Infineon Technologies BSZ0589NSATMA1

Overview

BSZ0589NSATMA1 from Infineon Technologies is an N-channel OptiMOS™ 5 Power-MOSFET rated for 30 V drain-source voltage, 4.4 mΩ R_DS(on) at V_GS = 4.5 V, and 17 A continuous drain current. It features ultra-low gate charge (Q_G = 5.2 nC) and output charge (Q_OSS = 7.2 nC), optimized for high-frequency switching in wireless charging transmitters and synchronous buck converters.

For engineers reviewing the BSZ0589NSATMA1 datasheet, BSZ0589NSATMA1 pinout, BSZ0589NSATMA1 application, or BSZ0589NSATMA1 equivalent, key selection criteria include its FOM_QOSS and FOM_SW performance, JEDEC-qualified thermal robustness, 100% avalanche testing, and TSDSON-8 FL package compatibility with high-density PCB layouts.

Technical Context

This MOSFET employs a trench-based silicon process to achieve low R_DS(on) × Q_G figure-of-merit (FOM), enabling efficient operation above 1 MHz in resonant and hard-switched topologies. Its gate threshold voltage (V_GS(th) = 1.2–2.0 V) supports direct drive from 3.3 V and 4.5 V controllers without level-shifting.

The device integrates a fast, low-V_SD body diode (V_SD = 0.71 V typ. at 2.1 A) with Q_rr = 10 nC, making it suitable for synchronous rectification and bidirectional power flow in USB PD and Qi-compliant chargers.

Key Specifications

Pinout & Package

BSZ0589NSATMA1 is housed in a thermally enhanced TSDSON-8 FL (S3O8) leadless package with exposed drain pad for optimal heat transfer. The 3.3 mm × 3.3 mm footprint supports high-current routing and automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IPB058N04LG and SIJN300DP-T1-GE3, BSZ0589NSATMA1 delivers the best balance of low-voltage gate drive capability, ultra-low Q_OSS, and JEDEC-qualified thermal performance-making it optimal for space-constrained, high-frequency wireless and USB PD designs where both conduction and switching losses must be minimized.

Availability

BSZ0589NSATMA1 is available at Aetrix Electronics and suitable for wireless charging transmitters, USB PD synchronous rectifiers, and high-frequency buck converters requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for BSZ0589NSATMA1 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 ICs, and industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949 standards.

BSZ0589NSATMA1 belongs to the OptiMOS™ 5 family, engineered specifically for high-efficiency, high-frequency power conversion in consumer wireless charging, USB-C PD adapters, and compact DC/DC modules where low R_DS(on) × Q_G FOM is essential.

FAQ

What is the maximum recommended gate drive voltage for BSZ0589NSATMA1?

The absolute maximum gate-source voltage is ±20 V, but the device is characterized and optimized for 4.5 V and 10 V gate drive. Operation at 12 V is permissible but provides diminishing returns in R_DS(on) reduction while increasing gate oxide stress risk over lifetime. For 3.3 V microcontroller interfaces, external level-shifting is not required due to its 1.2–2.0 V V_GS(th) range.

Does BSZ0589NSATMA1 require a gate resistor for EMI control?

Yes-a 1–5 Ω gate resistor is recommended to dampen high-frequency ringing caused by stray inductance in the gate loop. The device's low intrinsic gate resistance (1.0–1.7 Ω) makes it especially sensitive to PCB layout parasitics; a 2.2 Ω surface-mount resistor placed adjacent to the gate pin reduces peak dV/dt and improves EMI compliance in Class B conducted emissions tests.

Can BSZ0589NSATMA1 be used in paralleled configurations?

Yes-its positive temperature coefficient of R_DS(on) (increasing ~0.6%/°C) ensures inherent current sharing stability. Parallel operation requires matched gate drive paths, symmetrical PCB copper pours, and identical thermal mounting to avoid thermal runaway. Up to four devices have been validated in 65 W wireless charging reference designs with <5% current imbalance at full load.

Is the exposed drain pad electrically isolated from the PCB ground plane?

No-the exposed drain pad is internally connected to all D1–D4 pins and must be soldered to a dedicated, non-grounded copper pour sized per Infineon's layout guidelines (minimum 6 cm²). This pad serves as the primary thermal path and high-current drain node; connecting it to system ground would short the drain to ground and destroy the device.