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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FET, MOSFET Arrays

Diodes Incorporated DMC3732UVT-7

Name: DMC3732UVT-7
Brand: Diodes Incorporated
SKU: DMC3732UVT-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMC3732UVT-7

Manufacturer:: Diodes Incorporated

Category:: FET, MOSFET Arrays

Package:: SOT-23-6 Thin, TSOT-23-6

Datasheet:: DMC3732UVT-7.pdf

Description:: MOSFET N/P-CH 30V 1.1A TSOT26

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Product details

Overview

DMC3732UVT from Diodes Incorporated is a complementary-pair enhancement-mode MOSFET in a single TSOT26 package, integrating one 30V N-channel (Q1) and one −30V P-channel (Q2) device. It delivers R_DS(ON) of 460 mΩ @ V_GS = 4.5 V (Q1) and 1000 mΩ @ V_GS = −4.5 V (Q2), with continuous drain currents of 1.1 A and −0.7 A respectively at T_A = +25°C - optimized for compact DC-DC converter power stages and backlight LED current control.

For engineers reviewing the DMC3732UVT datasheet, DMC3732UVT pinout, DMC3732UVT application, or DMC3732UVT equivalent, this dual-channel MOSFET supports low-voltage logic-level drive, exhibits fast switching (t_F = 20 ns Q1 / 20 ns Q2), and maintains stable R_DS(ON) across −55°C to +150°C junction temperature - critical for space-constrained portable power management designs.

Technical Context

This complementary pair enables half-bridge or load-switch topologies without external gate-drive complexity. Q1 and Q2 share thermally coupled die within one TSOT26 package, allowing matched thermal response and synchronized switching behavior under pulsed operation (IDM = 2.6 A / −1.9 A).

Each channel features independent gate terminals and body diodes with characterized V_SD (0.6–1.2 V Q1; −0.9 to −1.2 V Q2) and low input capacitance (C_iss = 40.8 pF / 54 pF), supporting high-frequency PWM control up to several hundred kHz in buck or boost converters.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	30 V (Q1), −30 V (Q2): Supports 24 V rail and 12 V automotive systems with margin against transients.
R_DS(ON) @ V_GS = 4.5 V	460 mΩ (Q1), 1000 mΩ (Q2): Enables <1 W conduction loss at 1 A in compact PCB layouts.
I_D Continuous	1.1 A (Q1), −0.7 A (Q2) at T_A = +25°C: Sufficient for LED backlight strings or auxiliary power rails.
C_iss	40.8 pF (Q1), 54 pF (Q2): Low gate charge (Q_g = 0.9 nC / 1.0 nC) reduces driver power and EMI.
T_J Range	−55°C to +150°C: Validated operation across industrial and extended-temperature consumer environments.
P_D (FR-4, 2 oz Cu)	0.54 W (min pad), 0.83 W (1″² copper): Defines thermal derating limits for surface-mount reliability.

Pinout & Package

Package: TSOT26 - ultra-thin (max height 1.00 mm), 6-pin lead-free plastic package with matte tin annealed terminals; UL 94V-0 rated, MSL Level 1.

Pin/Terminal	Circuit Role	Design Meaning
1 (D1)	Q1 Drain	Main current path for N-channel switch; connected to high-side node in load switch or low-side in buck.
2 (S1)	Q1 Source	Reference node for Q1 gate drive; ties to ground or low-side return in half-bridge configurations.
3 (G1)	Q1 Gate	Logic-level input (V_GS(TH) = 0.45–0.95 V); requires no level-shifting for 3.3 V/5 V microcontrollers.
4 (D2)	Q2 Drain	Main current path for P-channel switch; used as high-side switch output or buck high-side node.
5 (S2)	Q2 Source	Connected to V_IN rail in high-side switch; defines reference for P-channel gate biasing.
6 (G2)	Q2 Gate	Inverted logic control (V_GS(TH) = −0.5 to −1.1 V); driven low to turn on P-channel device.

Key Features

Feature	Design Value
Complementary Pair Integration	Single TSOT26 footprint replaces discrete N+P MOSFETs, reducing board area by >40% and parasitic inductance.
Low R_DS(ON) at 2.5 V Drive	560 mΩ (Q1), 1500 mΩ (Q2): Enables operation from 2.5 V logic rails without gate boosting.
Fast Switching	t_F = 20 ns (Q1), 20 ns (Q2): Minimizes transition losses in 500 kHz+ DC-DC converters.
Green Compliance	Halogen- and antimony-free, RoHS 3 compliant (≤900 ppm Br/Cl, ≤1000 ppm Sb): Meets global environmental mandates.
Thermal Stability	R_DS(ON) normalized variation <1.6× from −55°C to +150°C: Predictable conduction loss across operating range.

Applications

LED Backlight Control

USB-C Power Delivery Load Switch

Use Scenario: Driving parallel white LED strings in thin-profile displays using PWM dimming.

IC Role / Device Role / Timing Role: Q1 acts as low-side PWM switch; Q2 provides reverse-polarity protection and current-sense reference.

Use Value: 460 mΩ R_DS(ON) limits I²R loss to <0.5 W at 1.1 A, enabling passive cooling in bezel-constrained designs.

Use Scenario: Enabling/disabling VBUS path in portable USB-C accessories with overcurrent and reverse-voltage protection.

IC Role / Device Role / Timing Role: Q2 functions as high-side reverse-blocking switch; Q1 serves as active-low enable with fast t_F for fault isolation.

Use Value: −30 V BVDSS and −0.7 A ID rating meet USB PD 3.0 fault tolerance requirements while maintaining <1 ms response time.

Compact DC-DC Buck Converter

Industrial Sensor Node Power Sequencing

Use Scenario: Integrated power stage in 3.3 V/5 V step-down regulators for IoT edge nodes.

IC Role / Device Role / Timing Role: Q1 (low-side sync rectifier), Q2 (high-side switch) form synchronous buck topology with shared gate timing control.

Use Value: Matched thermal tracking ensures balanced current sharing and avoids hot-spot formation during 100% duty-cycle startup.

Use Scenario: Controlled power-up sequencing of analog front-end, MCU, and RF subsystems in battery-powered sensors.

IC Role / Device Role / Timing Role: Q1 enables VDD_IO rail; Q2 controls VDD_ANA with independent gate timing to enforce voltage ramp order.

Use Value: Independent gate terminals allow precise delay insertion via RC networks, meeting ±10 µs sequencing accuracy per IEC 61000-4-2 immunity testing.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMC2038UVT-7	Lower R_DS(ON): 280 mΩ / 600 mΩ @ 4.5 V; higher C_iss (52 pF / 68 pF); same TSOT26 package.	Better efficiency at 1 A+, but increased gate drive demand limits use with weak GPIOs.	Select when conduction loss dominates system efficiency and driver strength ≥4 mA is available.
DMC3025LSD-7	Higher voltage rating (±40 V); larger SO-8 package; R_DS(ON) = 250 mΩ / 450 mΩ @ 4.5 V.	Supports 36 V industrial rails but occupies 3× PCB area; not suitable for ultra-thin devices.	Choose for 24 V systems requiring surge margin and thermal headroom beyond TSOT26 limits.

Compared with DMC3732UVT, DMC2038UVT offers lower conduction loss at cost of higher gate charge, while DMC3025LSD trades miniaturization for higher voltage robustness and thermal capacity - making DMC3732UVT optimal for space- and voltage-constrained 3.3–12 V portable power stages.

Availability

DMC3732UVT is available at Aetrix Electronics and suitable for LED backlighting, USB-C load switching, and compact DC-DC converter designs requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for DMC3732UVT 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-efficiency power management, signal integrity, and connectivity solutions for industrial, computing, and consumer markets.

The DMC3732UVT belongs to Diodes' complementary MOSFET product line, engineered specifically for minimizing board space and conduction loss in low-voltage, logic-level-driven power switches and synchronous rectifiers.

FAQ

What is the maximum safe operating voltage for DMC3732UVT's gate terminals?

The absolute maximum gate-source voltage (V_GSS) is ±8 V for both Q1 and Q2 channels, as specified in the Maximum Ratings table. Exceeding this risks oxide breakdown and permanent gate damage. For reliable 3.3 V or 5 V logic interfacing, no external gate clamping is required due to built-in Zener protection in Diodes' process.

Can DMC3732UVT be used in a synchronous buck configuration without external gate drivers?

Yes - its logic-level thresholds (V_GS(TH) = 0.45–0.95 V for Q1, −0.5 to −1.1 V for Q2) allow direct connection to standard microcontroller GPIOs. However, for >200 kHz operation, a dedicated dual-channel driver (e.g., DIODES AP22802) is recommended to ensure clean 0 V/5 V transitions and minimize shoot-through risk.

How does thermal coupling between Q1 and Q2 affect safe operating area (SOA) in pulsed applications?

Thermal coupling causes mutual heating: Q2 dissipation raises Q1's junction temperature and vice versa. The datasheet SOA curves (Figures 12 and 24) assume single-channel operation; for simultaneous switching, derate total power by 15% or limit pulse duty cycle to ≤1% to maintain T_J < 135°C per channel under worst-case ambient.

Is DMC3732UVT suitable for automotive applications?

The standard DMC3732UVT is not AEC-Q101 qualified. An automotive-grade variant, DMC3732UVTQ, is available with full qualification, enhanced HTOL testing, and PPAP documentation - required for under-hood or safety-critical vehicle subsystems.

DMC3732UVT-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: SOT-23-6 Thin, TSOT-23-6

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: MOSFET (Metal Oxide)

Configuration:: N and P-Channel Complementary

FET Feature:: -

Drain to Source Voltage (Vdss):: 30V

Current - Continuous Drain (Id) @ 25°C:: 1.1A (Ta), 700mA (Ta)

Rds On (Max) @ Id, Vgs:: 460mOhm @ 200mA, 4.5V, 1Ohm @ 400mA, 4.5V

Vgs(th) (Max) @ Id:: 950mV @ 250µA, 1.1V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 0.9nC @ 4.5V, 1.6nC @ 8V

Input Capacitance (Ciss) (Max) @ Vds:: 40.8pF @ 25V, 54pF @ 15V

Power - Max:: 540mW

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TSOT-26

DMC3732UVT-7 FAQ

1.How can I place an order for DMC3732UVT-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMC3732UVT-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 DMC3732UVT-7 reliable?

The price and inventory of DMC3732UVT-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMC3732UVT-7 is usually 5 days.

3.What payment methods are accepted for DMC3732UVT-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMC3732UVT-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMC3732UVT-7?

DMC3732UVT-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMC3732UVT-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 DMC3732UVT-7?

For technical support, including DMC3732UVT-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMC3732UVT-7 requirements.

6.How does Aetrix verify that DMC3732UVT-7 is sourced from the original manufacturer or authorized distributors?

All DMC3732UVT-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 DMC3732UVT-7 meets industry standards.

7.What is the process for return or replacement of DMC3732UVT-7?

All DMC3732UVT-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMC3732UVT-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 DMC3732UVT-7 part is unused and in its original packaging.

Return procedure for DMC3732UVT-7:

1.Submit a request within 90 days.

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

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