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Diodes Incorporated DMG3404L-13

Name: DMG3404L-13
Brand: Diodes Incorporated
SKU: DMG3404L-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMG3404L-13

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: DMG3404L-13.pdf

Description:: MOSFET N-CH 30V 4.2A SOT23

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Product details

Overview

DMG3404L-13 from Diodes Incorporated is an N-channel enhancement-mode MOSFET in SOT23 package, rated for 30V V_DSS, 25 mΩ R_DS(ON) @ 10V V_GS, and 5.8A continuous drain current at +25°C. It delivers low conduction loss and fast switching for compact DC-DC converters, battery charging circuits, and portable power adaptors.

For engineers reviewing the DMG3404L-13 datasheet, DMG3404L-13 pinout, DMG3404L-13 application, or DMG3404L-13 equivalent, key selection criteria include R_DS(ON) at 4.5V (35 mΩ), thermal resistance (96 °C/W with thermal bias), gate charge (13.2 nC), and SOT23 footprint compatibility in space-constrained power stages.

Technical Context

This MOSFET employs a planar silicon process optimized for low R_DS(ON) while maintaining controlled gate charge (Q_g = 13.2 nC) and low output capacitance (C_oss = 66 pF). Its gate threshold voltage (1.0–2.0 V) enables reliable turn-on with 3.3V and 5V logic-level drivers.

The device exhibits normalized R_DS(ON) increase of ≤1.4× from –55°C to +150°C at V_GS = 4.5V, supporting stable operation across industrial temperature ranges. Diode forward voltage is 0.75 V typical at 1 A, enabling efficient synchronous rectification or reverse polarity protection.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	30 V - Maximum blocking voltage in high-side or low-side switch configurations
R_DS(ON) @ 10V	25 mΩ - Enables <145 mW conduction loss at 5.8 A, critical for thermally constrained PCBs
R_DS(ON) @ 4.5V	35 mΩ - Supports direct drive from 3.3V/5V microcontrollers without level-shifting
Q_g	13.2 nC - Determines gate driver power requirement and switching transition time
C_iss	641 pF - Impacts gate drive loop stability and EMI generation during hard switching
R_θJA (thermal bias)	96 °C/W - Specifies junction-to-ambient rise under recommended 1-inch² copper thermal pad
I_D (continuous, 70°C)	4.9 A - Real-world current limit in ambient temperatures up to 70°C with thermal bias

Pinout & Package

Package: SOT23 - Surface-mount plastic package with 3-terminal configuration, 2.9 mm × 1.35 mm footprint, UL 94V-0 rated molding compound, and matte tin-plated copper leadframe.

Pin/Terminal	Circuit Role	Design Meaning
Drain (D)	Main current-carrying terminal (high-side or low-side switch node)	Connected to load or supply rail; handles full switched current and must be routed with adequate copper area
Gate (G)	Control input for channel conduction	High-impedance node requiring low-inductance gate drive path; sensitive to ringing due to C_iss/C_rss
Source (S)	Reference node for gate drive and current return path	Must be tied directly to power ground plane; serves as common reference for V_GS and body diode cathode

Key Features

Feature	Design Value
Low R_DS(ON) at 4.5V	35 mΩ enables efficient 3.3V-driven load switches in USB-powered devices
Fast switching speed	t_F = 5.2 ns and t_D(OFF) = 22 ns support >1 MHz DC-DC operation with minimal dead-time loss
Low input capacitance	C_iss = 641 pF reduces gate drive power and improves EMI profile vs. higher-C_iss alternatives
Green, RoHS-compliant construction	Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) meets IPC-1752A reporting requirements

Applications

Battery Charging Circuit

USB Power Delivery Switch

Use Scenario: High-efficiency linear or synchronous buck charger for Li-ion cells in wearables and Bluetooth headsets.

IC Role / Device Role: Low-side synchronous rectifier or pass transistor in charging path control.

Use Value: 35 mΩ R_DS(ON) at 4.5V ensures <120 mW loss at 2 A, extending runtime and reducing thermal stress on small PCBs.

Use Scenario: Input power path management in portable USB-C accessories with overvoltage/overcurrent protection.

IC Role / Device Role: Load switch controlling VBUS connection between upstream port and downstream device.

Use Value: Fast 5.2 ns fall time minimizes glitch risk during hot-plug events; 30V rating accommodates USB PD transient surges.

DC-DC Converter High-Side Switch

Portable Power Adaptor Output Stage

Use Scenario: 5V–12V buck converter in IoT edge nodes where board space limits heatsink use.

IC Role / Device Role: High-side switch in non-synchronous topology or low-side switch in synchronous design.

Use Value: 96 °C/W R_θJA with thermal bias allows 4.9 A continuous current at 70°C ambient-no external heatsink required.

Use Scenario: Secondary-side synchronous rectifier in 5V/9V/12V AC-DC adapters for smartphones and tablets.

IC Role / Device Role: Replacement for Schottky diode to reduce conduction loss and improve efficiency.

Use Value: 0.75 V V_SD and 25 mΩ R_DS(ON) cut forward drop by >40% vs. 0.45 V Schottky at 3 A, raising efficiency by ~1.2% at full load.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN3025LSD-13	30V, 2.5 mΩ R_DS(ON) @ 10V, SO-8 package, higher Q_g (22 nC)	Requires larger PCB area and stronger gate driver; better for high-current, lower-frequency (>100 kHz) designs	Select when thermal budget allows SO-8 and peak current exceeds 10 A
AO3400	30V, 28 mΩ R_DS(ON) @ 10V, SOT23, Q_g = 17 nC, C_iss = 720 pF	Slightly higher conduction loss and gate drive demand; identical footprint but less optimized for 4.5V drive	Choose if AO3400 is already qualified in legacy BOM and 4.5V R_DS(ON) margin is acceptable

Compared with DMN3025LSD-13 and AO3400, the DMG3404L-13 offers the best balance of low 4.5V R_DS(ON), moderate Q_g, and SOT23 size-making it optimal for space-limited, 3.3V/5V-driven, sub-6A power switches where thermal headroom is constrained.

Availability

DMG3404L-13 is available at Aetrix Electronics and suitable for battery charging circuits, USB power delivery switches, and portable power adaptors requiring stable component supply and consistent SOT23 sourcing.

Supply support for DMG3404L-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

The DMG3404L belongs to Diodes' PowerMOS™ portfolio, engineered specifically for high-efficiency, low-voltage power management in portable and space-constrained applications-emphasizing low R_DS(ON), fast switching, and robust thermal performance in miniature packages.

FAQ

What is the maximum continuous drain current for DMG3404L-13 at 70°C ambient?

The DMG3404L-13 supports 4.9 A continuous drain current at TA = +70°C when mounted on an FR-4 PCB with thermal bias to a 1-inch² copper plate (Note 6, datasheet DS37640 Rev. 2-2). This reflects derating from the 5.8 A rating at +25°C due to thermal resistance (R_θJA = 96 °C/W).

Can DMG3404L-13 be driven directly by a 3.3V GPIO?

Yes-its gate threshold voltage (V_GS(TH)) ranges from 1.0 V to 2.0 V, and R_DS(ON) is specified at 35 mΩ with V_GS = 4.5 V. At 3.3V, it achieves partial enhancement; for full conduction and minimal loss, a 4.5V or 5V gate drive is recommended, though many 3.3V systems operate it acceptably with margin.

Is the SOT23 package of DMG3404L-13 lead-free and RoHS compliant?

Yes-the DMG3404L-13 uses matte tin annealed over copper leadframe, contains no purposely added lead, and meets EU Directive 2011/65/EU (RoHS 2). It is also halogen- and antimony-free ("Green" per Diodes' definition: <900 ppm Br/Cl, <1000 ppm Sb).

What is the safe operating area (SOA) limitation for single-pulse operation?

Per Figure 11 in DS37640, the DMG3404L-13 supports 30 A pulsed drain current (I_DM) for pulse widths ≤10 µs and duty cycle ≤1%. At longer pulses (e.g., 100 µs), the SOA is limited by R_DS(ON) heating and junction temperature-maximum V_DS drops to ~12 V at 30 A for 100 µs.

DMG3404L-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 4.2A (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 25mOhm @ 5.8A, 10V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 13.2 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 641 pF @ 15 V

FET Feature:: -

Power Dissipation (Max):: 780mW (Ta)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

DMG3404L-13 FAQ

1.How can I place an order for DMG3404L-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMG3404L-13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for DMG3404L-13 reliable?

The price and inventory of DMG3404L-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMG3404L-13 is usually 5 days.

3.What payment methods are accepted for DMG3404L-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMG3404L-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMG3404L-13?

DMG3404L-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMG3404L-13 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for DMG3404L-13?

For technical support, including DMG3404L-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMG3404L-13 requirements.

6.How does Aetrix verify that DMG3404L-13 is sourced from the original manufacturer or authorized distributors?

All DMG3404L-13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DMG3404L-13 meets industry standards.

7.What is the process for return or replacement of DMG3404L-13?

All DMG3404L-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMG3404L-13, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The DMG3404L-13 part is unused and in its original packaging.

Return procedure for DMG3404L-13:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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