Diodes Incorporated DMP3018SFK-13

Overview

DMP3018SFK-13 from Diodes Incorporated is a P-channel enhancement-mode MOSFET optimized for high-efficiency load switching and DC-DC converter power stages, featuring -30V V(BR)DSS, 14.5mΩ RDS(on) @ VGS = -10V, -10.2A ID at TA = +25°C, ESD-protected gate, and U-DFN2523-6 package. It serves as a low-loss high-side switch in battery-powered portable electronics and industrial power rails.

For engineers reviewing the DMP3018SFK-13 datasheet, DMP3018SFK-13 pinout, DMP3018SFK-13 application, or DMP3018SFK-13 equivalent, key selection criteria include gate threshold voltage (-1.6V typ), thermal resistance (55°C/W with thermal vias), body diode forward voltage (-0.7V typ), avalanche energy rating (104mJ), and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This MOSFET employs a trench-gate silicon process to achieve low RDS(on) while maintaining fast switching via controlled gate charge (Qg = 42.7nC @ VGS = -10V) and low output capacitance (Coss = 390pF @ VDS = -15V). Its negative VGS(th) range (-1 to -3V) enables direct logic-level drive from 3.3V or 5V controllers without level-shifting.

The integrated body diode supports synchronous rectification and reverse-current blocking in buck converters and OR-ing applications. Thermal design leverages the U-DFN2523-6's low RθJC (7.2°C/W) and exposed drain pad for efficient heat transfer to PCB copper planes.

Key Specifications

Pinout & Package

Package: U-DFN2523-6 - ultra-thin, leadless, thermally enhanced 2.5mm × 2.3mm × 0.6mm surface-mount package with exposed drain pad for optimal thermal performance and space-constrained PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar P-channel MOSFET load switching applications.

Compared with DMG3415L-7 and SIR422DP-T1-GE3, DMP3018SFK-13 uniquely balances AEC-Q101 compliance, 2.5mm × 2.3mm footprint, and sub-15mΩ RDS(on) at logic-level drive-making it optimal for space-constrained automotive and portable power systems where reliability and thermal efficiency are co-prioritized.

Availability

DMP3018SFK-13 is available at Aetrix Electronics and suitable for battery protection circuits, USB-C power delivery switches, and industrial 24V DC-DC converters requiring stable component supply across production lifecycles.

Supply support for DMP3018SFK-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, automotive, and consumer markets.

The DMP3018SFK belongs to Diodes' advanced P-channel TrenchMOS™ product line, engineered specifically for high-efficiency, low-voltage load switching and synchronous rectification in space-constrained, thermally demanding applications.

FAQ

What is the maximum safe operating junction temperature for DMP3018SFK-13?

The device is rated for TJ from -55°C to +150°C. Maximum continuous operation occurs at TJ ≤ +150°C, supported by its 7.2°C/W RθJC and 55°C/W RθJA (with thermal vias). Derating is required above +125°C ambient per Figure 6 and Figure 7 in DS37604 Rev. 2–2.

Does DMP3018SFK-13 require an external gate resistor for typical 3.3V MCU drive?

No external gate resistor is required for basic on/off switching with 3.3V GPIO, as VGS(th) is -1.6V (typ) and gate leakage is ±10µA. However, a 10Ω series resistor is recommended to dampen ringing during high-speed PWM operation (>500kHz) due to its 8.4Ω intrinsic gate resistance and 2207pF Ciss.

Can DMP3018SFK-13 be used in reverse polarity protection without additional components?

Yes - configured as a high-side switch with source tied to input and drain to load, its body diode blocks reverse current when off. With VGS = 0V, IDSS is only -1µA at -24V, ensuring <10µW standby loss. No external diode or controller is needed for basic protection.

Is the U-DFN2523-6 package compatible with standard reflow profiles for lead-free soldering?

Yes - the package is rated for MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260°C. Recommended profile follows IPC-J-STD-020D: ramp-to-peak ≤3°C/s, time above 217°C = 60–150s, peak = 235–245°C, with NiPdAu-plated terminals ensuring reliable solder wetting.