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Diodes Incorporated DMP4051LK3Q-13
- Part No.:
- DMP4051LK3Q-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
DMP4051LK3Q-13.pdf
- Description:
- MOSFET BVDSS: 31V~40V TO252 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:9,037
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Product details
Overview
DMP4051LK3Q-13 from Diodes Incorporated is a 40V P-channel enhancement-mode MOSFET in TO252 (DPAK) package, rated for -10.5A continuous drain current at VGS = -10V, with RDS(ON) = 51 mΩ, optimized for high-efficiency DC-DC converters and automotive backlighting power stages.
For engineers reviewing the DMP4051LK3Q-13 datasheet, DMP4051LK3Q-13 pinout, DMP4051LK3Q-13 application, or DMP4051LK3Q-13 equivalent, key selection criteria include its AEC-Q101 qualification, low RDS(ON) at -4.5V gate drive, UIS-rated avalanche robustness, and thermal performance on 25mm × 25mm 1oz FR-4 PCB.
Technical Context
This P-channel MOSFET operates as a high-side switch in synchronous buck regulators and LED driver circuits, leveraging its -40V VDSS, -3.0V maximum VGS(TH), and fast switching (tF = 14.3 ns, tD(OFF) = 25.1 ns) to minimize conduction and switching losses.
Its body diode exhibits VSD = -0.98V at -12A and QRR = 841 nC, supporting efficient reverse-recovery in freewheeling paths; thermal resistance RθJA = 58.4°C/W on minimal 25mm × 25mm 1oz FR-4 layout enables compact thermal design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | -40 V - Withstands up to 40V drain-source reverse bias in high-side switching configurations. |
| RDS(ON) | 51 mΩ @ VGS = -10V - Enables <1.2W conduction loss at 7A, critical for thermally constrained DC-DC stages. |
| ID (cont) | -10.5 A @ TA = +25°C - Supports high-current load switching in automotive display power rails. |
| EAS | 50 mJ - Rated single-pulse avalanche energy ensures reliability under inductive load turn-off stress. |
| Qg | 14 nC - Low gate charge reduces driver power demand and speeds up gate control in PWM applications. |
| tR/tF | 14.1 ns / 14.3 ns - Fast edge rates minimize switching transition time and associated losses. |
| TJ Range | -55°C to +150°C - Qualified for under-hood automotive environments per AEC-Q101 requirements. |
Pinout & Package
Package: TO252 (DPAK), surface-mount, 3-terminal plastic package with exposed drain pad for thermal dissipation; UL 94V-0 rated molding compound, matte tin-plated copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Gate) | Control input | Receives negative gate drive relative to source to turn on P-channel device; threshold range -1.0V to -3.0V. |
| 2 (Drain) | High-side power output | Connected to input rail; carries full load current and dissipates heat via exposed copper pad. |
| 3 (Source) | Reference node | Serves as return path and voltage reference for gate drive; tied to load or ground in high-side configuration. |
Key Features
| Feature | Design Value |
|---|---|
| 100% UIS tested | Guarantees avalanche ruggedness to 50 mJ without derating, eliminating need for external snubbers in inductive loads. |
| Low RDS(ON) at -4.5V | 85 mΩ enables logic-level gate drive compatibility with 5V microcontrollers in space-constrained modules. |
| AEC-Q101 qualified | Validated for automotive use including PPAP capability, IATF 16949 manufacturing, and change control compliance. |
| Green construction | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb), RoHS 3 compliant, UL 94V-0 flammability rating. |
Applications
| Automotive LCD Backlighting | Industrial DC-DC Buck Converter |
|---|---|
|
Use Scenario: High-side current regulation for LED strings in instrument cluster and infotainment displays. IC Role / Device Role / Timing Role: P-channel MOSFET used as synchronous rectifier and current-switching element in boost-buck hybrid topology. Use Value: Low RDS(ON) minimizes power loss in 12V-to-24V LED supply; AEC-Q101 qualification ensures long-term reliability across temperature cycles. |
Use Scenario: Input-side high-side switch in 48V-to-12V isolated or non-isolated buck converters for factory automation controllers. IC Role / Device Role / Timing Role: Main power switch controlling duty-cycle-dependent energy transfer; operates at 200–500 kHz PWM frequency. Use Value: 14 nC Qg and fast tF reduce switching losses at high frequency; RθJA = 58.4°C/W supports operation without heatsink on standard PCB area. |
| USB-C Power Delivery Sink | Server VRM High-Side Switch |
|
Use Scenario: Reverse-polarity protection and inrush limiting in USB-C PD sink ports requiring bidirectional fault tolerance. IC Role / Device Role / Timing Role: P-channel MOSFET configured as ideal diode controller interface with fast turn-on/off response. Use Value: Body diode VSD = -0.98V at -12A and low QRR = 841 nC enable efficient reverse conduction during hot-swap events. |
Use Scenario: High-side switch in multiphase VRMs supplying core voltage to Xeon or EPYC processors in data center servers. IC Role / Device Role / Timing Role: Synchronous rectifier in 48V-to-1V step-down stage, operating with precise gate timing synchronized to PWM controller. Use Value: -40V VDSS headroom accommodates transient overshoots; 100% UIS testing prevents failure during phase-current imbalance faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar P-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMT4001LPSQ-13 | RDS(ON) = 42 mΩ @ -10V, but higher Qg = 21 nC; same TO252 package and AEC-Q101 rating. | Better conduction efficiency at high current, but increased gate drive loss at >300 kHz switching. | Select when minimizing I²R loss dominates over switching loss, e.g., low-frequency battery disconnect. |
| IPB40P04P4L-11 | Higher VDSS = -40V, lower RDS(ON) = 36 mΩ @ -10V, but TO263 package and no AEC-Q101 documentation. | Superior thermal performance on large copper areas, but lacks automotive qualification and traceability. | Prefer for industrial DC-DC where qualification is not required and board space allows TO263 footprint. |
Compared with DMT4001LPSQ-13 and IPB40P04P4L-11, DMP4051LK3Q-13 offers balanced trade-offs: moderate RDS(ON), low Qg, verified AEC-Q101 compliance, and TO252 thermal scalability-making it optimal for cost-sensitive, space-constrained automotive power stages requiring production traceability.
Availability
DMP4051LK3Q-13 is available at Aetrix Electronics and suitable for automotive LCD backlighting, industrial DC-DC buck converters, and USB-C power delivery sink protection requiring stable component supply across multi-year production cycles.
Supply support for DMP4051LK3Q-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, specializing in high-reliability power management, signal integrity, and protection solutions for automotive, industrial, and computing markets.
DMP4051LK3Q-13 belongs to Diodes' AEC-Q101-qualified P-channel MOSFET product line, engineered specifically for high-efficiency, thermally constrained automotive power switches in lighting, body electronics, and ADAS subsystems.
FAQ
Is DMP4051LK3Q-13 qualified for automotive applications?
Yes, DMP4051LK3Q-13 is AEC-Q101 qualified, manufactured in IATF 16949-certified facilities, and supports PPAP documentation. It meets automotive change control requirements and is specified for operation from -55°C to +150°C junction temperature, making it suitable for under-hood and dashboard applications.
What is the recommended PCB layout for thermal performance?
For optimal thermal performance, use a 25mm × 25mm single-sided 1oz copper pour connected to the exposed drain pad via ≥4 thermal vias (0.3mm diameter, filled or capped). The datasheet specifies RθJA = 58.4°C/W under this condition, enabling 2.14W continuous dissipation without forced airflow.
Can DMP4051LK3Q-13 be driven directly by a 3.3V microcontroller?
No-its VGS(TH) range is -1.0V to -3.0V, and RDS(ON) rises sharply below -4.5V gate drive. At VGS = -3.3V, RDS(ON) exceeds 150 mΩ, causing excessive conduction loss. A dedicated gate driver or level-shifter is required for reliable 3.3V logic interface.
Does DMP4051LK3Q-13 include integrated ESD protection?
No integrated ESD protection circuitry is specified in the datasheet. The device features standard MOSFET gate oxide robustness (±20V VGS rating), but external TVS diodes or RC filters are recommended on gate traces in high-noise automotive environments to prevent electrostatic damage during handling or system operation.
DMP4051LK3Q-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- FET Type:
- P-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 40 V
- Current - Continuous Drain (Id) @ 25°C:
- 7.2A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 51mOhm @ 12A, 10V
- Vgs(th) (Max) @ Id:
- 3V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 14 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 674 pF @ 20 V
- FET Feature:
- -
- Power Dissipation (Max):
- 2.14W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (DPAK)
DMP4051LK3Q-13 FAQ
1.How can I place an order for DMP4051LK3Q-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMP4051LK3Q-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 DMP4051LK3Q-13 reliable?
The price and inventory of DMP4051LK3Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP4051LK3Q-13 is usually 5 days.
3.What payment methods are accepted for DMP4051LK3Q-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP4051LK3Q-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMP4051LK3Q-13?
DMP4051LK3Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMP4051LK3Q-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 DMP4051LK3Q-13?
For technical support, including DMP4051LK3Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP4051LK3Q-13 requirements.
6.How does Aetrix verify that DMP4051LK3Q-13 is sourced from the original manufacturer or authorized distributors?
All DMP4051LK3Q-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 DMP4051LK3Q-13 meets industry standards.
7.What is the process for return or replacement of DMP4051LK3Q-13?
All DMP4051LK3Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMP4051LK3Q-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 DMP4051LK3Q-13 part is unused and in its original packaging.
Return procedure for DMP4051LK3Q-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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