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Diodes Incorporated DMP31D7LDW-13
- Part No.:
- DMP31D7LDW-13
- Manufacturer:
- Diodes Incorporated
- Category:
- FET, MOSFET Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DMP31D7LDW-13.pdf
- Description:
- MOSFET 2P-CH 0.55A SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:9,880
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Product details
Overview
DMP31D7LDW-13 from Diodes Incorporated is a dual P-channel enhancement-mode MOSFET in SOT363 package, rated for -30V VDSS, 0.9Ω RDS(ON) @ VGS = -10V, and -0.55A continuous drain current at +25°C - designed for compact, high-efficiency power switching in space-constrained DC-DC converters and motor control circuits.
For engineers reviewing the DMP31D7LDW-13 datasheet, DMP31D7LDW-13 pinout, DMP31D7LDW-13 application, or DMP31D7LDW-13 equivalent, key selection criteria include verified dual-P-channel topology, gate threshold voltage (-1 to -2.6V), low input capacitance (19pF), ESD-protected gate, and thermal resistance (301°C/W with copper plate) under real PCB layout conditions.
Technical Context
This device integrates two matched P-channel MOSFETs in a single SOT363 package, sharing no internal connection between channels - enabling independent control of two high-side switches or complementary half-bridge configurations. Each channel features a body diode with -0.8 to -1.2V forward voltage at -0.23A.
It operates with gate-source voltage range ±20V, supports pulsed drain current up to -2.4A (10µs, 1% duty), and delivers stable RDS(ON) performance across -55°C to +150°C junction temperature - validated via normalized on-resistance curves versus temperature and gate voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | -30V - maximum drain-source blocking voltage before avalanche conduction begins |
| RDS(ON) @ VGS = -10V | 0.9Ω max - ensures ≤0.21W conduction loss at -0.42A, critical for thermally limited layouts |
| RDS(ON) @ VGS = -4.5V | 1.7Ω max - enables logic-level drive compatibility with 4.5V microcontroller outputs |
| Ciss | 19pF - low input capacitance reduces gate drive power and speeds turn-on response |
| tD(ON) | 30ns - short turn-on delay supports >1MHz switching in synchronous buck regulators |
| Qg @ VGS = -10V | 0.8nC - minimal total gate charge lowers driver IC loading and improves efficiency |
| RθJA (copper plate) | 301°C/W - defines thermal derating slope when mounted on 1-inch² 2oz copper pad |
Pinout & Package
Package: SOT363 - surface-mount, 6-pin, dual-channel discrete package with exposed drain pads for thermal dissipation; dimensions per Diodes' outline drawing: 2.15mm × 2.10mm × 0.95mm height, 0.65mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Q1 Source) | Source terminal of first P-channel MOSFET | Common reference node for Q1; tied to local ground or return path in high-side switch configuration |
| Pin 2 (Q1 Gate) | Gate terminal of first P-channel MOSFET | Control input requiring negative voltage relative to source to turn on; ESD-protected |
| Pin 3 (Q1 Drain / Q2 Drain) | Shared drain connection point | Internally connected drain nodes - not isolated; used for common-drain (paralleled) or cascode arrangements |
| Pin 4 (Q2 Drain / Q1 Drain) | Shared drain connection point | Same node as Pin 3; confirms dual-drain tie - requires external routing separation if independent drains needed |
| Pin 5 (Q2 Gate) | Gate terminal of second P-channel MOSFET | Independent control input; identical electrical specs to Pin 2 but electrically isolated from Q1 gate |
| Pin 6 (Q2 Source) | Source terminal of second P-channel MOSFET | Independent return path for Q2; enables dual high-side switching with separate load references |
Key Features
| Feature | Design Value |
|---|---|
| Low RDS(ON) at logic-level drive | 1.7Ω @ -4.5V enables direct MCU GPIO control without level-shifting circuitry |
| ESD-protected gate structure | HBM rating ≥2kV - eliminates need for external gate protection in typical board environments |
| Green, halogen-free packaging | Meets RoHS 3 (2015/863/EU) and Diodes' "Green" standard (<900ppm Br+Cl, <1000ppm Sb) |
| Fast switching with low Qg | 0.8nC total gate charge at -10V reduces driver power loss and improves PWM efficiency |
| Thermally enhanced layout support | 301°C/W RθJA with 1-inch² copper plate enables 0.4W operation at +70°C ambient |
Applications
| Motor Control | DC-DC Converter |
|---|---|
|
Use Scenario: Bidirectional current control in brushed DC motor H-bridge using external N-channel drivers and internal P-channel high-side switches. IC Role / Device Role / Timing Role: Dual P-channel high-side switch providing low-loss current sourcing during forward/reverse commutation phases. Use Value: 0.9Ω RDS(ON) limits I²R loss to <200mW at 0.42A, reducing thermal stress in fan or actuator modules. |
Use Scenario: Synchronous rectification in non-isolated buck converter for USB-C PD power delivery subsystems. IC Role / Device Role / Timing Role: Secondary-side P-channel switch replacing Schottky diode to improve conversion efficiency above 85%. Use Value: 19pF Ciss and 30ns tD(ON) support clean 1MHz switching with minimal shoot-through risk. |
| Power Management | Load Switching |
|
Use Scenario: Dual-rail power sequencing in portable medical sensors requiring independent enable control for analog and digital domains. IC Role / Device Role / Timing Role: Independent high-side load switches managing 3.3V and 5V domain power-up timing and fault isolation. Use Value: Matched -2.2V typical VGS(TH) ensures consistent turn-on behavior across both channels under same bias conditions. |
Use Scenario: Hot-swap protection and inrush limiting in industrial IoT edge node battery backup circuits. IC Role / Device Role / Timing Role: Controlled high-side disconnect switch with body diode reverse-blocking capability. Use Value: -30V VDSS and -0.38A continuous body diode rating allow safe reverse-current blocking during battery switchover. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual P-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN31D7LW-7 | Single P-channel, same RDS(ON) and VDSS, SOT23-3 package | Requires two devices for dual-switch function; larger board area and higher assembly cost | Select when design requires physical channel isolation or legacy SOT23 footprint compatibility |
| AO3415 | 0.055Ω RDS(ON) @ -4.5V but only -20V VDSS; SOT23-6 package | Higher conduction efficiency but insufficient for 24V bus applications due to lower breakdown rating | Prefer for 12V systems prioritizing ultra-low loss over voltage margin |
Compared with DMN31D7LW-7 and AO3415, DMP31D7LDW-13 uniquely balances dual-channel integration, -30V robustness, and logic-level drivability in a 2.2mm² footprint - making it optimal for space-constrained 24V industrial power rails where channel independence and thermal efficiency are jointly critical.
Availability
DMP31D7LDW-13 is available at Aetrix Electronics and suitable for motor controls, DC-DC converters, and power-management functions requiring stable component supply, automotive-grade reliability (Q-part variant DMP31D7LDWQ exists), and RoHS 3-compliant manufacturing.
Supply support for DMP31D7LDW-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with emphasis on power management, signal integrity, and connectivity products for industrial, computing, and consumer markets.
DMP31D7LDW belongs to Diodes' PowerMOS™ family - engineered specifically for high-efficiency, low-voltage power switching in compact portable and embedded systems where thermal density and gate drive simplicity are primary constraints.
FAQ
Is DMP31D7LDW-13 pin-compatible with other SOT363 dual MOSFETs like DMN3026LSD?
No. DMP31D7LDW-13 has a shared-drain configuration (Pins 3 & 4 internally connected), whereas DMN3026LSD uses independent drains. This structural difference prevents direct substitution without PCB layout revision and may cause unintended shorting if assumed compatible.
What is the maximum allowable gate-source voltage during transient conditions?
The absolute maximum VGS is ±20V per datasheet Section "Maximum Ratings." Exceeding this - even briefly - risks permanent gate oxide damage. Designs must limit overshoot using series gate resistors and/or Zener clamps, especially in inductive load switching.
Can DMP31D7LDW-13 be used in linear regulation mode?
It is not recommended. The device lacks SOA (Safe Operating Area) characterization for linear mode, and its RDS(ON) variation with temperature (Figure 6) introduces instability in constant-current or pass-element applications. Use dedicated LDOs or bipolar regulators instead.
Does the SOT363 package provide sufficient thermal performance for 0.4W continuous dissipation?
Only with proper layout: 0.4W requires the 1-inch² copper plate specified in Note 6 (RθJA = 301°C/W), yielding ~120°C junction rise at +25°C ambient. Without that copper area, steady-state dissipation must be limited to ≤0.1W (RθJA = 433°C/W) to stay within 150°C TJ(max).
DMP31D7LDW-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- 2 P-Channel (Dual)
- FET Feature:
- -
- Drain to Source Voltage (Vdss):
- -
- Current - Continuous Drain (Id) @ 25°C:
- 550mA (Ta)
- Rds On (Max) @ Id, Vgs:
- 900mOhm @ 420mA, 10V
- Vgs(th) (Max) @ Id:
- 2.6V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- -
- Input Capacitance (Ciss) (Max) @ Vds:
- -
- Power - Max:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DMP31D7LDW-13 FAQ
1.How can I place an order for DMP31D7LDW-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMP31D7LDW-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 DMP31D7LDW-13 reliable?
The price and inventory of DMP31D7LDW-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP31D7LDW-13 is usually 5 days.
3.What payment methods are accepted for DMP31D7LDW-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP31D7LDW-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMP31D7LDW-13?
DMP31D7LDW-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMP31D7LDW-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 DMP31D7LDW-13?
For technical support, including DMP31D7LDW-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP31D7LDW-13 requirements.
6.How does Aetrix verify that DMP31D7LDW-13 is sourced from the original manufacturer or authorized distributors?
All DMP31D7LDW-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 DMP31D7LDW-13 meets industry standards.
7.What is the process for return or replacement of DMP31D7LDW-13?
All DMP31D7LDW-13 units undergo pre-shipment inspection (PSI). If there is an issue with DMP31D7LDW-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 DMP31D7LDW-13 part is unused and in its original packaging.
Return procedure for DMP31D7LDW-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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