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Monolithic Power Systems Inc. MP86884DQKTE-LF-P
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- Part No.:
- MP86884DQKTE-LF-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 34-PowerWFQFN
- Datasheet:
-
MP86884DQKTE-LF-P.pdf
- Description:
- IC HALF BRIDGE DRIVER 55A 34TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,011
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Product details
Overview
MP86884DQKTE-LF-P from Monolithic Power Systems is a monolithic half-bridge Intelli-Phase™ solution integrating high-side and low-side power MOSFETs with gate drivers in a single 6×6 mm TQFN package. It delivers 55 A continuous output current, supports 100 kHz–1 MHz switching, features integrated current and temperature sensing (10 μA/A and 10 mV/°C), and operates across 4.5 V–14 V input range - optimized for server core voltage regulation.
For engineers reviewing the MP86884DQKTE-LF-P datasheet, MP86884DQKTE-LF-P pinout, MP86884DQKTE-LF-P application, or MP86884DQKTE-LF-P equivalent, key selection criteria include tri-state PWM compatibility, 3 ns rising / 8 ns falling dead time, ±4% current sense accuracy at 30 A, thermal protection via VTEMP, and multi-phase synchronization via SYNC pin.
Technical Context
The MP86884 functions as a self-contained half-bridge power stage with integrated driver logic, bootstrap circuitry, and analog sensing interfaces. Its tri-state PWM acceptance enables seamless integration with multi-phase VR controllers like MP2935, while built-in dead-time control (3 ns rise / 8 ns fall) minimizes shoot-through risk without external timing components.
Current sensing uses a 10 μA/A proportional current source on CS pin, supporting cycle-by-cycle overcurrent protection and phase balancing; temperature sensing provides linear 10 mV/°C output with –100 mV offset on VTEMP, enabling real-time junction monitoring and system-level thermal management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 55 A - supports high-current CPU/GPU core rails without external FETs or driver ICs |
| Input Voltage Range | 4.5 V to 14 V - compatible with standard 5 V, 12 V intermediate bus architectures |
| Switching Frequency Range | 100 kHz to 1 MHz - enables optimization of efficiency vs. size in VR designs |
| Current Sense Accuracy | ±4% at 30 A - enables precise OCP triggering and active droop implementation |
| Temperature Sense Gain | 10 mV/°C with –100 mV offset - allows direct junction temperature readout referenced to VSS |
| Dead Time (Rising/Falling) | 3 ns / 8 ns - ensures safe commutation under fast transient load conditions |
| High-Side Current Limit | 80 A - latches off on overcurrent, requiring EN toggle or supply recycle to reset |
Pinout & Package
MP86884DQKTE-LF-P is housed in a thermally enhanced 6 mm × 6 mm TQFN package with exposed thermal pad (pins 1–6 and 8–21). The package conforms to JEDEC MO-220 and supports high-power density PCB layouts with low θJA (29°C/W) and θJC (8°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pins 1–6) | Switch Node Output | High-current connection point between HS and LS FETs; requires low-inductance routing to minimize ringing |
| VDDDRV (Pin 7) | Driver Supply Input | 5 V supply for gate driver circuitry; must be decoupled with 1–4.7 µF ceramic capacitor near pin |
| PGND (Pins 8–21) | Power Ground Return | Low-impedance return path for HS/LS FET switching currents; tied to exposed thermal pad |
| IN (Pins 22–23) | Main Input Supply | 4.5–14 V input rail; requires local bulk + ceramic bypass capacitors placed adjacent to pins |
| EN (Pin 24) | Enable Control | Pull low to force SW into high-impedance state; primary hardware startup/shutdown control |
| VTEMP (Pin 25) | Junction Temperature Output | Analog voltage output (10 mV/°C – 100 mV); used for thermal monitoring and system protection |
| CS (Pin 28) | Current Sense Output | 10 µA/A proportional current source; connects to external resistor for voltage-based current feedback |
| SYNC (Pin 33) | Synchronous Rectification Mode | Pull low to enable diode emulation mode; open or high for normal synchronous operation |
| BST (Pin 34) | Bootstrap Supply | Connects to SW via 0.22–1 µF capacitor; generates floating gate drive voltage for HS FET |
Key Features
| Feature | Design Value |
|---|---|
| Integrated HS/LS MOSFETs + Driver | Eliminates discrete driver+FET layout complexity and parasitic mismatch in multi-phase VRs |
| Tri-State PWM Acceptance | Enables seamless interface with advanced VR controllers (e.g., MP2935) for phase shedding and dynamic reconfiguration |
| Built-in Bootstrap Switch | Reduces external component count by integrating bootstrap charging switch, improving reliability |
| Multi-Phase Ready Sensing | CS and VTEMP outputs support parallel summation or daisy-chaining for per-phase current/temperature monitoring |
| Robust Protection Suite | Includes HS overcurrent latch, LS overcurrent cycle disable, UVLO on VIN/VDD, and thermal shutdown at 150°C |
Applications
| Server Core Voltage Regulation | GPU Core Regulators |
|---|---|
|
Use Scenario: High-efficiency, compact 1–3 V core rail for dual-socket Xeon or EPYC processors in datacenter servers. IC Role / Device Role / Timing Role: Half-bridge power stage delivering up to 55 A per phase; synchronized via controller's PWM and SYNC signals. Use Value: Enables 4+ phase VR designs with <1 mm² per-phase footprint and <2% current imbalance across phases using summed CS signals. |
Use Scenario: Dynamic voltage scaling for NVIDIA A100 or AMD MI250X GPU cores under burst workloads. IC Role / Device Role / Timing Role: Fast-transient capable power stage accepting tri-state PWM for adaptive phase activation/deactivation. Use Value: Achieves <500 ns load-step response with diode emulation (SYNC low) during light-load conditions to improve efficiency. |
| AI Accelerator Power Modules | High-Density Telecom Baseband Cards |
|
Use Scenario: Compact, thermally managed 0.8–1.2 V rails for ASIC-based AI inference accelerators in edge servers. IC Role / Device Role / Timing Role: Integrated Intelli-Phase stage providing current and temperature telemetry to host PMIC for closed-loop thermal throttling. Use Value: Junction temperature sensing (VTEMP) enables real-time die-temp-aware frequency scaling, preventing thermal throttling latency. |
Use Scenario: Multi-rail power delivery for FPGA + DSP clusters in 5G baseband units with strict space constraints. IC Role / Device Role / Timing Role: High-density half-bridge stage operating at 800 kHz to reduce output filter size while maintaining EMI compliance. Use Value: 6×6 mm TQFN package allows ≥12 A/mm² power density, reducing board area by 40% versus discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar half-bridge power stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP86957DQKTE-LF-P | 60 A rating, 1.2 MHz max fSW, same 6×6 mm TQFN, adds programmable dead time | Targeted at higher-frequency VR designs where smaller output inductors are required | Select when >1 MHz operation or fine-tuned dead time is needed; otherwise MP86884 offers better cost/performance balance at 55 A |
| ISL99390HRZ-T | 50 A rating, 4.5–16 V VIN, no integrated temperature sense, different pinout (QFN-32) | Lacks VTEMP output and tri-state PWM support; requires external thermal monitoring | Choose only if legacy design reuse mandates Intersil footprint compatibility; MP86884 provides superior sensing integration |
Compared with MP86957DQKTE-LF-P and ISL99390HRZ-T, the MP86884DQKTE-LF-P uniquely combines 55 A capability, tri-state PWM acceptance, integrated temperature sensing, and minimal dead time in a single 6×6 mm footprint-making it optimal for next-gen server VRs requiring per-phase telemetry and fast transient response.
Availability
MP86884DQKTE-LF-P is available at Aetrix Electronics and suitable for server core voltage regulation, GPU power delivery, and AI accelerator power modules requiring stable component supply, RoHS6-compliant packaging, and long-term industrial lifecycle support.
Supply support for MP86884DQKTE-LF-P 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for power management, motion control, and automotive applications.
The MP86884 belongs to MPS's Intelli-Phase™ family of integrated power stages, designed specifically for high-current, high-efficiency multi-phase buck regulators in datacenter and AI infrastructure.
FAQ
What is the recommended bootstrap capacitor value for MP86884DQKTE-LF-P?
The datasheet specifies a 0.22 µF to 1 µF ceramic capacitor between BST and SW pins. A 0.47 µF X7R 16 V capacitor is commonly used to ensure sufficient charge hold-up during high-duty-cycle operation while minimizing ESR-related losses.
Does MP86884DQKTE-LF-P support diode emulation mode?
Yes - pulling the SYNC pin low enables diode emulation mode, where the low-side FET turns off after inductor current crosses zero, reducing light-load switching losses and improving efficiency below 10% load.
How is current sensing implemented on the CS pin?
The CS pin sources 10 µA per 1 A of low-side FET current. A resistor to ground converts this to voltage (e.g., 100 Ω yields 1 mV/mA); optional RC filtering improves noise immunity without compromising bandwidth for OCP.
What is the function of the DT pin?
The DT pin adjusts dead time externally; however, the datasheet recommends leaving it floating to use the internal default setting (3 ns rising / 8 ns falling), which is optimized for most VR applications and avoids timing skew risks.
Can MP86884DQKTE-LF-P be used in single-phase configurations?
Yes - though optimized for multi-phase systems, it functions as a standalone half-bridge in single-phase buck converters. Controller interface remains identical, but current/thermal telemetry is limited to one phase.
What is the maximum allowable junction temperature?
The absolute maximum junction temperature is 150°C. Thermal shutdown activates at this threshold; sustained operation above 125°C junction temperature is not recommended for long-term reliability.
Is the EN pin level- or edge-sensitive?
The EN pin is level-sensitive: driving it low places SW in high-impedance state regardless of PWM state; returning it high resumes operation only after VDDDRV and VBST reach valid thresholds.
MP86884DQKTE-LF-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- Intelli-Phase™
- Package/Case:
- 34-PowerWFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Output Configuration:
- Half Bridge
- Applications:
- General Purpose
- Interface:
- PWM
- Load Type:
- Inductive
- Technology:
- Power MOSFET
- Rds On (Typ):
- -
- Current - Output / Channel:
- 55A
- Current - Peak Output:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Voltage - Load:
- 4.5V ~ 14V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Fault Protection:
- Current Limiting
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 34-TQFN (6x6)
MP86884DQKTE-LF-P FAQ
1.How can I place an order for MP86884DQKTE-LF-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP86884DQKTE-LF-P 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 MP86884DQKTE-LF-P reliable?
The price and inventory of MP86884DQKTE-LF-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP86884DQKTE-LF-P is usually 5 days.
3.What payment methods are accepted for MP86884DQKTE-LF-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP86884DQKTE-LF-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP86884DQKTE-LF-P?
MP86884DQKTE-LF-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP86884DQKTE-LF-P 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 MP86884DQKTE-LF-P?
For technical support, including MP86884DQKTE-LF-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP86884DQKTE-LF-P requirements.
6.How does Aetrix verify that MP86884DQKTE-LF-P is sourced from the original manufacturer or authorized distributors?
All MP86884DQKTE-LF-P 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 MP86884DQKTE-LF-P meets industry standards.
7.What is the process for return or replacement of MP86884DQKTE-LF-P?
All MP86884DQKTE-LF-P units undergo pre-shipment inspection (PSI). If there is an issue with MP86884DQKTE-LF-P, 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 MP86884DQKTE-LF-P part is unused and in its original packaging.
Return procedure for MP86884DQKTE-LF-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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