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Diodes Incorporated DMP2079LCA3-7
- Part No.:
- DMP2079LCA3-7
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- 3-XFDFN
- Datasheet:
-
DMP2079LCA3-7.pdf
- Description:
- MOSFET P-CH 20V 3.4A X4DSN1006-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,248
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Product details
Overview
DMP2079LCA3-7 from Diodes Incorporated is a P-channel enhancement-mode MOSFET optimized for low-voltage load switching in space-constrained portable electronics. It features -20V VDSS, 78 mΩ RDS(ON) at VGS = -8V, -3.4A continuous drain current at 25°C, and a 0.225 mm profile in the X4-DSN1006-3 package - enabling compact battery protection circuits in smartphones and wearables.
For engineers reviewing the DMP2079LCA3-7 datasheet, DMP2079LCA3-7 pinout, DMP2079LCA3-7 application, or DMP2079LCA3-7 equivalent, key selection criteria include gate threshold voltage (-0.7 to -1.2 V), low Qg (1.1 nC), thermal resistance (90.4 °C/W on FR-4), and RoHS-compliant NiPdAu terminations - all critical for high-density, thermally sensitive battery management designs.
Technical Context
This MOSFET operates as a single-polarity, surface-mount power switch with fully specified gate-drive compatibility down to -4.5V, supporting direct interfacing with 3.3V/5V logic controllers. Its low RDS(ON) at low VGS (-4.5V) and minimal Qgd (0.2 nC) enable fast, efficient turn-on/turn-off in synchronous or standalone load-switch configurations.
The device integrates a body diode with VSD = -0.7 V at -0.5A and tRR = 7.7 ns, suitable for reverse-current blocking and moderate-frequency freewheeling. Its junction-to-ambient thermal resistance varies between 90.4 °C/W (min pad layout) and 155.4 °C/W (standard FR-4), directly impacting maximum sustainable power dissipation in handheld PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | -20 V - Maximum drain-source blocking voltage for battery-side switching up to 2-cell Li-ion systems |
| RDS(ON) | 78 mΩ @ VGS = -8V - Enables <100 mW conduction loss at 3.4A, critical for thermal budget in sealed enclosures |
| ID (cont) | -3.4 A @ TA = +25°C - Sustains full-load current in USB-C PD or PMIC output stages without forced cooling |
| Qg | 1.1 nC @ VGS = -4.5V - Reduces gate-drive power and switching transition time in 1–5 MHz load-switch applications |
| RθJA | 90.4 °C/W - Measured on FR-4 with minimum recommended copper pads; defines max power before 125°C junction limit |
| VGS(TH) | -0.9 V (typ) - Ensures reliable turn-on with standard 3.3V GPIO, eliminating need for level-shifting circuitry |
| Package | X4-DSN1006-3 (Type B) - 1.0 × 0.6 mm footprint, 0.225 mm height, compatible with fine-pitch automated assembly |
Pinout & Package
Package: X4-DSN1006-3 (Type B), ultra-thin 3-terminal DFN with exposed drain pad. Dimensions: 1.00 mm × 0.60 mm × 0.225 mm. Terminals are solderable NiPdAu-plated; backside laminated with protective polymer film.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Source) | Source terminal (P-channel) | Connected to higher potential rail (e.g., battery anode); referenced for gate drive and current return path |
| 2 (Gate) | Control input | Accepts negative VGS relative to source; low input capacitance (Ciss = 152 pF) eases driving from low-power controllers |
| 3 (Drain) | Switched output | Connected to load; electrically tied to exposed bottom pad for thermal and current conduction - requires dedicated thermal pad on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Low gate charge | Qg = 1.1 nC enables <1 µs switching transitions with 10 mA gate drivers - reduces dynamic losses in pulsed load control |
| Ultra-low profile | 0.225 mm height allows stacking under displays or batteries - essential for sub-8 mm smartphone bezel designs |
| Thermally enhanced DFN | Exposed drain pad delivers 90.4 °C/W RθJA on minimal copper - supports 0.81 W steady-state dissipation without heatsinks |
| Halogen- and antimony-free | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - meets IPC-1752a Class 3 requirements for green consumer electronics |
Applications
| Battery Protection Circuit | USB-C Power Delivery Load Switch |
|---|---|
|
Use Scenario: Preventing over-discharge and short-circuit events in single- or dual-cell Li-ion packs used in Bluetooth earbuds. IC Role / Device Role / Timing Role: High-side P-MOSFET switch controlled by battery fuel gauge IC to disconnect load when voltage drops below 3.0 V. Use Value: 78 mΩ RDS(ON) limits voltage drop to <260 mV at 3.4A, preserving usable capacity while enabling fast fault response via low Qg. |
Use Scenario: Enabling/disabling 5 V/3 A power path from USB-C port to system rails in portable monitors and docking stations. IC Role / Device Role / Timing Role: Standalone load switch driven by USB PD controller's GPIO to meet USB Type-C specification power-role transition timing. Use Value: -0.9 V VGS(TH) ensures clean turn-on with 3.3 V logic; 0.225 mm height avoids interference with flex cable routing beneath PCB. |
| Smartphone Backlight Dimming | Wireless Charging Receiver Power Path |
|
Use Scenario: PWM-controlled current regulation for white LED strings in OLED display edge lighting. IC Role / Device Role / Timing Role: Low-side switch (with inverted logic) modulating cathode current at 1–5 kHz to achieve 1000:1 dimming ratio. Use Value: 100 mΩ RDS(ON) @ VGS = -4.5V minimizes conduction loss during 300 mA peak LED current, reducing local heating near display driver IC. |
Use Scenario: Isolating Qi receiver output from main battery during charging to prevent reverse current and thermal runaway. IC Role / Device Role / Timing Role: Reverse-blocking switch placed between rectifier output and battery terminal, activated only when charging voltage exceeds battery OCV. Use Value: Body diode VSD = -0.7 V at -0.5A and tRR = 7.7 ns suppresses reverse recovery spikes, improving EMI performance in tightly packed wireless charging modules. |
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 |
|---|---|---|---|
| DMG2307L-7 | RDS(ON) = 85 mΩ @ -4.5V; larger SOT-23 package (2.9 × 1.3 mm); higher RθJA = 200 °C/W | Less suited for ultra-thin devices; better for prototyping due to hand-solderable leads | Select when board space permits and thermal margin >100 °C/W is acceptable |
| AO3401A | RDS(ON) = 85 mΩ @ -4.5V; SO-23 package (2.9 × 1.3 mm); Qg = 2.3 nC - 110% higher than DMP2079LCA3-7 | Higher gate drive power required; slower switching; not suitable for >2 MHz PWM dimming | Choose only if cost sensitivity outweighs size, speed, and thermal constraints |
Compared with DMG2307L-7 and AO3401A, DMP2079LCA3-7 delivers superior volumetric efficiency (1.0 × 0.6 mm vs. ≥2.9 mm²), lower dynamic losses (1.1 nC vs. ≥2.3 nC), and tighter thermal resistance (90.4 °C/W vs. ≥200 °C/W), making it the optimal choice for production-grade mobile battery switches where PCB real estate and thermal headroom are constrained.
Availability
DMP2079LCA3-7 is available at Aetrix Electronics and suitable for battery protection, USB-C load switching, and smartphone backlight dimming requiring stable component supply across high-volume consumer electronics programs.
Supply support for DMP2079LCA3-7 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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.
The DMP2079LCA3-7 belongs to Diodes' X4-DSN ultra-thin MOSFET product line, engineered specifically for space-constrained portable power management - emphasizing minimal footprint, low-profile packaging, and robust gate-drive compatibility with modern PMICs and microcontrollers.
FAQ
What is the maximum safe operating temperature for DMP2079LCA3-7?
The DMP2079LCA3-7 has a rated junction temperature range of -55°C to +150°C. Under continuous DC operation on a standard FR-4 PCB with minimum recommended copper, its maximum allowable power dissipation is 0.81 W at +25°C ambient, dropping to ~0.45 W at +70°C ambient due to thermal derating per RθJA = 90.4 °C/W.
Can DMP2079LCA3-7 be used in high-frequency PWM applications?
Yes - with total gate charge of 1.1 nC and gate-drain charge of 0.2 nC, the DMP2079LCA3-7 supports clean switching up to 5 MHz in load-switch or LED-dimming configurations. Its 7.7 ns reverse recovery time and low Coss (78 pF) further reduce switching losses and EMI generation in high-speed duty-cycle control.
Is the DMP2079LCA3-7 pin-compatible with other X4-DSN1006-3 MOSFETs?
Yes - all X4-DSN1006-3 (Type B) packaged MOSFETs share identical mechanical dimensions and terminal assignments (Source-Gate-Drain). However, electrical characteristics such as VGS(TH), RDS(ON), and Qg differ significantly; substitution requires verification against circuit voltage, current, and timing requirements.
Does DMP2079LCA3-7 require external gate resistors for stability?
No external gate resistor is required for basic on/off operation due to its low Ciss (152 pF) and integrated gate resistance (21 Ω). However, a 10–47 Ω series resistor is recommended when driving from high-impedance sources or when EMI suppression is critical - especially in noisy RF-rich environments like smartphones and wearables.
DMP2079LCA3-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 3-XFDFN
- 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:
- 3.4A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 1.8V, 8V
- Rds On (Max) @ Id, Vgs:
- 78mOhm @ 500mA, 8V
- Vgs(th) (Max) @ Id:
- 1.2V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 1.1 nC @ 4.5 V
- Vgs (Max):
- -12V
- Input Capacitance (Ciss) (Max) @ Vds:
- 152 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 810mW
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X4-DSN1006-3 (Type B)
DMP2079LCA3-7 FAQ
1.How can I place an order for DMP2079LCA3-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMP2079LCA3-7 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 DMP2079LCA3-7 reliable?
The price and inventory of DMP2079LCA3-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP2079LCA3-7 is usually 5 days.
3.What payment methods are accepted for DMP2079LCA3-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP2079LCA3-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMP2079LCA3-7?
DMP2079LCA3-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMP2079LCA3-7 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 DMP2079LCA3-7?
For technical support, including DMP2079LCA3-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP2079LCA3-7 requirements.
6.How does Aetrix verify that DMP2079LCA3-7 is sourced from the original manufacturer or authorized distributors?
All DMP2079LCA3-7 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 DMP2079LCA3-7 meets industry standards.
7.What is the process for return or replacement of DMP2079LCA3-7?
All DMP2079LCA3-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMP2079LCA3-7, 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 DMP2079LCA3-7 part is unused and in its original packaging.
Return procedure for DMP2079LCA3-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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