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

Diodes Incorporated DMP21D0UFB-7

Name: DMP21D0UFB-7
Brand: Diodes Incorporated
SKU: DMP21D0UFB-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DMP21D0UFB-7

Manufacturer:: Diodes Incorporated

Category:: FETs, MOSFETs

Package:: 3-UFDFN

Datasheet:: DMP21D0UFB-7.pdf

Description:: MOSFET P-CH 20V 770MA 3DFN

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Product details

Overview

DMP21D0UFB-7 from Diodes Incorporated is a 20V P-channel enhancement-mode MOSFET in a 1.0×0.6mm X1-DFN1006-3 package, with R_DS(ON) = 495mΩ @ V_GS = −4.5V, I_D = −0.77A, and AEC-Q101 qualification-designed for space-constrained load switching in portable electronics power rails.

For engineers reviewing the DMP21D0UFB-7 datasheet, DMP21D0UFB-7 pinout, DMP21D0UFB-7 application, or DMP21D0UFB-7 equivalent, key selection criteria include low gate threshold (−0.7V typ), ESD-protected gate, ultra-small footprint (0.6mm²), thermal resistance of 293°C/W on FR-4, and −55°C to +150°C operating range.

Technical Context

This MOSFET operates as a single P-channel switch with source-connected substrate and integrated gate protection diode. Its low V_GS(TH) (−0.5V to −1.0V) enables direct interface with 1.8V/2.5V logic, while its R_DS(ON) scalability across V_GS (960mΩ @ −1.8V, 495mΩ @ −4.5V) supports flexible biasing in battery-powered systems.

Dynamic performance is characterized by fast switching (t_D(ON) = 7.1ns, t_F = 18.5ns), low gate charge (Q_g = 1.0nC @ −4.5V), and controlled capacitance profile (C_iss = 76.5pF, C_rss = 10.7pF), enabling efficient operation in high-frequency DC-DC converter synchronous rectification and load-switching topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	−20V - supports input rails up to 18V with 10% derating for automotive and industrial portable systems
R_DS(ON)	495mΩ @ V_GS = −4.5V - enables <100mW conduction loss at 0.4A load current
I_D (max)	−0.77A @ T_A = +25°C - suitable for low-power peripheral enable/disable (e.g., USB port, sensor rail)
V_GS(TH)	−0.7V typ - ensures turn-on with 1.8V GPIO without level-shifting circuitry
Q_g	1.0nC @ V_GS = −4.5V - reduces gate drive power and switching transition time in battery-sensitive designs
T_J range	−55°C to +150°C - qualified for extended-temperature portable and automotive cabin applications
C_iss	76.5pF - limits Miller-induced shoot-through risk in high-side switching configurations

Pinout & Package

Package: X1-DFN1006-3 (1.0mm × 0.6mm × 0.47–0.53mm height), thermally enhanced leadframe with NiPdAu plating, moisture sensitivity level 1, UL 94V-0 molding compound.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Drain)	Main current path output terminal	Connected to load side; exposed pad (not electrically isolated) serves as thermal path to PCB copper
Pin 2 (Source)	Reference node for gate control and current return	Internally tied to substrate; must be connected to system ground or supply return for proper biasing
Pin 3 (Gate)	Control electrode for channel modulation	ESD-protected input; requires ≤±8V drive; low threshold enables 1.8V logic compatibility

Key Features

Feature	Design Value
Ultra-compact footprint	0.6mm² area - saves >92% board space vs. SOT-23, critical for wearables and hearing aids
AEC-Q101 qualification	High-reliability stress testing for automotive cabin modules and industrial edge sensors
ESD-protected gate	HBM ≥2kV - eliminates need for external gate protection in handheld device assembly lines
Green construction	Halogen- and antimony-free, RoHS 3 compliant - meets EU environmental compliance for consumer shipments
Low thermal resistance	R_θJA = 293°C/W (FR-4, 2oz Cu) - allows 430mW continuous dissipation without thermal derating in minimal layout

Applications

USB Load Switch

Smartphone Power Rail Control

Use Scenario: Enabling/disabling 5V USB peripheral power in mobile accessories with strict size constraints.

IC Role / Device Role / Timing Role: High-side load switch controlling VBUS delivery; operates in static on/off mode with no PWM timing requirements.

Use Value: 495mΩ R_DS(ON) limits voltage drop to <250mV at 0.5A, preserving USB spec compliance; 0.6mm² footprint fits within tight USB-C connector keepouts.

Use Scenario: Isolating camera or display sub-rail during sleep mode in smartphones to reduce standby current.

IC Role / Device Role / Timing Role: Low-leakage P-channel switch placed between PMIC output and subsystem input; activated by AP GPIO.

Use Value: −1µA I_DSS at −20V minimizes quiescent drain; −0.7V V_GS(TH) ensures full turn-on with 1.8V AP sleep-control signal.

Wireless Earbud Battery Protection

Industrial Sensor Node Power Gating

Use Scenario: Disconnecting charging circuitry from Li-ion cell during overvoltage or thermal fault conditions in true wireless stereo earbuds.

IC Role / Device Role / Timing Role: Reverse-polarity protected high-side disconnect switch; driven by dedicated fuel-gauge IC fault pin.

Use Value: Integrated gate protection diode prevents latch-up during transient reverse-bias events; AEC-Q101 qualification ensures reliability under repeated thermal cycling.

Use Scenario: Power gating LoRaWAN or BLE sensor nodes during deep-sleep intervals to extend battery life beyond 5 years.

IC Role / Device Role / Timing Role: Always-on, low-I_Q enable switch placed upstream of LDO; toggled infrequently by microcontroller wake signal.

Use Value: −55°C to +150°C rating supports outdoor deployment; 0.001g weight avoids mechanical stress on flex PCB interconnects.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DMN2016LFG-7	R_DS(ON) = 200mΩ @ −4.5V, larger 2.0×2.0mm DFN package, higher I_D = −3.5A	Better for higher-current rails (>1A); unsuitable where board area <1mm² is mandatory	Select when lower conduction loss outweighs footprint penalty and thermal design permits larger pad layout
AO3401	R_DS(ON) = 55mΩ @ −4.5V, SOT-23 package, no AEC-Q101 or ESD protection	Higher drive capability but lacks reliability features for portable end-equipment certification	Choose only for cost-sensitive, non-certified consumer boards where gate drive voltage ≥3.3V is guaranteed

Compared with DMN2016LFG-7 and AO3401, DMP21D0UFB-7 uniquely balances ultra-miniaturization, AEC-Q101 reliability, and 1.8V logic compatibility-making it optimal for next-generation compact, certified portable electronics where space and robustness are co-constrained.

Availability

DMP21D0UFB-7 is available at Aetrix Electronics and suitable for USB load switching, smartphone power rail control, wireless earbud battery protection, and industrial sensor node power gating requiring stable component supply across high-mix, low-volume production runs.

Supply support for DMP21D0UFB-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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.

This device belongs to Diodes' X1-DFN ultra-miniature MOSFET product line, engineered specifically for space-constrained portable electronics requiring high reliability, low-voltage logic compatibility, and green compliance.

FAQ

What is the maximum continuous drain current for DMP21D0UFB-7 at 85°C ambient?

The maximum continuous drain current is −0.55A at T_A = +85°C with standard FR-4 PCB layout (2oz copper, minimum pad). This derating reflects thermal limitations due to R_θJA = 293°C/W; using thermal vias improves dissipation to −1.17A at 25°C ambient.

Does DMP21D0UFB-7 require an external gate resistor for stability?

No external gate resistor is required for basic on/off switching. The datasheet specifies t_D(ON) and t_F measured with R_G = 6Ω, but the device's low Q_g (1.0nC) and R_g (195Ω) allow direct GPIO driving at ≤1MHz without oscillation-provided PCB trace inductance is minimized.

Can DMP21D0UFB-7 be used in reverse polarity protection circuits?

Yes-it functions as a high-side reverse polarity protector when oriented with source to input and drain to load. Its body diode conducts forward during correct polarity, while the channel blocks reverse current. V_GS(TH) must be referenced to system ground, and gate must be pulled to input voltage via resistor for automatic activation.

Is the exposed thermal pad electrically connected to any terminal?

No-the exposed pad (EP) is not internally connected to Drain, Source, or Gate. It is a thermal-only feature designed to solder directly to PCB copper for heat dissipation. Electrical isolation must be maintained per the recommended pad layout (G1/G2 dimensions) to avoid shorting.

DMP21D0UFB-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 3-UFDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 20 V

Current - Continuous Drain (Id) @ 25°C:: 770mA (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 1.8V, 4.5V

Rds On (Max) @ Id, Vgs:: 495mOhm @ 400mA, 4.5V

Vgs(th) (Max) @ Id:: 1V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 1.5 nC @ 8 V

Vgs (Max):: ±8V

Input Capacitance (Ciss) (Max) @ Vds:: 76.5 pF @ 10 V

FET Feature:: -

Power Dissipation (Max):: 430mW (Ta)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: X1-DFN1006-3

DMP21D0UFB-7 FAQ

1.How can I place an order for DMP21D0UFB-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DMP21D0UFB-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 DMP21D0UFB-7 reliable?

The price and inventory of DMP21D0UFB-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP21D0UFB-7 is usually 5 days.

3.What payment methods are accepted for DMP21D0UFB-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP21D0UFB-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DMP21D0UFB-7?

DMP21D0UFB-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DMP21D0UFB-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 DMP21D0UFB-7?

For technical support, including DMP21D0UFB-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP21D0UFB-7 requirements.

6.How does Aetrix verify that DMP21D0UFB-7 is sourced from the original manufacturer or authorized distributors?

All DMP21D0UFB-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 DMP21D0UFB-7 meets industry standards.

7.What is the process for return or replacement of DMP21D0UFB-7?

All DMP21D0UFB-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMP21D0UFB-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 DMP21D0UFB-7 part is unused and in its original packaging.

Return procedure for DMP21D0UFB-7:

1.Submit a request within 90 days.

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

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