Diodes Incorporated DMP2033UCB9-7
- Part No.:
- DMP2033UCB9-7
- Manufacturer:
- Diodes Incorporated
- Category:
- FETs, MOSFETs
- Package:
- 9-UFBGA, WLBGA
- Datasheet:
-
DMP2033UCB9-7.pdf
- Description:
- MOSFET P-CH 20V 4.2A U-WLB1515-9
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
DMP2033UCB9 from Diodes Incorporated is a P-channel enhancement-mode MOSFET in a 1.5 mm × 1.5 mm CSP package, rated for -20 V VDSS, 28 mΩ RDS(on) at VGS = -4.5 V, and 5.4 nC total gate charge. It delivers low on-state loss and fast switching for compact battery protection and load-switching circuits in portable electronics.
For engineers reviewing the DMP2033UCB9 datasheet, DMP2033UCB9 pinout, DMP2033UCB9 application, or DMP2033UCB9 equivalent, key selection criteria include its -0.6 V typical gate threshold voltage, AEC-Q101 qualification, 3 kV HBM ESD rating, and thermal resistance of 69 °C/W on 1-in² copper-critical for space-constrained, high-reliability power management designs.
Technical Context
This MOSFET employs LD-MOS technology to achieve a low figure of merit (RDS(on) × Qg = 151 mΩ·nC), enabling high-efficiency operation in bidirectional blocking configurations. Its -0.4 V to -1.1 V gate threshold range ensures reliable turn-on with low-voltage control signals down to -1.8 V.
The U-WLB1515-9 package integrates nine solder bumps in a 3×3 array with 0.5 mm pitch, supporting ultra-thin PCB assembly. Thermal performance is optimized via direct die-to-PCB conduction, yielding 69 °C/W RθJA under enhanced copper layout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | -20 V - Supports full battery voltage margin for single-cell Li-ion (up to 4.35 V) with safety headroom in reverse-polarity protection. |
| RDS(on) | 28 mΩ @ VGS = -4.5 V - Limits conduction loss to ≤130 mW at 2 A continuous drain current. |
| Qg | 5.4 nC - Enables <10 ns turn-on delay and <12 ns rise time with 2 Ω gate drive, suitable for 1–2 MHz switching. |
| VGS(th) | -0.6 V typ. - Allows direct interface with 1.8 V or 2.5 V logic without level-shifting circuitry. |
| TJ Range | -55 °C to +150 °C - Qualified per AEC-Q101, enabling use in automotive cabin and industrial ambient environments. |
| ESD Rating | 3 kV HBM - Protects gate integrity during automated PCB assembly and handling without external clamping. |
Pinout & Package
Package: U-WLB1515-9 - 1.5 mm × 1.5 mm × 0.62 mm chip-scale package with 9 solder bumps (3×3 array, 0.5 mm pitch), no leads, bottom-side thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Bump A1 | Source | Primary current return path; electrically and thermally connected to internal die substrate. |
| Bump A2 | Source | Parallel source connection to reduce bond wire inductance and improve current sharing. |
| Bump A3 | Source | Third source bump enhancing thermal dissipation and reducing RDS(on) variance across temperature. |
| Bump B1 | Gate | Control input; isolated by oxide layer; requires ESD-safe handling due to 3 kV HBM sensitivity. |
| Bump B2 | Drain | Main power output terminal; connects directly to die drain region; handles -30 A pulsed current. |
| Bump B3 | Drain | Secondary drain bump improving current distribution and reducing localized heating at high ID. |
| Bump C1 | Source | Fourth source connection reinforcing low-impedance return path for high di/dt load switching. |
| Bump C2 | Drain | Third drain bump supporting symmetrical current flow and minimizing package parasitic inductance. |
| Bump C3 | Source | Fifth and final source bump completing 5-source / 4-drain asymmetry optimized for unidirectional load switch duty. |
Key Features
| Feature | Design Value |
|---|---|
| LD-MOS process technology | Enables 28 mΩ RDS(on) at -4.5 V while maintaining <115 pF Crss for stable high-frequency gate drive. |
| Ultra-low VGS(th) | -0.6 V typical threshold allows direct control from 1.8 V microcontroller GPIOs without external bias networks. |
| U-WLB1515-9 footprint | 1.5 mm × 1.5 mm area saves >70% board space vs. SOT-23; 0.62 mm height enables ultra-thin wearable designs. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, and ESD stress-suitable for infotainment and body control modules. |
| 3 kV HBM ESD protection | Eliminates need for discrete gate protection diodes in production lines handling bare PCBs pre-assembly. |
Applications
| Battery Protection Circuit | USB-C Load Switch |
|---|---|
|
Use Scenario: Reverse-current blocking and overcurrent shutdown in single-cell Li-ion battery packs. IC Role / Device Role / Timing Role: High-side P-channel switch controlled by battery management IC to isolate cell during fault conditions. Use Value: 28 mΩ RDS(on) limits voltage drop to <116 mV at 4.2 A, preserving battery runtime and enabling accurate Coulomb counting. |
Use Scenario: Power delivery path control in USB-C port controllers managing 5 V/3 A bus power. IC Role / Device Role / Timing Role: Low-latency load switch enabling <50 ns response to VBUS enable/disable commands. Use Value: 5.4 nC Qg supports clean 100 ns turn-on with minimal overshoot, meeting USB PD 3.0 power state transition timing. |
| Smartphone Power Rail Isolation | Automotive Cabin Sensor Module |
|
Use Scenario: Independent power gating of camera, display, and modem subsystems to minimize standby leakage. IC Role / Device Role / Timing Role: Always-on P-MOSFET isolating auxiliary rails during deep-sleep modes. Use Value: -0.6 V VGS(th) ensures full enhancement with 1.8 V PMIC control outputs, eliminating boot-up sequencing delays. |
Use Scenario: Power switching for LIN-connected seat occupancy sensors and ambient light modules. IC Role / Device Role / Timing Role: AEC-Q101-qualified high-side switch interfacing with 3.3 V automotive microcontrollers. Use Value: -55 °C to +150 °C operating range and 69 °C/W RθJA ensure stable operation in under-hood temperature cycling without derating. |
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 |
|---|---|---|---|
| DMG2305UVT-7 | RDS(on) = 42 mΩ @ -4.5 V; Qg = 7.2 nC; SOT-23 package (2.9 mm × 1.6 mm) | Larger footprint and higher conduction loss; better thermal mass for intermittent loads | Select when board space permits larger package and lower gate drive strength is acceptable. |
| AO3401A | RDS(on) = 44 mΩ @ -4.5 V; VGS(th) = -0.7 V min; TSOP-6 package (3.0 mm × 1.6 mm) | Higher threshold spread (-0.7 V to -1.3 V); less predictable turn-on with 1.8 V logic | Prefer only where cost sensitivity outweighs precision gate control and thermal performance requirements. |
Compared with DMG2305UVT-7 and AO3401A, DMP2033UCB9 offers superior RDS(on)/Qg ratio and smallest footprint-critical for wearables and multi-rail mobile SoCs-while its tighter VGS(th) tolerance ensures deterministic switching with low-voltage controllers.
Availability
DMP2033UCB9 is available at Aetrix Electronics and suitable for battery protection, USB-C load switching, and automotive sensor module power management requiring stable component supply and long-term lifecycle support.
Supply support for DMP2033UCB9 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-efficiency power management and signal integrity solutions for consumer, industrial, and automotive markets.
DMP2033UCB9 belongs to Diodes' ultra-compact power MOSFET product line, engineered specifically for space-constrained, high-reliability load-switching applications where thermal density and gate-drive compatibility with low-voltage logic are primary design constraints.
FAQ
What is the maximum continuous drain current for DMP2033UCB9 at 70°C ambient?
At TA = +70°C with 1-inch² 2-oz copper pad, the continuous drain current is -4.5 A. This rating reflects thermal derating from the -5.8 A value at 25°C, based on the 69 °C/W junction-to-ambient thermal resistance and 150°C maximum junction temperature limit.
Does DMP2033UCB9 require external gate resistors for stability?
No external gate resistor is required for basic switching, but a 2–10 Ω series resistor is recommended to dampen ringing caused by package inductance and PCB trace inductance. The device's 26.1 Ω intrinsic gate resistance and low Crss (86–115 pF) provide inherent Miller immunity in typical 1–2 MHz DC-DC applications.
Can DMP2033UCB9 be used in synchronous rectification?
No-it is a P-channel enhancement-mode MOSFET optimized for high-side switching, not synchronous rectification. Its body diode forward voltage is -0.7 V (typ.) at -2 A, and it lacks the low Qrr (<5 nC) and fast trr (<20 ns) required for efficient synchronous buck secondary-side operation.
Is the U-WLB1515-9 package compatible with standard reflow profiles?
Yes-the U-WLB1515-9 package is qualified for IPC/JEDEC J-STD-020D-compliant lead-free reflow, with peak temperature up to 260°C for ≤30 seconds. Its copper pillar interconnects withstand thermal cycling better than traditional solder bumps, supporting ≥1000 cycles between -40°C and +125°C.
DMP2033UCB9-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 9-UFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- P-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 20 V
- Current - Continuous Drain (Id) @ 25°C:
- 4.2A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 1.8V, 4.5V
- Rds On (Max) @ Id, Vgs:
- 33mOhm @ 2A, 4.5V
- Vgs(th) (Max) @ Id:
- 1.1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 7 nC @ 4.5 V
- Vgs (Max):
- -6V
- Input Capacitance (Ciss) (Max) @ Vds:
- 500 pF @ 10 V
- FET Feature:
- -
- Power Dissipation (Max):
- 1W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-WLB1515-9
DMP2033UCB9-7 FAQ
1.How can I place an order for DMP2033UCB9-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DMP2033UCB9-7 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 DMP2033UCB9-7 reliable?
The price and inventory of DMP2033UCB9-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DMP2033UCB9-7 is usually 5 days.
3.What payment methods are accepted for DMP2033UCB9-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DMP2033UCB9-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DMP2033UCB9-7?
DMP2033UCB9-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DMP2033UCB9-7 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 DMP2033UCB9-7?
For technical support, including DMP2033UCB9-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DMP2033UCB9-7 requirements.
6.How does Aetrix verify that DMP2033UCB9-7 is sourced from the original manufacturer or authorized distributors?
All DMP2033UCB9-7 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 DMP2033UCB9-7 meets industry standards.
7.What is the process for return or replacement of DMP2033UCB9-7?
All DMP2033UCB9-7 units undergo pre-shipment inspection (PSI). If there is an issue with DMP2033UCB9-7, 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 DMP2033UCB9-7 part is unused and in its original packaging.
Return procedure for DMP2033UCB9-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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