Diodes Incorporated ZXMD63N03XTA

Overview

ZXMD63N03XTA from Diodes Incorporated is a dual-channel 30V N-channel enhancement-mode MOSFET in MSOP-8 package, rated for 2.3A continuous drain current at V_GS = 4.5V, with R_DS(on) = 200mΩ (typ) and 135mΩ (typ) at V_GS = 10V, optimized for high-efficiency DC-DC converters and motor control switches.

For engineers reviewing the ZXMD63N03XTA datasheet, ZXMD63N03XTA pinout, ZXMD63N03XTA application, or ZXMD63N03XTA equivalent, key selection criteria include dual-N-channel topology, low-threshold gate drive (V_GS(th) = 1.0V min), fast switching (t_r = 4.1ns, t_f = 4.4ns), body diode forward voltage (V_SD = 0.95V), and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This dual N-MOSFET integrates two identical enhancement-mode silicon devices in a single MSOP-8 package, sharing common source terminals per channel and enabling synchronous rectification or half-bridge configurations. Its low R_DS(on) and fast switching support high-frequency power conversion up to several hundred kHz.

The device features a 1.0V minimum gate threshold voltage, enabling direct drive from 3.3V logic, and includes an integrated body diode with 0.95V forward drop at 1.7A - critical for freewheeling paths in buck regulators and H-bridge motor drivers.

Key Specifications

Pinout & Package

MSOP-8 surface-mount package with exposed drain pad for thermal enhancement; 0.65mm pitch, 3.0mm × 4.9mm footprint, 1.10mm max height, RoHS-compliant matte tin terminations.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMN63D8LW-7 and SI6926ADQ-T1-GE3, ZXMD63N03XTA delivers optimal balance of integration (dual channel in MSOP-8), 3.3V drivability, and high-frequency capability - making it preferred for space-constrained automotive and portable power systems where layout simplicity and EMI control are critical.

Availability

ZXMD63N03XTA is available at Aetrix Electronics and suitable for DC-DC converters, automotive body control modules, and motor control applications requiring stable component supply across production lifecycles.

Supply support for ZXMD63N03XTA 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 automotive, industrial, and consumer markets.

ZXMD63N03XTA belongs to Diodes' AEC-Q101-qualified power MOSFET product line, engineered specifically for space-constrained, high-efficiency automotive and industrial power switching where dual-channel integration and 3.3V logic compatibility are essential.

FAQ

What is the maximum continuous drain current for ZXMD63N03XTA at 70°C ambient?

The ZXMD63N03XTA supports 1.8A continuous drain current at T_A = +70°C with V_GS = 4.5V, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limitations on the MSOP-8 package's 100°C/W R_θJA under standard FR4 PCB conditions with 1oz copper coverage.

Does ZXMD63N03XTA support back-to-back FET configuration for USB-C power path control?

Yes - its dual N-channel structure, 30V V_DSS, and 1.0V V_GS(th) enable reliable back-to-back implementation for USB-C PD power path switching. The matched channels simplify gate drive design, and the 0.95V body diode V_SD ensures low-loss reverse conduction during cable insertion events.

Is the MSOP-8 package thermally enhanced, and how is heat dissipated?

Yes - the MSOP-8 package features an exposed drain pad that serves as the primary thermal path. When soldered to a PCB copper pour, it achieves R_θJL = 84.9°C/W to leads, significantly improving power handling beyond the 143°C/W R_θJA rating. Recommended pad layout follows Diodes AP02001 guidelines.

How does the AEC-Q101 qualification impact design-in for non-automotive applications?

AEC-Q101 qualification confirms extended temperature operation (–55°C to +150°C), robust HBM ESD tolerance (>2kV), and accelerated life testing - providing superior reliability margins for industrial, medical, and aerospace applications where long-term stability and field failure avoidance are critical, even outside automotive use cases.