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Diodes Incorporated DMP21D1UT-7
- Part No.:
- DMP21D1UT-7
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- SOT-523
- Datasheet:
-
DMP21D1UT-7.pdf
- Description:
- MOSFET BVDSS: 8V~24V SOT523 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:8,183
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Product details
Overview
DMP21D1UT-7 from Diodes Incorporated is a P-channel enhancement-mode MOSFET in SOT523 package, rated for -20V VDSS, 710 mΩ RDS(ON) at VGS = -4.5V, and -0.63A continuous drain current at TA = +25°C. It serves as a low-voltage load switch or DC-DC converter synchronous rectifier in space-constrained portable power rails.
For engineers reviewing the DMP21D1UT-7 datasheet, DMP21D1UT-7 pinout, DMP21D1UT-7 application, or DMP21D1UT-7 equivalent, key selection criteria include gate threshold voltage (-0.5 to -1.0 V), low input capacitance (33 pF Ciss), fast switching (tD(ON) = 4.6 ns), thermal resistance (480 °C/W RθJA on FR-4), and AEC-Q200 readiness for automotive-grade power management.
Technical Context
This MOSFET employs a trench-gate silicon process optimized for low RDS(ON) at low VGS (down to -1.8 V), enabling efficient operation with 1.8 V–3.3 V logic-level control. Its ESD-protected gate (HBM >2 kV) and low leakage (<1 µA IDSS) support robust battery-powered system design.
The device exhibits normalized RDS(ON) variation of ≤1.6× across -55°C to +150°C junction temperature, with gate charge Qg = 1.4 nC and Crss = 3 pF - characteristics critical for minimizing conduction loss and Miller-induced shoot-through in high-frequency switching topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | -20 V - maximum blocking voltage for 3.3 V/5 V rail protection and USB PD auxiliary switches |
| RDS(ON) | 710 mΩ @ VGS = -4.5V - enables <100 mW conduction loss at 0.4 A in compact load-switch designs |
| VGS(TH) | -0.5 to -1.0 V - ensures reliable turn-on with 1.8 V GPIO or low-voltage microcontroller outputs |
| Ciss | 33 pF - reduces gate drive power and improves switching efficiency above 1 MHz in DC-DC controllers |
| tD(ON) | 4.6 ns - supports sub-100 ns dead-time control in synchronous buck converters |
| RθJA | 480 °C/W - defines thermal derating limit on standard 2 oz FR-4 PCB without copper pour |
| ID (TA=75°C) | -0.51 A - usable current rating under sustained ambient conditions in sealed enclosures |
Pinout & Package
Package: SOT523 - ultra-small surface-mount plastic package (1.60 × 1.60 × 0.55 mm), moisture sensitivity level 1, matte tin–annealed terminals solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Gate) | Control electrode | Accepts logic-level negative bias; ESD-protected; requires <1.4 nC total charge for full turn-on |
| 2 (Drain) | Current sink node | Connected to higher-potential rail (e.g., battery anode); withstands -20 V reverse blocking |
| 3 (Source) | Reference node | Typically tied to system ground or load return; body diode anode faces drain for reverse-current blocking |
Key Features
| Feature | Design Value |
|---|---|
| Low gate threshold voltage | VGS(TH) down to -0.5 V enables direct drive from 1.8 V I/O without level-shifting circuitry |
| Low input capacitance | Ciss = 33 pF minimizes gate drive power and propagation delay in high-frequency switching |
| ESD-protected gate | HBM rating >2 kV eliminates need for external gate protection in handheld and wearables |
| Thermally stable RDS(ON) | ≤1.6× variation over -55°C to +150°C ensures predictable power loss across automotive cabin environments |
| Green packaging | Halogen- and antimony-free molding compound (Br+Cl <1500 ppm, Sb <1000 ppm) meets IPC-1752A Tier 1 reporting |
Applications
| Battery Protection Circuit | USB Type-C Port Power Switch |
|---|---|
Use Scenario: Reverse-current blocking and overcurrent cutoff in single-cell Li-ion battery packs. IC Role / Device Role / Timing Role: P-channel load switch controlling battery-to-system power path; operates in linear mode during fault limiting. Use Value: 710 mΩ RDS(ON) limits voltage drop to <300 mV at 0.4 A, preserving battery runtime while supporting fast shutdown via low VGS(TH). | Use Scenario: VBUS enable/disable switching in USB-C receptacles with 5 V/3 A power delivery. IC Role / Device Role / Timing Role: High-side power switch isolating downstream port electronics from upstream source; driven by USB PD controller GPIO. Use Value: 4.6 ns tD(ON) and 7.9 ns tF allow precise timing control during hot-plug events without cross-conduction risk. |
| DC-DC Synchronous Rectifier | IoT Sensor Node Power Gating |
Use Scenario: Low-side synchronous rectification in 3.3 V buck converter for MCU subsystems. IC Role / Device Role / Timing Role: Freewheeling path during high-side FET off-time; body diode forward voltage ≤1.2 V at -300 mA. Use Value: 390 mΩ typical RDS(ON) at -400 mA reduces conduction loss by >40% vs. Schottky alternatives, improving light-load efficiency. | Use Scenario: Power gating of BLE radio, environmental sensors, and flash memory in battery-operated edge nodes. IC Role / Device Role / Timing Role: Standby-mode isolation switch disconnecting peripherals during deep-sleep cycles; controlled by ARM Cortex-M GPIO. Use Value: <1 µA IDSS leakage preserves battery capacity over multi-week sleep intervals; SOT523 footprint saves >1.2 mm² PCB area per switch. |
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 |
|---|---|---|---|
| DMN2016LFG-7 | RDS(ON) = 420 mΩ @ VGS = -4.5V; SOT-23 package; higher ID = -2.0 A | Larger footprint (2.9 × 1.3 mm vs. 1.6 × 1.6 mm); higher thermal mass | Select when higher current (>0.6 A) or lower RDS(ON) is required and board space permits larger package |
| AO3415 | RDS(ON) = 50 mΩ @ VGS = -4.5V; SOT-23; VDSS = -20 V; Qg = 3.5 nC | Higher gate charge increases drive power; not qualified to AEC-Q200 | Prefer for non-automotive, high-efficiency DC-DC where gate drive capability allows |
Compared with DMN2016LFG-7 and AO3415, DMP21D1UT-7 delivers optimal trade-off between ultra-compact size, low-voltage drive compatibility, and automotive-ready qualification - making it uniquely suited for space- and voltage-constrained portable and automotive accessory power switches.
Availability
DMP21D1UT-7 is available at Aetrix Electronics and suitable for battery protection circuits, USB Type-C port power switches, and IoT sensor node power gating requiring stable component supply across production lifecycles.
Supply support for DMP21D1UT-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, manufacturing, and sales operations across Asia, Europe, and North America.
The DMP21D1UT belongs to Diodes' "PowerMOS" portfolio, engineered specifically for low-voltage, high-density power management in portable, automotive, and industrial applications where small footprint and logic-level drive are mandatory.
FAQ
What is the maximum safe operating junction temperature for DMP21D1UT-7?
The absolute maximum junction temperature is +150°C, verified per JEDEC JESD22-A104. Operation at this limit requires derating of continuous current to ≤0.25 A on standard FR-4 PCB (RθJA = 480 °C/W). Thermal simulation using Figure 13's transient curves is recommended for pulsed applications.
Can DMP21D1UT-7 be used in automotive applications?
Yes - DMP21D1UT-7 is manufactured in IATF 16949-certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q101, Diodes confirms its suitability for automotive accessory systems (e.g., infotainment USB ports, body control modules) pending customer-specific qualification testing per AEC-Q200 stress requirements.
Is the SOT523 package hand-solderable?
Yes - the SOT523 package uses matte tin–annealed terminals compatible with standard reflow profiles (J-STD-020 Level 1) and manual soldering using fine-tip irons (≤0.5 mm tip) and rosin-core flux. Pad layout per Diodes' recommended dimensions (D = 1.60 mm, E = 1.60 mm) ensures reliable wetting and alignment.
Does DMP21D1UT-7 have integrated gate protection?
Yes - the device integrates on-chip ESD protection on the gate terminal, rated to >2 kV HBM (Human Body Model) per JESD22-A114. This eliminates the need for external Zener clamps in most portable applications, though layout best practices (short traces, ground guard rings) remain essential for robustness.
DMP21D1UT-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- 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:
- 630mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 1.8V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 710mOhm @ 400mA, 4.5V
- Vgs(th) (Max) @ Id:
- 1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 1.4 nC @ 4.5 V
- Vgs (Max):
- ±8V
- Input Capacitance (Ciss) (Max) @ Vds:
- 33 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 260mW (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
DMP21D1UT-7 FAQ
1.How can I place an order for DMP21D1UT-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMP21D1UT-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 DMP21D1UT-7 reliable?
The price and inventory of DMP21D1UT-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP21D1UT-7 is usually 5 days.
3.What payment methods are accepted for DMP21D1UT-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP21D1UT-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMP21D1UT-7?
DMP21D1UT-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMP21D1UT-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 DMP21D1UT-7?
For technical support, including DMP21D1UT-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP21D1UT-7 requirements.
6.How does Aetrix verify that DMP21D1UT-7 is sourced from the original manufacturer or authorized distributors?
All DMP21D1UT-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 DMP21D1UT-7 meets industry standards.
7.What is the process for return or replacement of DMP21D1UT-7?
All DMP21D1UT-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMP21D1UT-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 DMP21D1UT-7 part is unused and in its original packaging.
Return procedure for DMP21D1UT-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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