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Diodes Incorporated DMP2045UFY4-7
- Part No.:
- DMP2045UFY4-7
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- 3-XDFN
- Datasheet:
-
DMP2045UFY4-7.pdf
- Description:
- MOSFET P-CH 20V 4.7A X2-DFN2015
- Quantity:
- Payment:
- Shipping:
Inventory:2,217
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Product details
Overview
DMP2045UFY4 from Diodes Incorporated is a P-channel enhancement-mode MOSFET in a 2.0 mm × 1.5 mm X2-DFN2015-3 package, rated for -20 V VDSS, 45 mΩ RDS(ON) at VGS = -4.5 V, and -4.7 A continuous drain current at TA = +25°C. It serves as a high-efficiency load switch or synchronous rectifier in low-voltage DC-DC converters and LED backlighting circuits.
For engineers reviewing the DMP2045UFY4 datasheet, DMP2045UFY4 pinout, DMP2045UFY4 application, or DMP2045UFY4 equivalent, key selection criteria include its low gate threshold (–0.3 to –1.0 V), fast switching (tD(ON) = 4.2 ns), ESD-protected gate, and thermal resistance of 84°C/W on optimized PCB layout - critical for compact power management designs.
Technical Context
This MOSFET operates in enhancement mode with a negative gate-source voltage control, requiring no external bias for turn-off. Its low RDS(ON) at VGS = -1.8 V (90 mΩ) enables operation in 1.8 V logic-controlled systems, while the integrated gate protection diode prevents latch-up during transient events.
The device features a total gate charge of 6.8 nC and reverse transfer capacitance of 66 pF, supporting high-frequency switching up to several MHz in buck converter topologies. Its junction-to-case thermal resistance of 14.5°C/W allows direct thermal coupling to copper planes for improved power handling under pulsed conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | -20 V - Maximum blocking voltage in off-state; suitable for 12 V and lower rail applications. |
| RDS(ON) | 45 mΩ @ VGS = -4.5 V - Enables <100 mW conduction loss at 4.7 A, reducing thermal stress in space-constrained layouts. |
| ID (max) | -4.7 A @ TA = +25°C - Supports sustained load currents in portable power rails without forced cooling. |
| Qg | 6.8 nC - Low gate drive energy requirement, easing integration with low-current GPIO or PWM controllers. |
| Ciss | 634 pF @ VDS = -10 V - Predictable input capacitance aids accurate gate driver sizing and EMI estimation. |
| tD(ON) | 4.2 ns - Enables >10 MHz switching in resonant or high-frequency DC-DC stages with minimal dead-time overhead. |
| RθJA | 84°C/W (with 1-inch² copper) - Allows ~1.5 W dissipation before reaching 125°C junction temperature under steady-state conditions. |
Pinout & Package
Package: X2-DFN2015-3 - 2.0 mm × 1.5 mm, 3-terminal, bottom-exposed thermal pad, RoHS-compliant NiPdAu-plated terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (D) | Power output node | Connected to load or switched rail; electrically tied to exposed thermal pad for heat sinking. |
| Source (S) | Reference node / return path | Common connection point for gate drive reference and current sensing; ties to system ground or input rail. |
| Gate (G) | Control input | High-impedance terminal requiring ≤±8 V swing; ESD-protected to withstand ±2 kV HBM per JEDEC JS-001. |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(ON) at 1.8 V logic | 90 mΩ @ VGS = -1.8 V - Enables direct interface with 1.8 V microcontroller GPIOs without level-shifting. |
| Fast switching speed | tF = 9.6 ns - Reduces switching losses in high-frequency converters, improving efficiency above 500 kHz. |
| ESD-protected gate | HBM rating ≥2 kV - Eliminates need for external gate protection in handheld and industrial environments. |
| Green packaging | Halogen- and antimony-free, <900 ppm Br/Cl, <1000 ppm Sb - Meets IPC-1752A Class 2 material declaration requirements. |
| Thermal performance | RθJC = 14.5°C/W - Enables >1.2 W pulsed power delivery when mounted on thermally enhanced PCBs. |
Applications
| LED Backlight Control | USB-C Power Delivery Switch |
|---|---|
|
Use Scenario: Driving white LED strings in thin-profile displays using PWM dimming at 1–20 kHz. IC Role / Device Role: High-side load switch controlling current flow to LED anodes from 3.3–5 V supply rails. Use Value: 45 mΩ RDS(ON) limits voltage drop to <235 mV at 5 A peak, preserving headroom for dimming range and minimizing self-heating. |
Use Scenario: Enabling/disabling 5–20 V power paths in USB-C PD sink applications with strict inrush control. IC Role / Device Role: Reverse-polarity protected high-side switch placed between connector and DC-DC input stage. Use Value: Gate threshold of –0.3 to –1.0 V ensures full enhancement with 3.3 V logic, while 25 A pulsed rating handles hot-plug surges. |
| Portable DC-DC Synchronous Rectifier | Industrial Sensor Power Gating |
|
Use Scenario: Replacing Schottky diodes in 3.3 V/5 V buck converter outputs for battery-powered IoT nodes. IC Role / Device Role: Low-side synchronous rectifier operating in continuous conduction mode at 1–3 MHz. Use Value: Coss = 81 pF and Qgd = 1.6 nC minimize shoot-through risk and improve light-load efficiency by >8% vs. diode solution. |
Use Scenario: Isolating analog sensor supplies (e.g., pressure, temperature) during MCU sleep modes to reduce quiescent current. IC Role / Device Role: Always-on, low-leakage (IDSS ≤ –1 µA) power gate controlled by ultra-low-power GPIO. Use Value: Sub-µA off-state leakage extends battery life in 10-year deployments; –55°C to +150°C rating supports outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar P-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMG2305U-7 | RDS(ON) = 48 mΩ @ VGS = -4.5 V; higher Qg (10.5 nC); same X2-DFN2015-3 footprint | Slightly higher switching loss; less suitable for >2 MHz operation due to slower tR/tF | Preferred where gate drive strength exceeds 5 mA and layout allows marginally higher thermal rise. |
| AO3401 | RDS(ON) = 55 mΩ @ VGS = -4.5 V; larger SOT-23 package; RθJA = 200°C/W | Lower power density; unsuitable for space-constrained or >1 W continuous dissipation use cases | Chosen only when legacy SOT-23 compatibility or manual assembly is required over thermal performance. |
Compared with DMG2305U-7 and AO3401, DMP2045UFY4 delivers the lowest RDS(ON) in its footprint class and best thermal resistance, making it optimal for miniaturized, high-efficiency power switches where board area and thermal budget are constrained.
Availability
DMP2045UFY4 is available at Aetrix Electronics and suitable for LED backlighting, USB-C power delivery switching, and portable DC-DC synchronous rectification requiring stable component supply across production ramps and long-lifecycle programs.
Supply support for DMP2045UFY4 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 industrial, computing, and consumer markets.
DMP2045UFY4 belongs to Diodes' X2-DFN ultra-small-signal MOSFET product line, engineered for space-constrained, high-efficiency power switching in battery-operated and thermally sensitive applications.
FAQ
What is the maximum safe operating voltage for DMP2045UFY4?
The absolute maximum drain-source voltage is –20 V. Operation beyond this rating risks avalanche breakdown and permanent damage. Derating to –16 V is recommended for reliability in automotive or industrial environments with voltage transients exceeding ±20 % of nominal rail.
Does DMP2045UFY4 require a gate resistor for stability?
A series gate resistor (typically 5–22 Ω) is recommended to dampen ringing caused by parasitic inductance in high-speed switching. The device's 20 Ω typical gate resistance and 66 pF Crss make it susceptible to oscillation without controlled gate drive impedance.
Can DMP2045UFY4 be used in linear regulation mode?
No - it is not characterized or guaranteed for linear (ohmic) operation. Its Safe Operating Area (SOA) chart shows only pulsed and DC limits at specific VDS/ID combinations; sustained linear use risks thermal runaway due to positive temperature coefficient of RDS(ON).
Is the thermal pad electrically isolated in X2-DFN2015-3?
No - the exposed thermal pad is internally connected to the Drain terminal. PCB layout must assign the pad to the same net as the drain trace and avoid accidental shorts to ground or source planes via solder mask or stencil design.
DMP2045UFY4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 3-XDFN
- 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:
- 4.7A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 1.5V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 45mOhm @ 4A, 4.5V
- Vgs(th) (Max) @ Id:
- 1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 6.8 nC @ 4.5 V
- Vgs (Max):
- ±8V
- Input Capacitance (Ciss) (Max) @ Vds:
- 634 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 670mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN2015-3
DMP2045UFY4-7 FAQ
1.How can I place an order for DMP2045UFY4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMP2045UFY4-7 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 DMP2045UFY4-7 reliable?
The price and inventory of DMP2045UFY4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP2045UFY4-7 is usually 5 days.
3.What payment methods are accepted for DMP2045UFY4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP2045UFY4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMP2045UFY4-7?
DMP2045UFY4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMP2045UFY4-7 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 DMP2045UFY4-7?
For technical support, including DMP2045UFY4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP2045UFY4-7 requirements.
6.How does Aetrix verify that DMP2045UFY4-7 is sourced from the original manufacturer or authorized distributors?
All DMP2045UFY4-7 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 DMP2045UFY4-7 meets industry standards.
7.What is the process for return or replacement of DMP2045UFY4-7?
All DMP2045UFY4-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMP2045UFY4-7, 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 DMP2045UFY4-7 part is unused and in its original packaging.
Return procedure for DMP2045UFY4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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