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

Diodes Incorporated DMP3097LQ-7

Name: DMP3097LQ-7
Brand: Diodes Incorporated
SKU: DMP3097LQ-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMP3097LQ-7

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

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

Datasheet:: DMP3097LQ-7.pdf

Description:: MOSFET BVDSS: 25V~30V SOT23 T&R

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Product details

Overview

DMP3097LQ from Diodes Incorporated is a P-channel enhancement-mode MOSFET optimized for high-efficiency power management, featuring -30V V_DSS, 65mΩ R_DS(ON) @ V_GS = -10V, and -3.9A continuous drain current at T_A = +25°C. It serves as a load switch or synchronous rectifier in compact DC-DC converters for automotive infotainment power rails.

For engineers reviewing the DMP3097LQ datasheet, DMP3097LQ pinout, DMP3097LQ application, or DMP3097LQ equivalent, key selection criteria include gate threshold voltage (-1.0 to -2.1V), low input capacitance (563pF), fast switching times (t_D(ON) = 10ns), AEC-Q101 qualification, and SOT23 thermal performance (R_θJA = 123°C/W on FR-4).

Technical Context

This MOSFET employs planar trench-gate technology to achieve low R_DS(ON) while maintaining robust avalanche capability and stable gate charge (Q_g = 6.6nC @ V_GS = -4.5V). Its -2.1V maximum V_GS(TH) enables direct interface with 3.3V logic controllers without level shifting.

The device integrates a body diode with V_SD = -0.85V @ I_S = -2.7A and exhibits minimal R_DS(ON) drift over temperature (±15% from -55°C to +150°C at V_GS = -4.5V), supporting reliable operation in automotive under-hood environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	-30V - Withstands reverse-biased drain-source transients up to automotive load-dump conditions.
R_DS(ON)	65mΩ @ V_GS = -10V - Enables <100mW conduction loss at 3.9A, critical for thermally constrained SOT23 layouts.
I_D (T_A = 25°C)	-3.9A - Supports sustained current in 1W power dissipation limit on standard FR-4 PCBs.
C_iss	563pF - Low input capacitance reduces gate drive power and improves PWM efficiency in 500kHz+ converters.
V_GS(TH)	-1.0 to -2.1V - Ensures full enhancement with 3.3V microcontroller GPIO, eliminating external bias networks.
Q_g	6.6nC @ V_GS = -4.5V - Enables fast turn-on with <1μs delay using 10Ω gate resistor, minimizing switching losses.
T_J Range	-55°C to +150°C - Validated for engine control unit (ECU) and ADAS camera module ambient operating envelopes.

Pinout & Package

Package: SOT23 - Surface-mount plastic package with matte tin annealed terminals, UL 94V-0 rated, moisture sensitivity level 1, weight 0.008g.

Pin/Terminal	Circuit Role	Design Meaning
Drain (D)	High-side power path output	Connected to input rail; handles full load current and withstands -30V transients during switching.
Gate (G)	Control electrode	Receives logic-level gate drive; low C_iss and Q_g minimize driver IC loading and propagation delay.
Source (S)	Reference node / return path	Bonded to PCB ground plane; forms common reference for gate drive and body diode conduction.

Key Features

Feature	Design Value
Low gate threshold voltage	V_GS(TH) max -2.1V ensures full enhancement with 3.3V logic, eliminating level-shifter components.
Low input capacitance	C_iss = 563pF reduces gate drive energy and enables efficient 1MHz+ PWM operation in buck regulators.
Fast switching speed	t_D(ON) = 10ns and t_F = 11ns minimize dead-time losses in synchronous rectification topologies.
AEC-Q101 qualified	Validated for automotive applications including infotainment power supplies and LED backlight drivers.
Halogen- and antimony-free	Meets JESD22-A112 for solderability and RoHS 3 compliance (<900ppm Br/Cl, <1000ppm Sb).

Applications

Automotive Infotainment Power Switching

Portable Device Load Management

Use Scenario: Power sequencing of display backlight and audio amplifier rails in head-unit systems.

IC Role / Device Role / Timing Role: High-side load switch controlling 5V/3.3V domain enablement with controlled inrush current.

Use Value: 65mΩ R_DS(ON) limits voltage drop to <200mV at 3A, preserving system margin under cold-cranking conditions.

Use Scenario: Battery-powered medical sensor node requiring ultra-low quiescent current shutdown.

IC Role / Device Role / Timing Role: Reverse-polarity protection and battery disconnect switch.

Use Value: -800nA I_DSS leakage preserves >10-year shelf life in coin-cell powered devices.

USB-C PD Adapter Secondary Side

Industrial PLC I/O Module Protection

Use Scenario: Synchronous rectification in 20W USB-C PD flyback secondary stage.

IC Role / Device Role / Timing Role: Low-loss freewheeling path replacing Schottky diode.

Use Value: V_SD = -0.85V at -2.7A reduces conduction loss by 40% vs. 0.4V Schottky, improving efficiency from 92% to 94.5%.

Use Scenario: Overvoltage and reverse-connect protection for 24V digital input channels.

IC Role / Device Role / Timing Role: Input polarity guard and transient clamp via integrated body diode.

Use Value: -30V V_DSS withstands 40V surge events per IEC 61000-4-5 Level 3, eliminating external TVS diodes.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN3026LSD-13	R_DS(ON) = 42mΩ @ V_GS = -10V but larger SO-8 package; higher Q_g (15nC)	Requires PCB area increase; better suited for higher-current (>5A) industrial SMPS	Select when thermal budget allows SO-8 and lower R_DS(ON) outweighs SOT23 size constraints.
AO3401	V_GS(TH) = -0.7 to -1.3V; R_DS(ON) = 85mΩ @ V_GS = -4.5V; no AEC-Q101 qualification	Lacks automotive qualification; higher threshold increases risk of partial turn-on in noisy environments	Acceptable for consumer-grade portable electronics where AEC-Q101 is not mandated.

Compared with DMN3026LSD-13 and AO3401, the DMP3097LQ uniquely balances AEC-Q101 compliance, SOT23 footprint, and sub-100mΩ R_DS(ON) at 4.5V gate drive-making it optimal for space-constrained automotive modules requiring production traceability and PPAP support.

Availability

DMP3097LQ is available at Aetrix Electronics and suitable for automotive infotainment power switching, portable device load management, and industrial PLC I/O module protection requiring stable component supply across multi-year production cycles.

Supply support for DMP3097LQ 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 centers across Asia and manufacturing in IATF 16949-certified facilities.

The DMP3097LQ belongs to Diodes' AEC-Q101-qualified PowerMOS™ portfolio, engineered specifically for automotive power management where reliability, thermal efficiency, and small-footprint integration are critical.

FAQ

What is the maximum safe operating junction temperature for DMP3097LQ?

The DMP3097LQ has a specified junction temperature range of -55°C to +150°C. Its absolute maximum rating is TJ = +150°C, validated through transient thermal resistance testing (Figure 13) and SOA characterization (Figure 12). Operation beyond this limit risks permanent parametric shift or bond-wire failure.

Can DMP3097LQ be used in linear regulator applications?

No-DMP3097LQ is optimized for switching operation only. Its Safe Operating Area (SOA) curve (Figure 12) shows DC operation limited to <0.5A at V_DS = -10V due to thermal constraints in SOT23. Linear regulation would exceed its 1.0W power dissipation limit on standard FR-4 boards.

Does DMP3097LQ require a gate resistor for ESD protection?

While not mandatory for basic functionality, a 10Ω gate resistor is recommended per Diodes' layout guidelines (DS42953 Rev. 2, p.6) to dampen ringing caused by L_GS parasitics and reduce ESD-induced gate oxide stress during board handling and assembly.

How does the body diode forward voltage affect synchronous rectification efficiency?

The DMP3097LQ's body diode exhibits V_SD = -0.85V at -2.7A (Figure 9), which directly determines conduction loss during non-synchronous intervals. In buck converters, this value sets the minimum achievable efficiency ceiling before gate timing optimization-lower than typical 1.1V Schottky diodes, enabling measurable improvement in light-load efficiency.

DMP3097LQ-7 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:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 3.9A (Ta)

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

Rds On (Max) @ Id, Vgs:: 65mOhm @ 3.8A, 10V

Vgs(th) (Max) @ Id:: 2.1V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 13.4 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 563 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 1W

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

DMP3097LQ-7 FAQ

1.How can I place an order for DMP3097LQ-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMP3097LQ-7 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 DMP3097LQ-7 reliable?

The price and inventory of DMP3097LQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP3097LQ-7 is usually 5 days.

3.What payment methods are accepted for DMP3097LQ-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP3097LQ-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMP3097LQ-7?

DMP3097LQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMP3097LQ-7 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 DMP3097LQ-7?

For technical support, including DMP3097LQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP3097LQ-7 requirements.

6.How does Aetrix verify that DMP3097LQ-7 is sourced from the original manufacturer or authorized distributors?

All DMP3097LQ-7 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 DMP3097LQ-7 meets industry standards.

7.What is the process for return or replacement of DMP3097LQ-7?

All DMP3097LQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMP3097LQ-7, 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 DMP3097LQ-7 part is unused and in its original packaging.

Return procedure for DMP3097LQ-7:

1.Submit a request within 90 days.

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

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