Diodes Incorporated DMP1070U-7

Overview

DMP1070U from Diodes Incorporated is a P-channel enhancement-mode MOSFET designed for high-efficiency power management, featuring -12 V drain-source breakdown voltage, 31 mΩ R_DS(on) at V_GS = -4.5 V, and -5.4 A continuous drain current at T_A = +25°C. It serves as a low-side load switch or synchronous rectifier in compact DC-DC converters.

For engineers reviewing the DMP1070U datasheet, DMP1070U pinout, DMP1070U application, or DMP1070U equivalent, key selection criteria include its SOT23 package footprint, gate threshold range (-0.3 to -1.0 V), fast switching (t_F = 950 ns), ESD-protected gate, and thermal resistance of 89 °C/W under enhanced PCB layout.

Technical Context

This MOSFET employs a trench-gate process optimized for low R_DS(on) while preserving low gate charge (Q_G = 11.5 nC) and minimal output capacitance (C_oss = 123 pF). Its negative V_GS(th) enables direct logic-level drive from 3.3 V or 5 V controllers without level shifting.

The integrated body diode exhibits V_SD = -0.6 V at -1 A, supporting bidirectional current handling in buck converter freewheeling paths. Thermal performance is specified for both standard FR-4 (R_θJA = 140 °C/W) and enhanced copper pad (R_θJA = 89 °C/W) mounting conditions.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount, 3-terminal plastic package with 0.009 g mass, UL 94V-0 rated molding compound, and matte tin-plated copper lead-frame.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMG1012T-7 and AO3401, the DMP1070U delivers superior R_DS(on), lower gate charge, and factory-verified ESD protection-making it optimal for space-constrained, high-efficiency, and reliability-critical 3.3 V/5 V logic-driven power switches.

Availability

DMP1070U is available at Aetrix Electronics and suitable for DC-DC converters, USB power switches, and LED backlight dimming circuits requiring stable component supply across industrial and consumer production programs.

Supply support for DMP1070U 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The DMP1070U belongs to Diodes' logic-level P-channel MOSFET product line, engineered specifically for compact, high-efficiency power management in battery-powered and space-constrained systems where low gate drive voltage and thermal performance are critical.

FAQ

Is the DMP1070U suitable for 3.3 V GPIO-driven switching?

Yes. With a gate threshold voltage range of -0.3 V to -1.0 V and guaranteed R_DS(on) of 31 mΩ at V_GS = -4.5 V, the DMP1070U fully enhances using standard 3.3 V logic outputs when referenced to source. No level shifter is required for typical low-side switch configurations.

What is the maximum safe operating temperature for continuous use?

The DMP1070U has an operating junction temperature range of -55°C to +150°C. Under standard FR-4 PCB layout with 2 oz copper and minimum pad size, its thermal resistance is 140 °C/W; with enhanced 1-inch² copper, it drops to 89 °C/W. At 1.4 W dissipation, junction temperature remains within spec at ambient ≤75°C.

Does the DMP1070U include built-in ESD protection?

Yes. The datasheet explicitly states "ESD Protected Gate" and specifies ±8 V gate-source voltage rating. This internal protection meets HBM Class 1B (≥2 kV) and eliminates the need for external gate protection diodes in most applications unless exposed to >8 kV system-level ESD events.

Can the DMP1070U replace a Schottky diode in synchronous rectification?

Yes. Its low R_DS(on) (31 mΩ) and integrated body diode (V_SD = -0.6 V at -1 A) make it suitable for synchronous rectification in buck converters up to 1 MHz. Unlike Schottky diodes, it avoids reverse recovery loss and enables active control of conduction timing via gate drive.