STMicroelectronics STL20DNF06LAG

Overview

STL20DNF06LAG from STMicroelectronics is an automotive-grade dual N-channel Power MOSFET with 60 V V_DS, 27 mΩ typ. R_DS(on) at V_GS = 10 V, 20 A continuous drain current, and 75 W total power dissipation in a PowerFLAT™ 5x6 double island package. It serves as a high-efficiency primary switch in isolated DC-DC converters for telecom and computing systems.

For engineers reviewing the STL20DNF06LAG datasheet, STL20DNF06LAG pinout, STL20DNF06LAG application, or STL20DNF06LAG equivalent, key selection criteria include its AEC-Q101 qualification, logic-level gate threshold (1–2.5 V), wettable flanks for automated optical inspection, and low gate charge (22.5 nC) enabling fast switching with reduced drive loss.

Technical Context

This dual-channel MOSFET integrates two independent N-channel devices in a single PowerFLAT™ 5x6 double island package with thermally enhanced copper islands and wettable flanks. Each channel supports 60 V breakdown voltage, 20 A continuous current at T_case = 25 °C, and operates up to 175 °C junction temperature.

Its STripFET™ II process minimizes input capacitance (C_iss = 670 pF) and reverse transfer capacitance (C_rss = 56 pF), while delivering fast switching: t_d(on) = 7 ns, t_r = 15.4 ns, t_d(off) = 36.8 ns, and t_f = 7.7 ns under standard test conditions (V_DD = 30 V, I_D = 3.7 A, R_G = 4.7 Ω).

Key Specifications

Pinout & Package

The STL20DNF06LAG uses a PowerFLAT™ 5x6 double island package with exposed source terminals on both islands and a common drain pad. The package features wettable flanks for solder joint inspection and optimized thermal path to PCB.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual N-channel 60 V Power MOSFET applications.

Compared with BSC020N06NS3 and NTMFD4829, STL20DNF06LAG uniquely balances dual-channel integration, AEC-Q101 compliance, and 27 mΩ conduction performance in a wettable-flank package-making it optimal for space-constrained automotive and telecom power stages where channel independence and thermal reliability are prioritized over absolute minimum R_DS(on).

Availability

STL20DNF06LAG is available at Aetrix Electronics and suitable for automotive body control modules, telecom isolated DC-DC converters, and industrial motor drive inverters requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for STL20DNF06LAG 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.

The STL20DNF06LAG belongs to ST's STripFET™ II Power MOSFET product line, engineered specifically for high-frequency, high-efficiency switching in automotive and telecom power conversion where low gate charge, thermal robustness, and AEC-Q101 compliance are mandatory.

FAQ

What is the maximum continuous drain current for STL20DNF06LAG at 100 °C case temperature?

The maximum continuous drain current is 20 A at T_case = 25 °C and remains 20 A at T_case = 100 °C, as specified in Table 2 of the datasheet. This reflects current limiting by package construction rather than thermal derating, enabled by the low R_thj-case of 2.0 °C/W and robust copper island design.

Does STL20DNF06LAG support logic-level gate drive?

Yes. Its gate threshold voltage V_GS(th) is specified from 1 V to 2.5 V at I_D = 250 µA, and it achieves full enhancement with V_GS = 5 V (R_DS(on) = 32–50 mΩ). This allows direct drive from 3.3 V or 5 V microcontrollers without external level shifters.

How does the PowerFLAT™ 5x6 double island package improve thermal performance?

The double island structure provides two separate exposed source copper pads that serve as independent thermal and electrical return paths. Combined with the large central drain pad, this reduces effective R_thj-pcb to 31.3 °C/W on a 1-inch² FR-4 board and enables >70% of heat to be conducted directly into the PCB, significantly outperforming SO-8 equivalents.

Is STL20DNF06LAG suitable for synchronous rectification in secondary-side applications?

No. As a 60 V-rated N-channel MOSFET with a common drain configuration, it is designed for primary-side switching in step-down or isolated topologies-not secondary-side synchronous rectification, which typically requires lower V_DS (≤30 V), dedicated source-drain diode optimization, and often P-channel or logic-level N-channel with independent source pins.