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Diodes Incorporated DMG2305UXQ-13
- Part No.:
- DMG2305UXQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DMG2305UXQ-13.pdf
- Description:
- MOSFET P-CH 20V 4.2A SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:9,231
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Product details
Overview
DMG2305UXQ-13 from Diodes Incorporated is a P-channel enhancement-mode MOSFET rated for -20V VDSS, 52 mΩ RDS(ON) at VGS = -4.5V, and -5.0A continuous drain current at TA = +25°C in SOT23 package. It is AEC-Q101 qualified, PPAP-capable, and designed for automotive power management including backlighting, DC-DC converters, and motor control.
For engineers reviewing the DMG2305UXQ-13 datasheet, DMG2305UXQ-13 pinout, DMG2305UXQ-13 application, or DMG2305UXQ-13 equivalent, key selection criteria include its low on-resistance at low gate drive (-2.5V), fast switching (tD(OFF) = 79.3 ns), thermal resistance (RθJA = 90 °C/W), and automotive qualification status.
Technical Context
This MOSFET operates as a high-side load switch or synchronous rectifier in automotive power rails. Its gate threshold voltage range (-0.5 V to -0.9 V) enables reliable turn-on with low-voltage logic controllers, while its low input capacitance (Ciss = 808 pF) supports efficient high-frequency switching in DC-DC topologies.
The device uses a planar trench-gate structure optimized for low RDS(ON) × QG figure-of-merit (≈52 mΩ × 10.2 nC). Its thermal design targets junction temperatures up to +150°C, validated under AEC-Q101 stress conditions including HTRB, TC, and UHAST.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | -20 V - Withstands reverse-biased drain-source voltage up to automotive battery transients (e.g., load dump). |
| RDS(ON) | 52 mΩ @ VGS = -4.5V - Enables <100 mW conduction loss at 2.2 A, critical for thermally constrained SOT23 layouts. |
| ID (continuous) | -5.0 A @ TA = +25°C - Supports medium-power loads such as LED strings or small BLDC gate drivers. |
| QG | 10.2 nC - Low gate charge reduces driver power and enables >500 kHz PWM operation without excessive gate drive loss. |
| Ciss | 808 pF - Limits Miller effect during high dv/dt switching, improving noise immunity in noisy automotive environments. |
| TJ max | +150°C - Meets AEC-Q101 temperature requirements for under-hood applications. |
| RθJA | 90 °C/W - Defines thermal derating curve on standard FR-4 PCB; requires copper pour for >2 A steady-state use. |
Pinout & Package
SOT23 package: 3-pin surface-mount plastic case, 2.4 mm × 1.3 mm footprint, 1.0 mm height, matte tin-plated copper leadframe, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Source) | Current return path for P-channel conduction | Connected to higher potential rail; serves as reference for gate drive and internal body diode cathode. |
| 2 (Gate) | Control terminal for channel inversion | Accepts negative VGS relative to source; low Ciss enables fast edge rates with minimal driver strength. |
| 3 (Drain) | Current output node | Connected to load; body diode anode allows reverse-current freewheeling in buck or H-bridge configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(ON) at -2.5V VGS | 100 mΩ - Enables direct interface with 3.3V or 2.5V microcontroller GPIO without level-shifting. |
| AEC-Q101 qualification | Validated per stress test group A–E - Ensures reliability for automotive safety-critical subsystems (e.g., ADAS lighting). |
| Fast switching speed | tD(OFF) = 79.3 ns - Reduces transition losses in high-frequency DC-DC converters (e.g., 1–2 MHz buck regulators). |
| Green packaging | Halogen- and antimony-free, RoHS 3 compliant - Meets EU ELV and OEM sustainability mandates for vehicle production. |
| Low thermal resistance | RθJC = 33 °C/W - Facilitates heat transfer to PCB copper when mounted with thermal pad or via stitching. |
Applications
| Automotive LED Backlighting | Automotive DC-DC Converter High-Side Switch |
|---|---|
Use Scenario: Driving 12V LED arrays in instrument clusters and center displays with PWM dimming. IC Role / Device Role: High-side constant-current switch controlling LED cathode return path. Use Value: 52 mΩ RDS(ON) limits power loss to <250 mW at 2.2 A, enabling compact SOT23 placement near LEDs without heatsink. | Use Scenario: Synchronous rectification in 12V-to-5V/3.3V buck converters for infotainment ECUs. IC Role / Device Role: Low-side synchronous FET replacing Schottky diode in buck topology. Use Value: 100 mΩ RDS(ON) at -2.5V gate drive matches typical controller output swing, improving efficiency by ≥3% over diode solution. |
| Automotive Motor Driver Half-Bridge Low-Side | Automotive Power Distribution Load Switch |
Use Scenario: Driving brushed DC motors in HVAC actuators and seat adjusters. IC Role / Device Role: Low-side switch in half-bridge configuration with external high-side P-FET. Use Value: Fast tF = 34.7 ns ensures clean commutation at 20 kHz PWM, minimizing audible noise and EMI. | Use Scenario: Controlled 12V power enable for telematics modules and camera systems. IC Role / Device Role: Inrush-limited, fault-protected high-side power switch. Use Value: AEC-Q101 qualification and -55°C to +150°C operating range ensure robustness across vehicle lifecycle and environmental extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar P-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2053UFB-7 | RDS(ON) = 45 mΩ @ -4.5V; SOT23-3L package; lower QG (7.5 nC) | Better efficiency at high frequency but lower ID rating (-3.8 A) | Select for space-constrained, high-switching-frequency designs where peak current ≤3.8 A. |
| SI2305DS-T1-E3 | RDS(ON) = 55 mΩ @ -4.5V; same SOT23; no AEC-Q101 qualification | Cost-optimized for non-automotive industrial use only | Select only for non-automotive applications where AEC-Q101 compliance is not required. |
Compared with DMN2053UFB-7 and SI2305DS-T1-E3, the DMG2305UXQ-13 uniquely balances AEC-Q101 qualification, -5.0 A current capability, and 52 mΩ on-resistance-making it optimal for automotive power switches requiring both reliability and medium-power handling in SOT23.
Availability
DMG2305UXQ-13 is available at Aetrix Electronics and suitable for automotive LED backlighting, DC-DC converter high-side switching, and motor control applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DMG2305UXQ-13 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, manufacturing, and sales operations across Asia, Europe, and North America.
The DMG2305UXQ belongs to Diodes' Automotive-Grade Power MOSFET product line, engineered specifically for AEC-Q101 compliance, high-temperature operation, and low-RDS(ON) performance in vehicle power management systems.
FAQ
What is the maximum safe operating junction temperature for DMG2305UXQ-13?
The absolute maximum junction temperature is +150°C, as specified in the Absolute Maximum Ratings table. Operation above this limit risks permanent parametric shift or catastrophic failure. Derating curves in Figure 9 define safe current limits versus ambient temperature and pulse width, with DC operation limited to 1.4 W at TA = +25°C on standard FR-4 board.
Does DMG2305UXQ-13 include an integrated body diode, and what are its forward characteristics?
Yes, it features an inherent parasitic body diode with anode at the source and cathode at the drain. The diode forward voltage is approximately 1.0 V at -2 A (Figure 8), supporting freewheeling in buck or flyback topologies. Its reverse recovery time is not characterized, so it is not recommended for high-speed synchronous rectification without external snubbing.
Can DMG2305UXQ-13 be used with 3.3V logic-level gate drive?
Yes - its gate threshold voltage (VGS(TH)) ranges from -0.5 V to -0.9 V, and RDS(ON) is specified at -2.5V VGS (100 mΩ). A 3.3V logic output referenced to source can deliver -3.3V VGS, ensuring full enhancement and <70 mΩ on-resistance, suitable for medium-current switching.
What is the moisture sensitivity level (MSL) and reflow profile recommendation for DMG2305UXQ-13?
The device is MSL Level 1 per J-STD-020D, meaning it may be stored indefinitely at ≤30°C/60% RH and subjected to unlimited floor life before reflow. Standard Pb-free reflow profile applies: peak temperature 260°C, time above 217°C ≤60 seconds, ramp rate ≤3°C/s. No pre-bake is required.
DMG2305UXQ-13 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):
- 20 V
- Current - Continuous Drain (Id) @ 25°C:
- 4.2A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 1.8V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 52mOhm @ 4.2A, 4.5V
- Vgs(th) (Max) @ Id:
- 900mV @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 10.2 nC @ 4.5 V
- Vgs (Max):
- ±8V
- Input Capacitance (Ciss) (Max) @ Vds:
- 808 pF @ 15 V
- FET Feature:
- -
- Power Dissipation (Max):
- 1.4W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DMG2305UXQ-13 FAQ
1.How can I place an order for DMG2305UXQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMG2305UXQ-13 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 DMG2305UXQ-13 reliable?
The price and inventory of DMG2305UXQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMG2305UXQ-13 is usually 5 days.
3.What payment methods are accepted for DMG2305UXQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMG2305UXQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMG2305UXQ-13?
DMG2305UXQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMG2305UXQ-13 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 DMG2305UXQ-13?
For technical support, including DMG2305UXQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMG2305UXQ-13 requirements.
6.How does Aetrix verify that DMG2305UXQ-13 is sourced from the original manufacturer or authorized distributors?
All DMG2305UXQ-13 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 DMG2305UXQ-13 meets industry standards.
7.What is the process for return or replacement of DMG2305UXQ-13?
All DMG2305UXQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMG2305UXQ-13, 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 DMG2305UXQ-13 part is unused and in its original packaging.
Return procedure for DMG2305UXQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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