS(on) of 0.07 Ω (N) and 0.12 Ω (P) at V_GS = 10 V, rated for 2.7 A/−2.0 A continuous drain current at 25°C, used in compact DC-DC converters and H-bridge motor drivers.

For engineers reviewing the IRF7509TRPBF datasheet, IRF7509TRPBF pinout, IRF7509TRPBF application, or IRF7509TRPBF equivalent, key selection criteria include dual-channel complementary conduction capability, low-profile (<1.1 mm) Micro8 footprint, thermal resistance of 100 °C/W, and gate threshold compatibility with 3.3 V and 5 V logic-level drive.

Technical Context

The IRF7509TRPBF implements a monolithic dual-die structure in a single Micro8 leadframe package, enabling synchronous half-bridge operation without external pairing. Its N-channel and P-channel devices share common-source configuration with independent gate terminals, supporting bidirectional switching control in buck regulators and load switches.

Each channel features optimized body diode recovery (dv/dt = 5.0 V/ns), specified for pulsed drain currents up to 21 A (N) and −16 A (P), and operates across −55 °C to +150 °C junction temperature range with ±20 V gate voltage rating and 30 V single-pulse gate-source withstand capability.

Key Specifications

Pinout & Package

IRF7509TRPBF uses the Micro8 surface-mount package (3.05 × 4.24 mm footprint, 1.11 mm max height), offering 50% smaller area than standard SO-8 while maintaining compatible pad layout for automated assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual complementary MOSFET applications.

Compared with Si7851DP-T1-GE3 and DMN601DWK-7, the IRF7509TRPBF delivers optimal balance of low profile, moderate switching speed, and proven ruggedness in portable power applications-making it preferred where height constraint and reliability under thermal cycling are primary design drivers.

Availability

IRF7509TRPBF is available at Aetrix Electronics and suitable for battery-powered motor control, USB-C power delivery switching, and compact DC-DC buck converter designs requiring stable component supply and long-term production continuity.

Supply support for IRF7509TRPBF 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 acquired International Rectifier in 2015 and continues its legacy of high-performance power semiconductors with rigorous AEC-Q101 qualification and industrial-grade reliability testing.

The IRF7509TRPBF belongs to the HEXFET Generation V family, engineered specifically for space-constrained, high-efficiency DC-DC conversion and bidirectional load switching in portable and embedded systems.

FAQ

What is the maximum safe operating voltage for IRF7509TRPBF gate terminals?

The absolute maximum gate-to-source voltage is ±20 V, with a recommended operating limit of ±12 V for long-term reliability. The device withstands 30 V single-pulse gate stress (tp < 10 µs) per datasheet Figure 9 test conditions, but sustained operation above ±12 V accelerates gate oxide degradation and increases leakage current beyond specification limits.

Can IRF7509TRPBF be used in linear regulation mode?

No - IRF7509TRPBF is not characterized or qualified for linear (ohmic) operation. Its Safe Operating Area (SOA) curve (Figure 8) shows operation is limited to pulse widths ≤10 ms at full V_DS, and continuous linear use causes rapid thermal runaway due to positive temperature coefficient of R_DS(on) and insufficient heatsinking in Micro8 package.

Is the common source connection (pins 2 and 3) internally bonded or externally tied?

Pins 2 (S1) and 3 (S2) are internally bonded to a single metal layer and electrically shorted within the package - they must be connected to the same net on PCB. Datasheet Figure "Top View" and "Lead Assignments" confirm this shared source node; splitting these pins violates the device's structural design and risks latch-up or asymmetric current sharing.

Does IRF7509TRPBF support 3.3 V logic-level gate drive for both channels?

The N-channel turns on fully at V_GS = 4.5 V (R_DS(on) = 0.095 Ω), and the P-channel achieves R_DS(on) = 0.16 Ω at V_GS = −4.5 V. With typical 3.3 V GPIO, the N-channel operates in enhanced mode but with elevated R_DS(on) (~0.13 Ω); the P-channel requires external level shifting or charge pump to achieve adequate enhancement.