Diodes Incorporated DMC3032LFDB-13

Overview

DMC3032LFDB-13 from Diodes Incorporated is a complementary-pair enhancement-mode MOSFET in a single U-DFN2020-6 (Type B) package, integrating an N-channel (30V, 30mΩ @ 10V) and P-channel (−30V, 70mΩ @ −10V) device for half-bridge or synchronous rectifier topologies. It delivers 5.3A/−3.4A continuous drain current at +25°C and supports high-efficiency DC-DC converters in space-constrained power management systems.

For engineers reviewing the DMC3032LFDB-13 datasheet, DMC3032LFDB-13 pinout, DMC3032LFDB-13 application, or DMC3032LFDB-13 equivalent, key selection criteria include dual-channel R_DS(ON) matching at 4.5V/−4.5V, low gate charge (10.6nC/7.8nC), thermal resistance (R_θJA = 98°C/W on recommended layout), and AEC-Q101 readiness for automotive body control modules.

Technical Context

This dual MOSFET implements independent N- and P-channel enhancement-mode structures with matched threshold voltages (V_GS(TH) = 1.0–2.0V / −1.0–−2.1V) and optimized gate drive compatibility for complementary switching. Its U-DFN2020-6 (Type B) footprint enables bidirectional current handling with integrated body diodes exhibiting V_SD = 0.7–1.2V (Q1) and −0.8–−1.2V (Q2) at rated current.

The device operates across −55°C to +150°C junction temperature, with avalanche-rated energy (E_AS = 10mJ per channel) and pulsed current capability (I_DM = ±20A). Thermal design relies on its 98°C/W R_θJA under 2oz copper FR-4 with minimum pad layout, supporting stable operation in thermally dense DC-DC stages.

Key Specifications

Pinout & Package

Package: U-DFN2020-6 (Type B), 2.0mm × 2.0mm × 0.6mm, lead-free NiPdAu-plated copper leadframe, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar complementary MOSFET applications.

Compared with DMC3032LFDB-13, DMC2038LSD-7 trades 25% higher conduction loss for SOT-363 compatibility, while DMT6009LPS-13 offers 40% lower R_DS(ON) but sacrifices integrated switching node integrity and increases PCB routing overhead.

Availability

DMC3032LFDB-13 is available at Aetrix Electronics and suitable for DC-DC converters, automotive body controllers, and USB-C power delivery sinks requiring stable component supply, AEC-Q101 traceability, and high-density power stage integration.

Supply support for DMC3032LFDB-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 and automotive markets.

The DMC3032LFDB belongs to Diodes' "PowerMOS Complementary Pair" product line, engineered specifically for space-constrained synchronous rectification and half-bridge applications where matched N/P characteristics and ultra-small U-DFN packaging are critical.

FAQ

What is the maximum continuous drain current for each channel at +75°C ambient?

At T_A = +75°C, the N-channel supports 4.2A and the P-channel supports −2.7A under steady-state conditions with the recommended 1-inch-square 2oz copper pad layout. These values derive directly from the Absolute Maximum Ratings table (Note 5), where derating begins above +25°C ambient due to thermal resistance limits.

Does DMC3032LFDB-13 support gate driving from a 3.3V microcontroller?

No - the N-channel requires ≥4.5V for guaranteed R_DS(ON) ≤42mΩ, and the P-channel needs ≤−4.5V for R_DS(ON) ≤100mΩ. A 3.3V logic signal cannot fully enhance either channel; a dedicated gate driver or level shifter is required to achieve specified on-resistance and switching performance.

How is the shared drain configuration used in practical circuit topologies?

The common drain (Pins 1 and 4) forms the switch node in half-bridge configurations: Pin 1 (Q1 drain) connects to the input rail, Pin 4 (Q2 drain) ties to the same node, allowing Q1 and Q2 to operate as high-side and low-side switches sharing one terminal. This eliminates external connection traces and minimizes parasitic inductance in high-frequency power stages.

Is this device qualified to AEC-Q101, and what documentation supports that claim?

While the DMC3032LFDB-13 is manufactured in IATF 16949-certified facilities and supports PPAP, the datasheet states AEC-Q101 qualification is available "for automotive applications requiring specific change control" upon request. No test report or certificate number is published in DS43676 Rev. 2–2; qualification status must be confirmed directly with Diodes Incorporated for project-specific compliance.