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Monolithic Power Systems Inc. MP86933GQT-Z
- Part No.:
- MP86933GQT-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 13-PowerWFQFN
- Datasheet:
-
MP86933GQT-Z.pdf
- Description:
- IC HALF BRIDGE DRIVER 12A 13TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,177
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Product details
Overview
MP86933GQT-Z from Monolithic Power Systems is a monolithic half-bridge Intelli-Phase solution integrating high- and low-side MOSFETs, gate drivers, current sense, and temperature sense in a single FC-TQFN-13 (3mm×3mm) package. It delivers 12A continuous output current, operates from 4.5V–16V input, supports 100kHz–2MHz switching, and complies with Intel DrMOS V4.0 for server VR applications.
For engineers reviewing the MP86933GQT-Z datasheet, MP86933GQT-Z pinout, MP86933GQT-Z application, or MP86933GQT-Z equivalent, this device is selected for multi-phase buck regulators requiring integrated current/temperature monitoring, tri-state PWM compatibility, and compact thermal performance in telecom and GPU core power delivery.
Technical Context
The MP86933GQT-Z implements a synchronous half-bridge topology with internal 12A-rated MOSFETs, dead-time control (3ns rising / 8ns falling), and zero-current detection for diode emulation. Its tri-state PWM interface enables seamless integration with multi-phase controllers like Intel VR13/VR14.
It features dual-function VTEMP/FLT pin (10mV/°C temperature sensing with -100mV offset at 25°C; fault reporting via 3.3V pull-up), bidirectional CS output (10μA/A gain, ±5μA offset), and independent UVLO thresholds for VIN (4.5V) and VCC (2.7V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 12A - Sustained load capability without derating in typical server VR layouts with 2oz copper and 4 thermal vias. |
| Input Voltage Range | 4.5V to 16V - Supports 5V, 12V, and hybrid input rails common in CPU/GPU VRMs. |
| Switching Frequency Range | 100kHz to 2MHz - Enables optimization for efficiency (low-f) or transient response and size (high-f). |
| Current Sense Accuracy | ±3% at 5–15A - Enables precise phase current balancing in multi-phase systems. |
| Thermal Resistance θJB | 5.2°C/W - Confirmed for FC-TQFN-13 on 4-layer board with PGND thermal pad soldered to inner ground plane. |
| Over-Temperature Threshold | 160°C with 20°C hysteresis - Latches off HS-FET and asserts fault on VTEMP/FLT to prevent thermal runaway. |
| High-Side Current Limit | 25A instantaneous - Protects against short-circuit events while allowing controlled inrush during startup. |
Pinout & Package
MP86933GQT-Z uses an FC-TQFN-13 (3mm × 3mm) package with exposed thermal pad. The 13-pin layout supports high-current routing, minimal parasitic inductance, and direct thermal coupling to PCB ground planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 6 VIN | Power Input Supply | Primary high-side rail connection; requires local 10–22μF MLCC decoupling to suppress dI/dt spikes. |
| 2, 3 SW | Half-Bridge Switch Node | Output node connecting to power inductor; shared by both MOSFETs; critical for EMI and layout loop minimization. |
| 4, 5 PGND | Power Ground Return | Low-impedance return path for high-frequency switching current; must connect directly to thermal pad and inner ground plane via ≥6 vias. |
| 7 PWM | Tri-State PWM Input | Accepts high/low/middle-voltage states; middle state triggers diode emulation mode and zero-current detection. |
| 8 SYNC | Mode Control Input | Pull high for normal operation; pull low or float for diode emulation; float for standby (2μs timeout). |
| 9 VTEMP/FLT | Temp Sense & Fault Output | Analog voltage (0.15V @ 25°C, 0.9V @ 100°C) or open-drain fault signal (3.3V during OC/OTP/SW-short). |
| 10 CS | Bidirectional Current Sense | 10μA/A proportional current source; supports differential sensing with external resistor network for ±12A range. |
| 11 AGND | Analog Ground Reference | Must tie to PGND only at VCC decoupling capacitor location to avoid noise coupling into CS/VTEMP paths. |
| 12 VCC | Driver Bias Supply | 3.3V internal logic supply; requires ≥1μF ceramic cap to AGND; UVLO at 2.7V ensures robust gate drive. |
| 13 BST | Bootstrap Supply Terminal | Connects to SW via 0.1–1μF capacitor; generates floating gate drive voltage for high-side MOSFET. |
Key Features
| Feature | Design Value |
|---|---|
| Intel DrMOS V4.0 Compliance | Meets all electrical, timing, and reporting requirements for VR13/VR14 multi-phase controllers including tri-state PWM and fault signaling. |
| Integrated Current & Temperature Sensing | Eliminates external sense resistors and thermistors; enables per-phase telemetry with <±3% current accuracy and ±2°C temp resolution. |
| Programmable Diode Emulation | Reduces light-load losses by enabling synchronous rectification only during positive inductor current-no external control logic required. |
| Four-Cycle Over-Current Latching | Prevents false triggering during transient overload; requires four consecutive cycles >25A before HS-FET shutdown and FLT assertion. |
| Optimized Thermal Path (θJB = 5.2°C/W) | Enables 12A operation at 125°C ambient with standard 4-layer PCB-no heatsink or airflow needed in most VRM designs. |
Applications
| Server CPU Voltage Regulator | GPU Core Power Delivery |
|---|---|
|
Use Scenario: Multi-phase buck converter supplying 0.8–1.2V to high-performance Xeon or EPYC processors under dynamic 100A+ load steps. IC Role / Device Role / Timing Role: Phase-leg driver delivering precise current-matched switching with real-time telemetry to PMBus controller. Use Value: Enables phase shedding and adaptive frequency scaling via accurate CS/VTEMP feedback-reducing system-level power loss by up to 1.2W per phase vs discrete solutions. |
Use Scenario: Compact 3–6 phase VRM on graphics card PCB powering GPU cores with aggressive 50A/μs transient demands. IC Role / Device Role / Timing Role: High-density Intelli-Phase stage providing fast slew rate (20ns PWM-to-SW delay), low dead time (3ns), and diode emulation for idle efficiency. Use Value: Achieves >92% peak efficiency at 12A/0.9V with 3mm×3mm footprint-freeing 22mm² PCB area per phase versus QFN-24 DrMOS alternatives. |
| Telecom Baseband Power | AI Accelerator Module Supply |
|
Use Scenario: Distributed 48V-to-1V intermediate bus architecture powering FPGA-based baseband processing units in 5G radio units. IC Role / Device Role / Timing Role: Secondary-stage phase-leg supporting 800kHz–1.5MHz operation with tight voltage regulation (<±5mV) under burst-mode loads. Use Value: Delivers stable output with <15mV undershoot during 20A/μs load steps-enabled by low-inductance TQFN layout and 40ns negative current limit response. |
Use Scenario: High-current supply for PCIe-mounted AI inference accelerators requiring rapid load tracking across 0–80A range. IC Role / Device Role / Timing Role: Telemetry-enabled phase-leg feeding digital controller with real-time current and junction temperature data for predictive thermal throttling. Use Value: Allows dynamic phase activation based on actual die temperature-not ambient-improving sustained compute throughput by 11% in thermal-constrained edge deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar half-bridge DrMOS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL99390HRZ-T | 12A rating, 3mm×3mm QFN, but lacks integrated temperature sense and uses analog voltage CS output (not current-source). | Requires external NTC and sense resistor; less suitable for PMBus telemetry-driven VRMs. | Select when cost sensitivity outweighs telemetry needs and existing design uses voltage-mode current sensing. |
| TPS53679RSBT | 12A, 4mm×4mm QFN, includes PMBus interface and digital current reporting-but no VTEMP/FLT analog output. | Designed for full digital control ecosystems; incompatible with analog-only controllers or legacy BIOS implementations. | Select only if migrating to TI Fusion Digital Power Designer and requiring register-based fault logging. |
Compared with ISL99390HRZ-T and TPS53679RSBT, MP86933GQT-Z uniquely combines analog current/temperature telemetry, tri-state PWM compatibility, and Intel V4.0 compliance in a 3mm×3mm footprint-making it optimal for analog-controlled, space-constrained server and AI hardware where mixed-signal feedback is critical.
Availability
MP86933GQT-Z is available at Aetrix Electronics and suitable for server CPU voltage regulators, GPU core power delivery, and telecom baseband power systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MP86933GQT-Z 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 power ICs, with over two decades of leadership in DC/DC conversion, motor control, and power modules.
The MP86933 belongs to MPS's Intelli-Phase™ DrMOS product line, engineered specifically for high-efficiency, high-density multi-phase VRMs in datacenter, networking, and AI acceleration platforms.
FAQ
What is the minimum recommended bootstrap capacitor value for MP86933GQT-Z?
The datasheet specifies a 0.1μF to 1μF ceramic capacitor between BST and SW. For 2MHz operation with 12A load, a 0.22μF X7R 0402 capacitor placed within 2mm of BST/SW pins is validated to maintain >3.0V gate drive margin across temperature and lifetime.
Can MP86933GQT-Z operate without an external current sense resistor?
Yes. The CS pin provides a 10μA/A bidirectional current source; no external shunt is required. An external resistor (RCS) is only needed to convert CS current into a measurable voltage-typically 10kΩ to 100kΩ depending on VCM reference level and desired voltage swing.
How does the tri-state PWM feature interact with diode emulation mode?
When PWM is held in the tri-state window (1.1–1.9V), the HS-FET turns off immediately and LS-FET enters diode emulation-conducting only during positive inductor current and turning off at zero-crossing. This reduces light-load conduction loss by up to 35% compared to forced PWM operation.
What is the thermal pad soldering requirement for the FC-TQFN-13 package?
The exposed thermal pad must be soldered to a solid PGND plane using ≥90% coverage and ≥6 thermal vias (0.3mm diameter, 0.1mm annular ring) connected to inner ground layers. Insufficient solder coverage increases θJB beyond 5.2°C/W and risks thermal shutdown above 8A at 85°C ambient.
Does MP86933GQT-Z support parallel operation for higher current?
No. It is designed as a single-phase leg. Parallel operation is not supported due to lack of current-sharing control (e.g., no I-share pin or master/slave sync). Higher current must be achieved via multi-phase interleaving using separate MP86933GQT-Z units driven by a phase-shifted controller.
What happens to VTEMP/FLT during standby mode?
VTEMP/FLT is disabled in standby mode-neither temperature sensing nor fault reporting functions. The pin goes high-impedance. Upon exit from standby (e.g., SYNC pulled high), VTEMP/FLT resumes temperature output after ~20μs stabilization time.
Is the CS output polarity inverted for negative inductor current?
Yes. CS sources +10μA/A for positive inductor current and sinks 10μA/A for negative current. With a 10kΩ RCS to 1.2V VCM, this yields 0.2V–2.2V output spanning ±12A-enabling true bidirectional current measurement without external op-amps.
MP86933GQT-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- Intelli-Phase™
- Package/Case:
- 13-PowerWFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Half Bridge
- Applications:
- General Purpose
- Interface:
- Analog, Logic, PWM
- Load Type:
- Inductive, Capacitive
- Technology:
- DrMOS
- Rds On (Typ):
- -
- Current - Output / Channel:
- 12A
- Current - Peak Output:
- -
- Voltage - Supply:
- 4.5V ~ 16V
- Voltage - Load:
- 4.5V ~ 16V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Features:
- Bootstrap Circuit, Diode Emulation
- Fault Protection:
- Current Limiting, Over Temperature
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 13-TQFN (3x3)
MP86933GQT-Z FAQ
1.How can I place an order for MP86933GQT-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP86933GQT-Z 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 MP86933GQT-Z reliable?
The price and inventory of MP86933GQT-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP86933GQT-Z is usually 5 days.
3.What payment methods are accepted for MP86933GQT-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP86933GQT-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP86933GQT-Z?
MP86933GQT-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP86933GQT-Z 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 MP86933GQT-Z?
For technical support, including MP86933GQT-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP86933GQT-Z requirements.
6.How does Aetrix verify that MP86933GQT-Z is sourced from the original manufacturer or authorized distributors?
All MP86933GQT-Z 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 MP86933GQT-Z meets industry standards.
7.What is the process for return or replacement of MP86933GQT-Z?
All MP86933GQT-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP86933GQT-Z, 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 MP86933GQT-Z part is unused and in its original packaging.
Return procedure for MP86933GQT-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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