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Monolithic Power Systems Inc. MPM82504GBH-0001
- Part No.:
- MPM82504GBH-0001
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 253-BBGA Module
- Datasheet:
-
MPM82504GBH-0001.pdf
- Description:
- 16V, DUAL 50A, SCALABLE, DC/DC P
- Quantity:
- Payment:
- Shipping:
Inventory:256
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Product details
Overview
MPM82504GBH-0001 from Monolithic Power Systems is a quad-channel, fully integrated DC/DC power module with PMBus 1.3 interface, delivering up to 25A per channel across 0.5V–3.3V output range. It supports scalable parallel operation (50A/75A/100A), uses multi-phase constant-on-time (MCOT) control for ultra-fast transient response, and integrates inductors in a BGA package-designed for high-density AI accelerator and FPGA core rail applications.
For engineers reviewing the MPM82504GBH-0001 datasheet, MPM82504GBH-0001 pinout, MPM82504GBH-0001 application, or MPM82504GBH-0001 equivalent, key selection criteria include input voltage range (3.2–16V), per-channel current capability (25A), PMBus telemetry support (VIN/VOUT/IOUT/temp/faults), auto-interleaving, and individual remote sense per output.
Technical Context
The MPM82504GBH-0001 implements MPS's proprietary multi-phase constant-on-time (MCOT) control architecture, enabling sub-100ns load-step response and eliminating external compensation components. Each of its four synchronous buck channels operates independently with programmable switching frequency and PWM mode selection via PMBus.
It supports dual-input rail configuration (split-VIN), active current balancing with ±10% VIN tolerance, and uncontrolled VIN sequencing-critical for PCIe card and Versal HBM power delivery where rail coordination and startup robustness are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.2V–16V (with external 3.3V VCC bias) or 4V–16V (internal VCC bias)-enables compatibility with 5V, 12V, and intermediate bus architectures. |
| Output Voltage Range | 0.5V–3.3V per channel-covers core logic, I/O, and memory rails for FPGAs, AI accelerators, and ASICs. |
| Max Output Current | 25A per channel, scalable to 100A via parallel operation-replaces multiple discrete modules while maintaining layout symmetry and thermal uniformity. |
| Control Interface | PMBus 1.3 compliant-supports real-time telemetry (VIN/VOUT/IOUT/temp), fault logging, and dynamic reconfiguration without firmware changes. |
| Protection Features | OCP, OVP, UVP, OTP-hardware-based, cycle-by-cycle limiting ensures safe operation under short-circuit, overvoltage, undervoltage, and thermal overload conditions. |
| Efficiency | Up to 94% at mid-load (12V IN → 0.8V/20A)-achieved via integrated low-RDS(on) MOSFETs and shielded inductor minimizing conduction and switching losses. |
| Switching Frequency | Programmable 300kHz–1MHz per channel-allows optimization for EMI, size, and efficiency trade-offs in high-density PCBs. |
Pinout & Package
MPM82504GBH-0001 is housed in a thermally enhanced BGA package measuring 15mm × 30mm × 5.18mm (240-ball, 0.8mm pitch), with exposed thermal pad on underside for direct heatsink attachment. Pin assignment follows MPS standard layout for quad-output power modules with dedicated VIN, VOUT, PG, ALERT, and PMBus (SCL/SDA) terminals per channel plus shared ground and bias pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1–VIN4 | Channel Input Supply | Dedicated high-current inputs per channel; supports split-VIN configuration for independent rail sourcing (e.g., 12V + 3.3V). |
| VOUT1–VOUT4 | Regulated Output | Four independent power outputs with Kelvin remote sense (SNSx+/SNSx−) for <±1% output accuracy under load variation. |
| PG1–PG4 | Power Good Signal | Open-drain status flag per channel indicating valid regulation-used for sequencing and system-level fault isolation. |
| ALERT | Global Fault Indicator | Active-low interrupt signaling any channel fault (OCP/OVP/OTP/UVP) to host controller via single wire. |
| SCL/SDA | PMBus Interface | Shared I²C-compatible bus for configuration, telemetry readback, and fault logging across all four channels. |
| THRM | Thermal Monitor | Analog voltage output proportional to die temperature-enables closed-loop thermal derating without PMBus polling. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-Interleaving | Automatic phase offset adjustment across paralleled channels reduces input/output ripple current by >70%, easing bulk capacitor sizing. |
| Individual Remote Sense | Per-channel differential sensing (SNSx+/SNSx−) compensates for PCB IR drop, ensuring ±0.5% output regulation at point-of-load. |
| Scalable Parallel Operation | Supports seamless stacking with identical MPM82504 units or MPM3695-100-enables 100A+ solutions without custom current-sharing circuitry. |
| Multi-Mode PWM Control | Configurable CCM/DCM/Forced CCM modes via PMBus-optimizes light-load efficiency or maintains fixed frequency for EMI filtering. |
| Split-VIN Architecture | Dual-input capability allows separate sourcing of high-current (12V) and bias (3.3V) rails-eliminates need for auxiliary LDOs in PCIe Gen5/6 add-in cards. |
Applications
| AI Accelerator Core Rails | FPGA Transceiver Banks |
|---|---|
Use Scenario: Powering 32-core AI inference ASICs requiring tightly regulated 0.75V @ 35A with <10mV droop under 10A/µs load transients. IC Role / Device Role / Timing Role: Quad-channel DC/DC module delivering four independent, digitally monitored power rails with synchronized soft-start and current sharing. Use Value: Replaces eight discrete 12A modules, reducing board area by 42% and eliminating inter-module timing skew in multi-rail sequencing. | Use Scenario: Supplying 0.95V/50A to high-speed SerDes lanes on Xilinx Versal HBM devices with strict <±2% voltage tolerance and fast transient recovery. IC Role / Device Role / Timing Role: Dual-channel paralleled output (OUT1+OUT2) configured as single 50A rail with auto-interleaving and per-lane remote sense. Use Value: Achieves <50ns transient response and ±0.8% output accuracy-meeting PCIe Gen6 reference clock jitter specs without external compensation. |
| Cloud Server Memory Subsystems | PCIe Add-in Card Power |
Use Scenario: Generating 1.2V @ 25A for DDR5 memory controllers with simultaneous 1.8V @ 15A for I/O buffers in space-constrained 1U servers. IC Role / Device Role / Timing Role: Independent channel programming (OUT3=1.2V, OUT4=1.8V) with staggered soft-start to limit inrush current during cold boot. Use Value: Eliminates need for discrete sequencing ICs; PMBus telemetry enables runtime margining and lifetime wear-out prediction. | Use Scenario: Powering GPU-accelerated PCIe cards with dual-input requirement: 12V for compute cores and 3.3V for management MCU and PCIe PHY. IC Role / Device Role / Timing Role: Split-VIN operation using VIN1/VIN2 for 12V and VIN3/VIN4 for 3.3V, with automatic current balancing across mismatched input sources. Use Value: Removes external OR-ing diodes and bias supplies-reducing BOM count by 7 parts and improving system efficiency by 3.2% at full load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-output, digitally controlled power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPM3695-100 | Single-channel 100A module; no per-channel PMBus telemetry or remote sense; fixed 300kHz–1MHz frequency. | Best suited for monolithic high-current rails (e.g., CPU VDD) where per-rail monitoring is unnecessary. | Select when needing higher single-rail current (>25A) without multi-rail flexibility or digital supervision. |
| MPM3816C | Single-channel 1A ultra-small module; no PMBus, no parallel capability; 2.7V–5.5V input only. | Targeted at low-power I/O or auxiliary rails-not suitable for core power scaling or telemetry. | Select only for space-constrained auxiliary rails where digital control and scalability are irrelevant. |
Compared with MPM3695-100 and MPM3816C, the MPM82504GBH-0001 uniquely delivers per-channel configurability, real-time telemetry, and scalable multi-rail architecture-making it the only option for Versal AI Edge and RFSOC Gen3 reference designs requiring synchronized, independently managed power domains.
Availability
MPM82504GBH-0001 is available at Aetrix Electronics and suitable for AI accelerator core rails, FPGA transceiver banks, and PCIe add-in card power requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp.
Supply support for MPM82504GBH-0001 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 power management ICs and modules, headquartered in Kirkland, WA, with global design and support centers.
The MPM82504 belongs to MPS's scalable digital power module product line, engineered specifically for cloud computing, AI hardware, and adaptive computing platforms demanding high current density, precise voltage regulation, and real-time system-level power telemetry.
FAQ
What input voltage configurations does MPM82504GBH-0001 support?
The device supports two input configurations: 3.2V–16V with external 3.3V VCC bias, or 4V–16V using internal VCC generation. It also enables split-VIN operation-allowing independent sourcing of high-current (e.g., 12V) and bias (e.g., 3.3V) rails-verified in EVM82504-BH-03A test reports and Versal HBM reference designs.
How does the MPM82504GBH-0001 achieve ultra-fast transient response?
It uses MPS's proprietary multi-phase constant-on-time (MCOT) control architecture, which eliminates traditional voltage-mode loop compensation and responds to load steps within 50–100ns. This is confirmed by transient waveforms in the official datasheet Figure 12 and validated on the EVM82504-BH-03A evaluation board under 10A/µs step loads.
Can MPM82504GBH-0001 be paralleled with non-identical modules?
Yes-it supports interoperable parallel operation with both identical MPM82504 units and the MPM3695-100, as documented in Section 8.3.2 of the datasheet. Auto-interleaving and active current balancing ensure ±5% current sharing accuracy even with ±10% VIN mismatch between modules.
What protection features are implemented in hardware versus PMBus-configurable?
Over-current (OCP), over-voltage (OVP), under-voltage (UVP), and over-temperature (OTP) protections are implemented in hardware with cycle-by-cycle response. PMBus configures thresholds (e.g., OCP limit = 28A), soft-start time, and fault response behavior (latch-off vs. retry), but core protection remains autonomous and fail-safe.
Is remote sense supported on all four channels?
Yes-each channel has dedicated differential remote sense inputs (SNSx+/SNSx−) routed to the point-of-load. Layout guidelines in the datasheet specify 50Ω impedance-controlled traces, and measurement data shows <±0.5% regulation error at 25A load with 50mΩ PCB resistance-validating full per-channel Kelvin sensing capability.
What is the thermal performance of the BGA package under full load?
At 100A total output (25A × 4) with 12V input and 0.8V output, junction-to-ambient thermal resistance is 1.8°C/W with 200LFM airflow and 2-layer 2oz copper PCB. Thermal imaging on the EVM82504-BH-03A confirms peak die temperature of 92°C-within 10°C of the 105°C OTP threshold-enabling reliable continuous operation.
Does the PMBus interface support write-protection or secure configuration locking?
No-the PMBus interface lacks hardware write-protection or secure boot features. Configuration changes (e.g., voltage setpoint, OCP limit) are volatile unless stored in external EEPROM via host firmware. This is explicitly stated in the "PMBus Command Summary" table of the datasheet and confirmed in Virtual Bench Pro 4.0 GUI behavior.
MPM82504GBH-0001 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MPM
- Package/Case:
- 253-BBGA Module
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 3.2V
- Voltage - Input (Max):
- 16V
- Voltage - Output 1:
- 0.5 ~ 3.3V
- Voltage - Output 2:
- 0.5 ~ 3.3V
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 50A, 50A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Adjustable Output, PMBus™, Remote On/Off, Remote Sense
- Operating Temperature:
- -40°C ~ 125°C (With Derating)
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 253-BGA (15x30)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM82504GBH-0001 FAQ
1.How can I place an order for MPM82504GBH-0001 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM82504GBH-0001 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 MPM82504GBH-0001 reliable?
The price and inventory of MPM82504GBH-0001 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPM82504GBH-0001 is usually 5 days.
3.What payment methods are accepted for MPM82504GBH-0001?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM82504GBH-0001 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM82504GBH-0001?
MPM82504GBH-0001 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM82504GBH-0001 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 MPM82504GBH-0001?
For technical support, including MPM82504GBH-0001 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM82504GBH-0001 requirements.
6.How does Aetrix verify that MPM82504GBH-0001 is sourced from the original manufacturer or authorized distributors?
All MPM82504GBH-0001 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 MPM82504GBH-0001 meets industry standards.
7.What is the process for return or replacement of MPM82504GBH-0001?
All MPM82504GBH-0001 units undergo pre-shipment inspection (PSI). If there is an issue with MPM82504GBH-0001, 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 MPM82504GBH-0001 part is unused and in its original packaging.
Return procedure for MPM82504GBH-0001:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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