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Diodes Incorporated DMP21D1UTQ-7
- Part No.:
- DMP21D1UTQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- SOT-523
- Datasheet:
-
DMP21D1UTQ-7.pdf
- Description:
- MOSFET BVDSS: 8V~24V SOT523 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:9,193
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Product details
Overview
DMP21D1UTQ-7 from Diodes Incorporated is a P-channel enhancement-mode MOSFET in SOT523 package, rated for -20V VDSS, 710mΩ RDS(ON) at VGS = -4.5V and -0.63A ID, with AEC-Q101 qualification for automotive load switching and DC-DC converter power management.
For engineers reviewing the DMP21D1UTQ-7 datasheet, DMP21D1UTQ-7 pinout, DMP21D1UTQ-7 application, or DMP21D1UTQ-7 equivalent, key selection criteria include low gate threshold (-1.0V max), ESD-protected gate, 33pF Ciss, thermal resistance of 480°C/W, and suitability for space-constrained automotive subsystems requiring high reliability under -55°C to +150°C operation.
Technical Context
This MOSFET operates as a low-side switch in P-channel configuration, leveraging a low VGS(TH) range (-0.5V to -1.0V) for reliable turn-on with 3.3V logic-level gate drive. Its 33pF input capacitance and 1.4nC total gate charge enable fast switching (tD(ON) = 4.6ns, tF = 7.9ns) with minimal drive power.
Thermally, it delivers 0.26W steady-state power dissipation on FR-4 with 2oz copper and minimum pad layout, supported by normalized RDS(ON) stability across -55°C to +150°C junction temperature-critical for under-hood automotive modules and portable power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | -20V - supports 12V automotive systems with margin against transients |
| RDS(ON) | 710mΩ @ VGS = -4.5V - enables <100mW conduction loss at 0.4A load current |
| ID | -0.63A @ TA = +25°C - suitable for low-power load switching in infotainment and sensor modules |
| Ciss | 33pF - reduces gate drive current requirement and improves switching efficiency |
| Qg | 1.4nC - allows clean 1MHz+ PWM control with standard microcontroller GPIO |
| TJ Range | -55°C to +150°C - meets AEC-Q101 thermal stress requirements for engine bay placement |
| RθJA | 480°C/W - defines thermal derating curve on minimal PCB copper area |
Pinout & Package
Package: SOT523 - ultra-small surface-mount package (1.60 × 1.60 × 0.55 mm), optimized for high-density PCB layouts in automotive body electronics and wearables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Source) | Current return path for P-channel conduction | Connected to higher potential rail; requires stable local decoupling when used in load-switch configurations |
| 2 (Gate) | Control electrode for channel formation | ESD-protected; driven directly from 3.3V MCU GPIO without level shifter due to -1.0V VGS(TH) max |
| 3 (Drain) | Load connection terminal | Switches negative-side current flow; routed away from sensitive analog traces to minimize coupling |
Key Features
| Feature | Design Value |
|---|---|
| Low gate threshold voltage | VGS(TH) ≤ -1.0V ensures full enhancement with 3.3V logic, eliminating need for gate driver ICs |
| ESD-protected gate | HBM rating ≥2kV per JESD22-A114 - reduces board-level ESD protection component count |
| Low input capacitance | Ciss = 33pF minimizes gate drive energy and propagation delay in high-frequency PWM |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and ESD stress per AEC specification |
| Green, RoHS-compliant construction | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb) meets IATF16949 manufacturing standards |
Applications
| Automotive Body Control Module (BCM) | USB-C Power Delivery Load Switch |
|---|---|
|
Use Scenario: Controlling power to LED interior lighting and door lock actuators in 12V vehicle electrical architecture. IC Role / Device Role / Timing Role: Low-side P-channel load switch enabling controlled power ramp-up and fault isolation. Use Value: 710mΩ RDS(ON) limits voltage drop to <300mV at 0.4A, preserving LED brightness and actuator torque while meeting AEC-Q101 reliability targets. |
Use Scenario: Enabling/disabling VBUS path in portable USB-C accessories with 3.3V microcontroller supervision. IC Role / Device Role / Timing Role: Logic-level P-MOSFET acting as bidirectional power gate with fast turn-off (<15ns tD(OFF)) for overcurrent response. Use Value: 1.4nC Qg and 33pF Ciss allow sub-microsecond switching under 3.3V drive, supporting USB PD 3.0 fast role swap timing constraints. |
| Industrial Sensor Node Power Management | Medical Wearable Battery Protection |
|
Use Scenario: Isolating power to MEMS pressure and temperature sensors during sleep mode in battery-powered IIoT nodes. IC Role / Device Role / Timing Role: Ultra-low-leakage P-channel switch (IDSS ≤ -1μA) minimizing quiescent current drain. Use Value: -1μA IDSS at -20V VDS extends 200mAh coin-cell life by >12 months in deep-sleep cycles, validated across -40°C to +85°C. |
Use Scenario: Protecting Li-ion cell output in compact wearable health monitors against reverse-current leakage during charging interruption. IC Role / Device Role / Timing Role: Reverse-polarity blocking element placed between battery and PMIC, leveraging intrinsic body diode orientation. Use Value: -0.8V typical VSD forward drop ensures <1% power loss during active discharge, critical for maintaining runtime accuracy in FDA-cleared devices. |
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 | N-channel, 20V, 120mΩ @ VGS = +4.5V, requires high-side gate driver or charge pump | Better RDS(ON) but adds complexity in single-supply systems; not AEC-Q101 qualified | Select only if board space permits driver circuitry and automotive qualification is not required |
| AO3415 | P-channel, 20V, 50mΩ @ VGS = -4.5V, SOT23 package, no AEC-Q101 certification | Lower RDS(ON) but larger footprint (2.9 × 1.3mm vs. 1.6 × 1.6mm) and unqualified for automotive use | Prefer for cost-sensitive industrial designs where AEC-Q101 and miniaturization are not mandatory |
Compared with DMN2016LFG-7 and AO3415, DMP21D1UTQ-7 uniquely combines AEC-Q101 qualification, SOT523 miniaturization, and logic-level gate drive in a single package-making it the only option for space-constrained, safety-critical automotive load switching where qualification and footprint are non-negotiable.
Availability
DMP21D1UTQ-7 is available at Aetrix Electronics and suitable for automotive body electronics, USB-C accessory power management, and medical wearable battery protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DMP21D1UTQ-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 components for automotive, industrial, and consumer markets with ISO/TS 16949 and IATF16949 certified facilities.
This device belongs to Diodes' AEC-Q101-qualified small-signal MOSFET product line, engineered specifically for space-constrained, thermally demanding automotive subsystems requiring robust gate protection and low-threshold logic compatibility.
FAQ
Is DMP21D1UTQ-7 suitable for hot-swap applications?
Yes. With its -1.0V maximum gate threshold voltage, 1.4nC total gate charge, and 7.9ns turn-off fall time, DMP21D1UTQ-7 supports controlled inrush current limiting in hot-swap circuits. Its -0.4A continuous body diode current rating and 2.5A pulsed drain capability further enable transient overload handling without external protection diodes.
What is the maximum PCB copper area needed to achieve the 0.26W power rating?
The 0.26W rating assumes a FR-4 board with 2oz copper and minimum recommended SOT523 pad layout per Diodes' package outline document DS45538. No additional copper pour is required; the specified pad dimensions (E1 = 0.80mm, D = 1.60mm) provide sufficient thermal conduction to meet RθJA = 480°C/W under still-air conditions.
Does DMP21D1UTQ-7 require external gate resistors for EMI suppression?
No external gate resistor is required for basic operation, but a 10Ω series resistor is recommended to dampen ringing caused by 33pF Ciss interacting with PCB trace inductance. This value maintains tF < 10ns while reducing high-frequency spectral content above 100MHz, easing EMC compliance in automotive modules.
Can DMP21D1UTQ-7 be used in linear regulation mode?
No. Its RDS(ON) variation exceeds ±25% across -55°C to +150°C, and safe operating area (SOA) data shows only single-pulse capability above 10ms-indicating insufficient thermal stability for sustained linear operation. It is specified exclusively for switching applications with duty cycles ≤50% and pulse widths ≤10ms.
DMP21D1UTQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- 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:
- 630mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 1.8V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 710mOhm @ 400mA, 4.5V
- Vgs(th) (Max) @ Id:
- 1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 1.4 nC @ 4.5 V
- Vgs (Max):
- ±8V
- Input Capacitance (Ciss) (Max) @ Vds:
- 33 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 260mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
DMP21D1UTQ-7 FAQ
1.How can I place an order for DMP21D1UTQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMP21D1UTQ-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 DMP21D1UTQ-7 reliable?
The price and inventory of DMP21D1UTQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP21D1UTQ-7 is usually 5 days.
3.What payment methods are accepted for DMP21D1UTQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP21D1UTQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMP21D1UTQ-7?
DMP21D1UTQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMP21D1UTQ-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 DMP21D1UTQ-7?
For technical support, including DMP21D1UTQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP21D1UTQ-7 requirements.
6.How does Aetrix verify that DMP21D1UTQ-7 is sourced from the original manufacturer or authorized distributors?
All DMP21D1UTQ-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 DMP21D1UTQ-7 meets industry standards.
7.What is the process for return or replacement of DMP21D1UTQ-7?
All DMP21D1UTQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMP21D1UTQ-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 DMP21D1UTQ-7 part is unused and in its original packaging.
Return procedure for DMP21D1UTQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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