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Diodes Incorporated DMP4025LK3-13
- Part No.:
- DMP4025LK3-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
DMP4025LK3-13.pdf
- Description:
- MOSFET P-CH 40V 6.7A TO252
- Quantity:
- Payment:
- Shipping:
Inventory:4,900
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Product details
Overview
DMP4025LK3-13 from Diodes Incorporated is a 40V P-channel enhancement-mode MOSFET in TO252 (DPAK) package, featuring 25 mΩ RDS(on) at VGS = −10 V, −8.6 A continuous drain current, and fast switching with 33.7 nC total gate charge. It serves as a high-efficiency power switch in DC-DC converters and motor control circuits where low conduction loss and thermal robustness are critical.
For engineers reviewing the DMP4025LK3-13 datasheet, DMP4025LK3-13 pinout, DMP4025LK3-13 application, or DMP4025LK3-13 equivalent, this part supports design validation for automotive-qualified power stages (via Q-grade variant), thermal-limited PCB layouts, and high-reliability industrial power management where JEDEC-qualified P-channel devices with <1.5 Ω/W junction-to-lead thermal resistance are required.
Technical Context
This MOSFET uses planar trench-gate technology to achieve low RDS(on) while maintaining controlled gate charge (Qg = 33.7 nC @ VGS = −10 V) and fast switching (tD(off) = 53.7 ns). Its −40 V VDSS rating and −1.3 V typical VGS(th) enable reliable operation in 12–24 V rail systems with logic-level gate drive compatibility.
The device integrates a body diode with −0.7 V forward voltage at −1 A and exhibits normalized RDS(on) variation of ≤1.7× across −55°C to +150°C ambient, supported by RθJL = 1.43°C/W for direct lead-solder thermal path optimization in surface-mount power designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | −40 V - Withstands reverse-biased drain-source voltage up to 40 V without breakdown, suitable for 24 V nominal bus applications. |
| RDS(on) max | 25 mΩ @ VGS = −10 V - Enables ≤210 mW conduction loss at −3 A, critical for thermally constrained DC-DC synchronous rectifiers. |
| ID max | −8.6 A @ TA = +25°C - Supports continuous load currents up to 8.6 A on 25 mm × 25 mm FR4 PCB with 2 oz copper. |
| Qg | 33.7 nC @ VGS = −10 V - Determines gate driver power requirement and switching transition time in hard-switched topologies. |
| RθJL | 1.43°C/W - Specifies thermal resistance from junction to solder point, enabling accurate temperature rise estimation at drain lead termination. |
| VGS(th) | −0.8 to −1.8 V - Ensures turn-on with standard logic-level gate drivers (e.g., microcontroller GPIO or dedicated level-shifted drivers). |
| Ciss | 1643 pF @ VDS = −20 V - Influences gate drive loop stability and EMI generation during high-dv/dt switching events. |
Pinout & Package
Package: TO252 (DPAK), surface-mount, single-ended heat dissipation via exposed drain tab. Molded plastic housing with matte tin annealed terminals; UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Source) | Source terminal (P-channel) | Reference node for gate drive; connects to positive rail in high-side switch configurations. |
| Pin 2 (Gate) | Control input | Accepts negative gate-source voltage to enhance channel; requires −10 V for full RDS(on) specification. |
| Pin 3 (Drain) | Power output / high-current path | Exposed metal tab electrically connected to drain; primary thermal and current path to PCB copper pour. |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(on) with optimized Qg | 25 mΩ @ −10 V with 33.7 nC Qg enables high efficiency (>95%) in 500 kHz buck converters at 5 A output. |
| JEDEC-qualified reliability | Qualified per AEC-Q200 stress test standards, supporting use in industrial equipment requiring long-term parametric stability. |
| Thermally enhanced lead-frame | RθJL = 1.43°C/W allows direct thermal coupling to PCB copper, reducing junction temperature rise by >30% vs. standard TO252. |
| Green, RoHS-compliant construction | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) meets IEC 61249-2-21 and EU RoHS 3 requirements. |
Applications
| Motor Control | DC-DC Converters |
|---|---|
|
Use Scenario: H-bridge half-bridge leg in 24 V brushed DC motor driver for HVAC actuators. IC Role / Device Role / Timing Role: Low-side P-channel switch controlling motor winding return path; operates in PWM mode at 20 kHz. Use Value: 25 mΩ RDS(on) limits I²R loss to <1.1 W at 6.7 A peak, enabling compact heatsinkless design per channel. |
Use Scenario: Synchronous rectifier in isolated 24 V to 5 V flyback converter for industrial PLC I/O modules. IC Role / Device Role / Timing Role: Secondary-side power switch replacing Schottky diode; driven by transformer-coupled gate signal. Use Value: −0.7 V VSD and 25 mΩ RDS(on) reduce conduction loss by 42% vs. 40 V Schottky, improving full-load efficiency from 83% to 89%. |
| Backlighting | Printer Equipment |
|
Use Scenario: LED string current sink in 32-inch LCD panel backlight with 12 V supply and 4-string parallel configuration. IC Role / Device Role / Timing Role: Constant-current switch modulating LED brightness via PWM dimming at 1–20 kHz. Use Value: Fast 53.7 ns tD(off) ensures clean PWM edges with <2% duty-cycle distortion at 20 kHz, eliminating visible flicker. |
Use Scenario: Solenoid driver for paper feed mechanism in multifunction laser printers operating from 24 V rail. IC Role / Device Role / Timing Role: High-side P-channel switch energizing 12 Ω solenoid coil with 2 A inrush current. Use Value: −40 V VDSS and 35 A pulsed rating safely absorb 120 V inductive kickback during coil de-energization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar P-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMG4407LSS-13 | RDS(on) = 28 mΩ @ −4.5 V; SO-8 package; higher Ciss (1900 pF); lower ID (−6.8 A) | Limited to lower-current, space-constrained designs; unsuitable for >5 A thermal loads due to SO-8 thermal resistance. | Select when board area is constrained and gate drive is limited to −4.5 V logic levels. |
| SI2301BDS-T1-GE3 | RDS(on) = 115 mΩ @ −4.5 V; SOT-23 package; 2.6 A ID; no automotive qualification | Only viable for <1 A loads; lacks JEDEC reliability testing and thermal performance for industrial use. | Choose only for ultra-low-cost, low-power biasing or signal switching-not power switching. |
Compared with DMG4407LSS-13 and SI2301BDS-T1-GE3, DMP4025LK3-13 delivers superior thermal performance (RθJL = 1.43°C/W), higher current capability (−8.6 A), and automotive-grade reliability-making it the preferred choice for thermally demanding, high-reliability 24 V power stages.
Availability
DMP4025LK3-13 is available at Aetrix Electronics and suitable for motor controls, DC-DC converters, and printer equipment requiring stable component supply, JEDEC-qualified reliability, and TO252 thermal performance.
Supply support for DMP4025LK3-13 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 and manufacturing operations across Asia and the Americas.
This device belongs to Diodes' PowerMOS™ portfolio, engineered specifically for high-efficiency, medium-voltage power switching in industrial, computing, and consumer power supplies where low RDS(on) and robust thermal behavior are essential.
FAQ
Is DMP4025LK3-13 suitable for automotive applications?
No-the standard DMP4025LK3-13 is not automotive-qualified. Diodes offers the DMP4025LK3Q variant, which is AEC-Q101 qualified and documented in a separate datasheet. The -13 suffix denotes tape-and-reel packaging (2500 units/reel) but does not imply automotive compliance.
What is the maximum safe operating temperature for continuous operation?
The device supports continuous operation up to +150°C junction temperature (TJ). At TA = +70°C on a 25 mm × 25 mm FR4 PCB, the derated continuous drain current is −6.9 A, verified by thermal characterization in Note 6 of the datasheet.
Can DMP4025LK3-13 be used in high-frequency switching above 1 MHz?
While its 33.7 nC Qg and 53.7 ns tD(off) support operation up to ~500 kHz efficiently, switching above 1 MHz increases dynamic losses disproportionately due to Ciss = 1643 pF and Crss = 128 pF-verified in Figures 12 and 14 of the datasheet.
Does the TO252 package require thermal vias under the drain pad?
Yes-thermal vias (minimum 6× 0.3 mm diameter, filled or capped) connecting the exposed drain tab to inner-layer or backside copper pours are required to achieve the RθJA = 45°C/W rating cited in Note 6; omission results in >30% higher junction temperature at rated current.
DMP4025LK3-13 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:
- 6.7A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 25mOhm @ 3A, 10V
- Vgs(th) (Max) @ Id:
- 1.8V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 33.7 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1643 pF @ 20 V
- FET Feature:
- -
- Power Dissipation (Max):
- 1.7W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
DMP4025LK3-13 FAQ
1.How can I place an order for DMP4025LK3-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMP4025LK3-13 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 DMP4025LK3-13 reliable?
The price and inventory of DMP4025LK3-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP4025LK3-13 is usually 5 days.
3.What payment methods are accepted for DMP4025LK3-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP4025LK3-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMP4025LK3-13?
DMP4025LK3-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMP4025LK3-13 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 DMP4025LK3-13?
For technical support, including DMP4025LK3-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP4025LK3-13 requirements.
6.How does Aetrix verify that DMP4025LK3-13 is sourced from the original manufacturer or authorized distributors?
All DMP4025LK3-13 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 DMP4025LK3-13 meets industry standards.
7.What is the process for return or replacement of DMP4025LK3-13?
All DMP4025LK3-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMP4025LK3-13, 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 DMP4025LK3-13 part is unused and in its original packaging.
Return procedure for DMP4025LK3-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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