Diodes Incorporated DMP2004TK

Overview

DMP2004TK from Diodes Incorporated is a P-channel enhancement-mode MOSFET in SOT523 package, rated for -20 V drain-source voltage, 430 mA continuous drain current at 25°C, and 0.7 Ω typical R_DS(ON) at V_GS = -4.5 V. It features low gate threshold (-0.5 to -1.0 V), fast switching (t_D(ON) = 5.9 ns), and ESD-protected gate-designed for compact load switching in space-constrained portable electronics.

For engineers reviewing the DMP2004TK datasheet, DMP2004TK pinout, DMP2004TK application, or DMP2004TK equivalent, key selection criteria include its AEC-Q101 qualification, low-voltage gate drive compatibility (down to -1.8 V), thermal resistance of 558 °C/W on FR-4, and suitability for battery-powered power path control where leakage (<1.0 µA) and input capacitance (47 pF) impact efficiency.

Technical Context

This discrete P-channel MOSFET operates as a high-side load switch with depletion-free enhancement-mode behavior. Its gate threshold range (-0.5 to -1.0 V) enables reliable turn-on from low-voltage logic (e.g., 1.8 V or 2.5 V I/O rails), while the integrated gate protection diode and ESD-hardened structure support robust operation in noisy environments.

The device's dynamic characteristics-including 0.55 nC total gate charge at V_GS = -4.5 V, 25.5 ns turn-off delay, and 7.3 ns reverse recovery time-are optimized for high-frequency DC-DC converter synchronous rectification and USB port power control, where switching losses and body diode conduction must be tightly managed.

Key Specifications

Pinout & Package

Package: SOT523 - ultra-small surface-mount plastic package (1.60 × 1.60 × 0.75 mm), moisture sensitivity level 1, lead-free and RoHS-compliant, optimized for high-density portable PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMG2305UVT-7 and AO3401, the DMP2004TK delivers optimal balance of ultra-low gate charge (0.55 nC), AEC-Q101 compliance, and minimal leakage (≤1.0 µA), making it uniquely suited for battery-constrained, safety-aware, and high-frequency load switching in portable and automotive domains.

Availability

DMP2004TK is available at Aetrix Electronics and suitable for USB power management, portable sensor domain isolation, automotive body control modules, and LED backlight dimming requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for DMP2004TK 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, energy-efficient components for automotive, industrial, and consumer markets.

The DMP2004TK belongs to Diodes' AEC-Q101-qualified small-signal MOSFET product line, engineered specifically for space-constrained, low-voltage load switching applications demanding low gate threshold, low leakage, and robust ESD immunity.

FAQ

What is the maximum continuous drain current for DMP2004TK at 85°C ambient?

The DMP2004TK supports -310 mA continuous drain current at T_A = +85°C, derated from -430 mA at 25°C due to thermal limitations of the SOT523 package. This value assumes mounting on FR-4 PCB with minimum recommended pad layout per DS30932 Rev. 7–2.

Can DMP2004TK be driven directly by a 1.8 V GPIO?

Yes. With a gate threshold voltage range of -0.5 V to -1.0 V, the DMP2004TK fully enhances at V_GS = -1.8 V, delivering ≤1.6 Ω R_DS(ON) at -150 mA. This enables direct interface with 1.8 V logic without level-shifting circuitry.

Is DMP2004TK suitable for reverse polarity protection?

Yes. Configured as a high-side switch with source tied to input supply and drain to load, the DMP2004TK's body diode blocks reverse current when the gate is held at ground. Its -20 V V_DSS rating supports common 12 V and 5 V reverse protection schemes.

Does DMP2004TK require external gate resistor for ESD protection?

No. The device integrates ESD protection on the gate terminal (HBM ≥ 2 kV), eliminating the need for external series resistors in most applications. However, a small gate resistor (e.g., 10–100 Ω) may still be used to dampen ringing in high-dI/dt switching environments.