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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Diodes Incorporated DMN3020LK3-13

Name: DMN3020LK3-13
Brand: Diodes Incorporated
SKU: DMN3020LK3-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMN3020LK3-13

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: DMN3020LK3-13.pdf

Description:: MOSFET N-CH 30V 11.3A TO252-3

Quantity:: RFQ Add To RFQ list

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Inventory:5,093

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Product details

Overview

DMN3020LK3-13 from Diodes Incorporated is a 30V N-channel enhancement-mode MOSFET in TO252-3L (DPAK) package, optimized for high-efficiency power management with R_DS(on) = 20 mΩ @ V_GS = 10 V and 34 mΩ @ V_GS = 4.5 V, supporting 16.7 A continuous drain current at T_A = 25°C - used in DC-DC converters and LED backlighting circuits.

For engineers reviewing the DMN3020LK3-13 datasheet, DMN3020LK3-13 pinout, DMN3020LK3-13 application, or DMN3020LK3-13 equivalent, key selection criteria include low R_DS(on) at 4.5 V gate drive, fast switching (t_D(off) = 16 ns), thermal resistance R_θJA = 30.8 °C/W on 50 mm × 50 mm 2 oz FR4, and RoHS-compliant "Green" packaging.

Technical Context

This MOSFET employs planar silicon process technology to achieve balanced conduction loss and switching speed. Its gate threshold voltage (1.0–3.0 V) enables compatibility with 3.3 V and 5 V logic-level drivers, while its body diode exhibits t_rr = 12 ns and Q_rr = 4.8 nC for reduced recovery loss in synchronous rectification.

The device operates across –55°C to +150°C junction temperature range and features R_θJL = 2.24 °C/W for efficient heat transfer to PCB copper, validated under JEDEC-standard surface-mount conditions on FR4 substrates with defined copper coverage and thickness.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	30 V - maximum blocking voltage before avalanche breakdown; suitable for 24 V rail systems with margin.
R_DS(on) @ 10 V	20 mΩ - enables ≤0.35 W conduction loss at 12 A, critical for thermally constrained DC-DC phases.
R_DS(on) @ 4.5 V	34 mΩ - ensures usable on-resistance with standard logic-level gate drivers without level-shifting.
I_D (continuous)	16.7 A @ T_A = 25°C - supports high-current buck converter outputs when paired with adequate PCB copper area.
t_D(off)	16 ns - short turn-off delay minimizes cross-conduction loss in synchronous buck topologies.
Q_g @ 10 V	12.9 nC - defines gate drive energy requirement; compatible with common MOSFET drivers like DIODES AP22802.
R_θJA	30.8 °C/W - measured on 50 mm × 50 mm × 1.6 mm FR4 with 2 oz copper; sets thermal derating slope for ambient-limited designs.

Pinout & Package

Package: TO252-3L (DPAK), surface-mount, molded plastic case with matte tin-plated copper leadframe, UL 94V-0 rated, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
D (Drain)	Main current path from source to load	Connected to large copper pour for thermal dissipation and high-current routing; electrically tied to tab.
S (Source)	Reference node for gate control and current return	Provides ground reference for gate driver; forms cathode of integrated body diode.
G (Gate)	Control terminal for channel formation	High-impedance input requiring <13 nC charge for full enhancement; sensitive to ESD per HBM Class 1C.

Key Features

Feature	Design Value
Low R_DS(on) at 4.5 V	34 mΩ enables direct interfacing with microcontroller GPIOs or logic-level PWM controllers without gate boosting.
Fast switching performance	12.9 nC total gate charge and 16 ns turn-off delay reduce switching losses below 500 kHz in hard-switched converters.
Integrated body diode	1.2 V forward drop at 1.7 A and 12 ns reverse recovery support synchronous rectification in buck and flyback topologies.
RoHS-compliant "Green" construction	No halogens or antimony; meets EU RoHS Directive 2011/65/EU and IPC-1752A material declaration requirements.

Applications

LED Backlighting

DC-DC Buck Converter

Use Scenario: Driving parallel strings of white LEDs in LCD panel backlight units using constant-current PWM dimming.

IC Role / Device Role: High-side or low-side switch controlling LED current path during PWM on-cycles.

Use Value: Low 34 mΩ R_DS(on) at 4.5 V gate drive reduces conduction loss and self-heating during 100% duty cycle, preserving luminance stability.

Use Scenario: Power stage switch in 12 V input to 3.3 V/5 V point-of-load buck regulators for FPGA or SoC power rails.

IC Role / Device Role: Synchronous rectifier in high-frequency (300–600 kHz) buck converter output stage.

Use Value: Fast 12 ns body diode recovery and low Q_rr minimize shoot-through risk and improve efficiency >92% at 10 A load.

Power Management IC Interface

Load Switch for USB Peripherals

Use Scenario: External pass transistor controlled by PMIC enable signals in multi-rail power sequencing circuits.

IC Role / Device Role: Controlled power switch enabling/disabling downstream 3.3 V or 5 V domains based on system state.

Use Value: 1.0–3.0 V gate threshold ensures reliable turn-on with PMIC's 3.3 V enable outputs, avoiding partial enhancement and thermal runaway.

Use Scenario: Hot-swap protection and inrush limiting for USB-powered peripherals such as external HDDs or docking stations.

IC Role / Device Role: Low-loss series pass element between upstream USB VBUS and downstream load.

Use Value: 20 mΩ R_DS(on) limits voltage drop to <300 mV at 1.5 A, maintaining USB 2.0 voltage compliance while reducing thermal footprint.

Availability

DMN3020LK3-13 is available at Aetrix Electronics and suitable for DC-DC converters, LED backlighting, and power management IC interface applications requiring stable component supply and RoHS-compliant sourcing.

Supply support for DMN3020LK3-13 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 DMN3020LK3-13 belongs to Diodes' logic-level N-channel MOSFET product line, engineered specifically for high-efficiency, medium-power switching in space-constrained consumer and industrial power supplies.

FAQ

Is DMN3020LK3-13 still in active production?

No - the official Diodes Incorporated datasheet states "DISCONTINUED" on page 1. However, Aetrix Electronics maintains legacy inventory and offers last-time-buy support with full traceability and extended lifecycle coordination for ongoing production programs.

What is the maximum safe operating temperature for DMN3020LK3-13?

The absolute maximum junction temperature is +150°C, and the storage temperature range is –55°C to +150°C. Operation above 125°C requires derating per the R_θJA curve; sustained operation beyond 135°C risks accelerated parametric drift and reduced reliability.

Can DMN3020LK3-13 be used in synchronous rectification?

Yes - its body diode has t_rr = 12 ns and Q_rr = 4.8 nC, and its low R_DS(on) allows it to replace Schottky diodes in secondary-side synchronous rectifiers up to 300 kHz in flyback or forward converters.

Does DMN3020LK3-13 require a gate resistor for stability?

A gate resistor (typically 5–20 Ω) is recommended to dampen ringing caused by gate-drain capacitance (C_rss = 71 pF) and PCB inductance. The datasheet's switching test circuit uses R_G ≅ 6.0 Ω, confirming suitability for standard gate driver layouts without added complexity.

DMN3020LK3-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 11.3A (Ta)

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

Rds On (Max) @ Id, Vgs:: 20mOhm @ 7A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 6.3 nC @ 4.5 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 608 pF @ 15 V

FET Feature:: -

Power Dissipation (Max):: 2.17W (Ta)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252-3

DMN3020LK3-13 FAQ

1.How can I place an order for DMN3020LK3-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMN3020LK3-13 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 DMN3020LK3-13 reliable?

The price and inventory of DMN3020LK3-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMN3020LK3-13 is usually 5 days.

3.What payment methods are accepted for DMN3020LK3-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMN3020LK3-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMN3020LK3-13?

DMN3020LK3-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMN3020LK3-13 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 DMN3020LK3-13?

For technical support, including DMN3020LK3-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMN3020LK3-13 requirements.

6.How does Aetrix verify that DMN3020LK3-13 is sourced from the original manufacturer or authorized distributors?

All DMN3020LK3-13 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 DMN3020LK3-13 meets industry standards.

7.What is the process for return or replacement of DMN3020LK3-13?

All DMN3020LK3-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMN3020LK3-13, 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 DMN3020LK3-13 part is unused and in its original packaging.

Return procedure for DMN3020LK3-13:

1.Submit a request within 90 days.

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

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