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

Diodes Incorporated DMP31D7LDW-7

Name: DMP31D7LDW-7
Brand: Diodes Incorporated
SKU: DMP31D7LDW-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMP31D7LDW-7

Manufacturer:: Diodes Incorporated

Category:: FET, MOSFET Arrays

Package:: 6-TSSOP, SC-88, SOT-363

Datasheet:: DMP31D7LDW-7.pdf

Description:: MOSFET 2P-CH 0.55A SOT363

Quantity:: RFQ Add To RFQ list

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Inventory:1,775

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Product details

Overview

DMP31D7LDW-7 from Diodes Incorporated is a dual P-channel enhancement-mode MOSFET in SOT363 package, rated for -30V V_DSS, 0.9Ω R_DS(ON) @ V_GS = -10V, and -0.55A continuous drain current at +25°C - designed for compact, high-efficiency power management in space-constrained DC-DC converters and motor control circuits.

For engineers reviewing the DMP31D7LDW-7 datasheet, DMP31D7LDW-7 pinout, DMP31D7LDW-7 application, or DMP31D7LDW-7 equivalent, key selection criteria include verified dual-P-channel topology, gate threshold voltage (-1 to -2.6V), low input capacitance (19pF), ESD-protected gate, and thermal resistance (301°C/W with enhanced pad layout).

Technical Context

This device integrates two matched P-channel MOSFETs in a single SOT363 package with independent source, gate, and drain terminals per channel. Each channel features a body diode with -0.8 to -1.2V forward voltage and supports bidirectional current flow under synchronous rectification conditions.

It operates with gate drive voltages from -4.5V to -10V, delivering R_DS(ON) of 1.7Ω at -4.5V and 0.9Ω at -10V, while maintaining fast switching performance (t_D(ON) = 30ns, t_F = 31ns) and low total gate charge (0.36nC @ -4.5V).

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	-30V - maximum drain-source blocking voltage before avalanche conduction
R_DS(ON) @ V_GS = -10V	0.9Ω - on-resistance enabling ≤0.2W conduction loss at -0.42A
R_DS(ON) @ V_GS = -4.5V	1.7Ω - usable with 3.3V/5V logic-level gate drive in low-power systems
I_D Continuous	-0.55A @ +25°C - steady-state current handling with FR-4 board and 1-inch copper pad
C_iss	19pF - low input capacitance reducing gate drive power and improving switching efficiency
Q_g @ V_GS = -4.5V	0.36nC - minimal gate charge enabling fast turn-on with low driver current demand
T_J Range	-55°C to +150°C - qualified for industrial and extended-temperature operation

Pinout & Package

Package: SOT363 - surface-mount, 6-pin, dual-channel discrete package with exposed thermal pad (no internal thermal slug); dimensions: 2.15mm × 2.10mm × 0.95mm (L × W × H), moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
1 (G1)	Gate of Q1	Control terminal for first P-channel MOSFET; accepts negative gate bias relative to source
2 (S1)	Source of Q1	Reference node for Q1; tied to higher potential in high-side switch configuration
3 (D1)	Drain of Q1	Current output node for Q1; connects to load or power rail in buck/synchronous rectifier topologies
4 (D2)	Drain of Q2	Current output node for second P-channel MOSFET; electrically isolated from D1
5 (S2)	Source of Q2	Reference node for Q2; may be tied to common rail or independently biased
6 (G2)	Gate of Q2	Independent control terminal for Q2; enables dual-channel timing or phase control

Key Features

Feature	Design Value
Low R_DS(ON) at -4.5V	1.7Ω - enables direct interface with 3.3V microcontroller GPIO without level-shifting
ESD-protected gate	±20V V_GSS rating with integrated protection - eliminates need for external gate Zener clamps
Low C_iss and C_oss	19pF / 16pF - reduces switching losses and EMI in high-frequency DC-DC converters (>1MHz)
Green, RoHS-compliant construction	Halogen- and antimony-free molding compound (<900ppm Br+Cl, <1000ppm Sb) - meets automotive and industrial environmental mandates
Thermal performance with standard layout	R_θJA = 301°C/W with 1-inch² copper pad - supports 0.4W dissipation in ambient up to +70°C

Applications

Motor Control

DC-DC Converter

Use Scenario: Bidirectional H-bridge driver for small brushed DC motors in portable medical pumps and precision actuators.

IC Role / Device Role / Timing Role: Dual high-side switch controlling motor direction and braking via complementary P-channel switching.

Use Value: Low R_DS(ON) minimizes I²R heating during stall conditions; fast turn-off (31ns fall time) prevents shoot-through in PWM-driven bridges.

Use Scenario: Synchronous rectifier in 5V-to-3.3V buck converter for FPGA I/O banks and low-voltage microcontrollers.

IC Role / Device Role / Timing Role: Secondary-side switch replacing Schottky diode to improve conversion efficiency above 85% at light loads.

Use Value: 0.36nC gate charge enables clean switching at 2MHz; body diode V_SD = -0.8V ensures low forward drop during dead-time conduction.

Power Management

Load Switching

Use Scenario: Dual-rail power sequencing in industrial sensor nodes requiring independent enable control for analog and digital subsystems.

IC Role / Device Role / Timing Role: Independent high-side load switches managing power-up order and fault isolation between supply domains.

Use Value: Matched channel characteristics ensure consistent turn-on delay (30ns) and thermal response across rails; -55°C to +150°C rating supports wide ambient operation.

Use Scenario: USB-C port power delivery path control in portable test equipment with overcurrent and thermal foldback requirements.

IC Role / Device Role / Timing Role: Dual-channel hot-swap switch providing inrush limiting and reverse-current blocking per port.

Use Value: Gate threshold (-2.2V typ.) allows precise enable control using comparator outputs; ESD protection withstands ±8kV contact discharge per IEC 61000-4-2.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN3026LSD-13	Single N-channel + P-channel combo in SO-8; R_DS(ON) = 2.6Ω @ -4.5V (P-ch), higher package thermal resistance (350°C/W)	Requires external level shift for high-side P-ch drive; unsuitable for ultra-compact layouts	Prefer when mixed N/P topology simplifies gate driver design and board area is not constrained
SI3483DV-T1-GE3	Dual P-channel in SC-70-6; R_DS(ON) = 1.2Ω @ -4.5V; lower I_D rating (-0.35A) and higher R_θJA (450°C/W)	Limited to sub-200mW power handling; not recommended for sustained >0.3A loads	Select only for space-critical, low-current bias networks where thermal margin exceeds 50°C

Compared with DMN3026LSD-13 and SI3483DV-T1-GE3, DMP31D7LDW-7 delivers superior R_DS(ON) at -4.5V (1.7Ω vs. 2.6Ω/1.2Ω), lower C_iss (19pF vs. 25pF/22pF), and better thermal performance (301°C/W vs. 350°C/W/450°C/W), making it optimal for thermally demanding, high-efficiency dual-switch applications.

Availability

DMP31D7LDW-7 is available at Aetrix Electronics and suitable for motor control, DC-DC converter, and power management applications requiring stable component supply, long-term lifecycle support, and traceable green-material compliance.

Supply support for DMP31D7LDW-7 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 industrial, computing, and consumer markets.

DMP31D7LDW-7 belongs to Diodes' PowerMOS™ family, engineered specifically for space-constrained, high-efficiency power switching in battery-powered and thermally sensitive applications.

FAQ

What is the maximum safe operating junction temperature for DMP31D7LDW-7?

The absolute maximum junction temperature is +150°C, and the device is characterized for full electrical performance across -55°C to +150°C. Derating begins at +70°C ambient when mounted on a 1-inch² copper pad; thermal resistance drops from 433°C/W (standard FR-4) to 301°C/W (enhanced layout), supporting 0.4W continuous dissipation at +70°C ambient.

Can DMP31D7LDW-7 be used in synchronous rectification mode?

Yes - each channel includes an intrinsic body diode with V_SD = -0.8V to -1.2V at -0.23A, and low R_DS(ON) enables efficient synchronous rectification in buck converters. The matched dual structure allows interleaved or parallel operation, and fast switching (t_F = 31ns) minimizes dead-time losses without requiring external diode clamping.

Is the SOT363 package lead-free and RoHS compliant?

Yes - DMP31D7LDW-7 uses matte tin annealed over copper leadframe and halogen/antimony-free green molding compound, fully compliant with EU RoHS Directive 2015/863/EU (RoHS 3). Lead content is below detection limits, and bromine/chlorine totals are <1500ppm with antimony <1000ppm, certified per Diodes' quality documentation.

How does gate threshold voltage affect drive compatibility with 3.3V microcontrollers?

V_GS(TH) ranges from -1.0V to -2.6V (typ. -2.2V), ensuring reliable turn-on with 3.3V logic: applying 0V gate and 3.3V source yields V_GS = -3.3V, well below threshold. At -4.5V drive, R_DS(ON) is 1.7Ω - sufficient for ≤0.2A loads with <70mW conduction loss, validated across -55°C to +125°C.

DMP31D7LDW-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 6-TSSOP, SC-88, SOT-363

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: MOSFET (Metal Oxide)

Configuration:: 2 P-Channel (Dual)

FET Feature:: -

Drain to Source Voltage (Vdss):: -

Current - Continuous Drain (Id) @ 25°C:: 550mA (Ta)

Rds On (Max) @ Id, Vgs:: 900mOhm @ 420mA, 10V

Vgs(th) (Max) @ Id:: 2.6V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: -

Input Capacitance (Ciss) (Max) @ Vds:: -

Power - Max:: -

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-363

DMP31D7LDW-7 FAQ

1.How can I place an order for DMP31D7LDW-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMP31D7LDW-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 DMP31D7LDW-7 reliable?

The price and inventory of DMP31D7LDW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP31D7LDW-7 is usually 5 days.

3.What payment methods are accepted for DMP31D7LDW-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP31D7LDW-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMP31D7LDW-7?

DMP31D7LDW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMP31D7LDW-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 DMP31D7LDW-7?

For technical support, including DMP31D7LDW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP31D7LDW-7 requirements.

6.How does Aetrix verify that DMP31D7LDW-7 is sourced from the original manufacturer or authorized distributors?

All DMP31D7LDW-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 DMP31D7LDW-7 meets industry standards.

7.What is the process for return or replacement of DMP31D7LDW-7?

All DMP31D7LDW-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMP31D7LDW-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 DMP31D7LDW-7 part is unused and in its original packaging.

Return procedure for DMP31D7LDW-7:

1.Submit a request within 90 days.

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

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