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Monolithic Power Systems Inc. MPM3695GRF-25-0022
- Part No.:
- MPM3695GRF-25-0022
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 59-PowerBQFN Module
- Datasheet:
-
MPM3695GRF-25-0022.pdf
- Description:
- DC DC CONVERTER 0.5-5.5V
- Quantity:
- Payment:
- Shipping:
Inventory:709
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Product details
Overview
MPM3695GRF-25-0022 from Monolithic Power Systems is a scalable, fully integrated DC/DC power module with PMBus 1.3 interface, delivering up to 20A continuous and 25A peak output current across 0.5V–5.5V output range. It operates from 4V–16V input (or 3V–16V with external VCC), features multi-phase constant-on-time (MCOT) control for ultra-fast transient response, and integrates full protection including OCP, OVP, UVP, and OTP. It serves as a primary VRM in high-density FPGA/ASIC power delivery systems.
For engineers reviewing the MPM3695GRF-25-0022 datasheet, MPM3695GRF-25-0022 pinout, MPM3695GRF-25-0022 application, or MPM3695GRF-25-0022 equivalent, key selection considerations include its QFN-59 package thermal performance, programmable PMBus telemetry (VIN/VOUT/IOUT/temperature/faults), auto-interleaving capability for parallel operation, and ±0.5% load/line regulation over -40°C to +125°C junction temperature.
Technical Context
The MPM3695GRF-25-0022 implements MPS's proprietary multi-phase constant-on-time (MCOT) control architecture, enabling adaptive loop compensation and sub-100ns transient response without external compensation components. Its internal 3.3V LDO powers gate drivers and logic, while the PMBus interface supports real-time configuration of switching frequency (default 600 kHz), soft-start time (2 ms), current limit (5–32 A), and fault thresholds.
It supports both single-phase and multi-phase operation via dedicated RUN signal chaining (PASS/TAKE pins), automatic interleaving, and ISUM current-sharing bus. Remote voltage sensing (VOSNS+/VOSNS−) ensures ±0.5% output accuracy under dynamic load conditions, and thermal monitoring includes programmable warning (130°C) and shutdown (145°C) thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V–16V (internal VCC) or 3V–16V (external VCC); enables direct compatibility with 5V, 12V, and 15V intermediate bus architectures. |
| Output Current | 20A continuous / 25A peak; sufficient for powering high-performance FPGAs (e.g., Xilinx Versal, Intel Agilex) at 0.8–1.2V. |
| Output Voltage Range | 0.5V–5.5V; supports core, I/O, and auxiliary rails across computing, telecom, and industrial applications. |
| Switching Frequency | Default 600 kHz (programmable); balances efficiency, size, and EMI-optimized for 10–22 µH inductors and low-ESR ceramic output capacitors. |
| Load Regulation | ±0.5% from 0A to 25A; maintains tight voltage stability during rapid load steps typical in AI accelerator workloads. |
| PMBus Compliance | PMBus 1.3 compliant; enables full telemetry read-back (VIN, VOUT, IOUT, die temperature, faults) and register-based configuration via standard system management bus. |
| Thermal Protection | Programmable over-temperature shutdown (145°C rise) and warning (130°C); prevents thermal runaway in constrained airflow environments like server blades. |
Pinout & Package
MPM3695GRF-25-0022 is housed in a thermally enhanced QFN-59 package (10 mm × 12 mm × 4 mm) with exposed thermal pad on underside for PCB heatsinking. The package integrates power MOSFETs, drivers, controller, and passive components into a single surface-mount module.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pins 52,53) | Primary input supply | Accepts 4–16V input; requires local decoupling to PGND and wide copper pour for <2 mΩ impedance path. |
| VOUT (Pins 31–35) | Regulated output node | Delivers up to 20A; connects directly to load via low-inductance plane-critical for <10 mV ripple at 25A transients. |
| VOSNS+ / VOSNS− (Pins 5,4) | Remote output voltage sense | Enables Kelvin sensing at load point; eliminates IR drop error-required for ±0.5% regulation accuracy under high-current loads. |
| SDA / SCL (Pins 41,40) | PMBus serial interface | Supports bidirectional telemetry and configuration at up to 1 MHz; requires 3.3V pull-ups per PMBus spec. |
| CTRL (Pin 43) | Digital enable/disable control | Active-high logic input (2.04V threshold); must be driven-not floated-to ensure deterministic startup/shutdown sequencing. |
| PG (Pin 44) | Power-good status indicator | Open-drain output signaling valid VOUT (>90% nominal); configurable as input/output in multi-phase daisy-chain topologies. |
| PASS / TAKE (Pins 47,48) | Multi-phase RUN signal chain | Enables automatic phase synchronization and interleaving without external clock distribution-reduces EMI and improves current sharing. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-interleaving for multi-phase operation | Eliminates need for external phase controllers-supports seamless scaling to 4+ phases with <5% current imbalance at full load. |
| True remote voltage sensing | Compensates for PCB trace resistance up to 20 mΩ, maintaining ±0.5% output accuracy even with 100 mm sense trace lengths. |
| Adaptive MCOT control | Self-tuning loop compensation enables stable operation across 0.5–5.5V VOUT and 10–100 µH inductor values-no manual tuning required. |
| PMBus-programmable fault thresholds | OVP/UVP/OTP limits adjustable via registers (e.g., OVP from 111% to 134% VREF); allows safe margining for varying load profiles and aging effects. |
| Integrated 3.3V LDO (VCC/VCC>) | Supplies internal gate drivers and logic; eliminates need for external bias rail-reduces BOM count and layout complexity. |
Applications
| AI Accelerator Power Delivery | High-Density Server VRM |
|---|---|
|
Use Scenario: Powering 12nm/7nm AI ASICs (e.g., NVIDIA A100 GPU memory rails, Google TPU v4 core supplies) requiring fast transient response and precise voltage tracking. IC Role / Device Role / Timing Role: Primary point-of-load (POL) regulator delivering 0.8V @ 20A with <50 µs recovery from 50% load step. Use Value: Adaptive MCOT control and remote sensing maintain <±10 mV deviation during 2.5 A/µs load transients-prevents timing violations in high-speed SerDes interfaces. |
Use Scenario: Dual-phase 1.8V/20A supply for Xeon Scalable CPU VDDQ or DDR5 memory subsystems in 1U rack servers. IC Role / Device Role / Timing Role: Scalable VRM stage configured in 2-phase interleaved mode to reduce input/output ripple and improve thermal distribution. Use Value: Auto-interleaving and ISUM current sharing achieve <3% phase current mismatch at 40A total load-enabling uniform thermal loading across two modules. |
| Telecom Baseband Processing | Industrial FPGA Power System |
|
Use Scenario: Powering multi-core baseband processors (e.g., Xilinx Zynq Ultrascale+ RFSoC) in 5G massive MIMO radio units with strict thermal and EMI constraints. IC Role / Device Role / Timing Role: Single-phase 1.0V @ 16A POL regulator with PMBus telemetry for real-time thermal derating and fault logging. Use Value: Integrated temperature sensor and programmable thermal warning (130°C) enable predictive fan control and graceful throttling-extending field lifetime in sealed enclosures. |
Use Scenario: Robust 3.3V/12A supply for industrial-grade FPGAs (e.g., Intel Cyclone 10 GX) operating in extended temperature (-40°C to +85°C) factory automation PLCs. IC Role / Device Role / Timing Role: Standalone DC/DC module with full protection suite (OVP/UVP/OTP/OCP) and 1% reference accuracy over full temp range. Use Value: ±0.5% line/load regulation and 1% VREF stability ensure reliable configuration bitstream loading and I/O voltage compliance-even with 15% input sag during brownout events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, PMBus-enabled DC/DC power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPM3695GRF-20-0022 | Lower peak current rating (20A vs. 25A), identical pinout, firmware, and PMBus register map; optimized for lower thermal envelope. | Better suited for space-constrained designs where 20A continuous is sufficient and board-level thermal dissipation is limited. | Select when design margin allows 20A continuous operation and long-term reliability under sustained 100% load is prioritized over peak burst capability. |
| TPS53688RTAT | Texas Instruments 30A dual-phase controller (not module); requires external power stages, discrete inductors, and PMBus-compatible LDO-higher BOM count and layout effort. | Offers greater flexibility in inductor selection and thermal partitioning but lacks integrated MOSFETs and requires full loop compensation design. | Choose only if custom inductor optimization, multi-rail coordination, or TI ecosystem integration (e.g., Fusion Digital Power GUI) is required. |
Compared with MPM3695GRF-25-0022, the -20 variant reduces thermal stress at full load while retaining identical configuration and telemetry; the TPS53688 offers higher peak current but demands significant design effort for power stage implementation and thermal management-making the MPM3695GRF-25-0022 optimal for rapid deployment of high-reliability, space-constrained POL solutions.
Availability
MPM3695GRF-25-0022 is available at Aetrix Electronics and suitable for AI accelerator power delivery, high-density server VRMs, telecom baseband processing, and industrial FPGA power systems requiring stable component supply and long-term lifecycle support.
Supply support for MPM3695GRF-25-0022 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 20 years of leadership in DC/DC conversion, motor control, and LED driver technologies.
The MPM3695 product line delivers fully integrated, scalable power modules targeting high-current, high-efficiency point-of-load applications in data centers, AI hardware, and telecom infrastructure-designed to replace discrete buck regulators with minimal external components and robust digital management.
FAQ
Is MPM3695GRF-25-0022 recommended for new designs?
No-it is explicitly marked "NOT RECOMMENDED FOR NEW DESIGNS" in the official datasheet, with MPM3695-20 cited as the preferred replacement. This reflects MPS's product lifecycle transition; the -25 retains full functionality but receives no further roadmap investment or qualification updates.
What is the purpose of the PASS and TAKE pins?
PASS and TAKE pins implement automatic RUN-signal daisy-chaining for multi-phase operation. PASS outputs the RUN signal to the next phase; TAKE accepts it from the prior phase. This eliminates external clock generators and ensures precise phase alignment and current sharing without timing skew.
Can MPM3695GRF-25-0022 operate without PMBus communication?
Yes-it functions as a standalone regulator with default settings (600 kHz, 20A current limit, 90% PG threshold). PMBus is optional for telemetry and reconfiguration; all protections (OCP/OVP/UVP/OTP) remain active regardless of bus activity.
How does the module handle thermal derating?
It uses an integrated die temperature sensor with programmable warning (130°C) and shutdown (145°C) thresholds. Derating curves show usable current drops linearly above 60°C ambient at 200 LFM airflow-e.g., ~16A at 85°C ambient-enabling predictable thermal design.
What is the minimum output capacitance required?
Per the datasheet, ≥220 µF low-ESR ceramic (X7R/X5R) is required for stability across 0.5–5.5V VOUT. For 1.8V/20A operation, 4× 100 µF (total 400 µF) is typical to meet <10 mV ripple and transient response specs under 25A load steps.
Does it support pulse-skip mode?
Yes-PMBus register 0x59 (MODE) allows selection between Continuous Conduction Mode (CCM) and Pulse-Skip Mode (PSM). PSM improves light-load efficiency (<10% load) by disabling switching cycles, reducing quiescent current to 2.5 mA.
What is the role of the ISUM pin in multi-phase configurations?
In multi-phase setups, ISUM pins are tied together to form a current-summing bus that enables automatic master-slave current balancing. Each phase contributes a proportional current reference, achieving <5% inter-phase current mismatch without external DACs or op-amps.
MPM3695GRF-25-0022 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 59-PowerBQFN Module
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 16V
- Voltage - Output 1:
- 0.5 ~ 5.5V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 20A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Remote On/Off, OCP, OTP, OVP, SCP, UVLO
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 59-QFN (10x12)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3695GRF-25-0022 FAQ
1.How can I place an order for MPM3695GRF-25-0022 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3695GRF-25-0022 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 MPM3695GRF-25-0022 reliable?
The price and inventory of MPM3695GRF-25-0022 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPM3695GRF-25-0022 is usually 5 days.
3.What payment methods are accepted for MPM3695GRF-25-0022?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3695GRF-25-0022 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3695GRF-25-0022?
MPM3695GRF-25-0022 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3695GRF-25-0022 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 MPM3695GRF-25-0022?
For technical support, including MPM3695GRF-25-0022 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3695GRF-25-0022 requirements.
6.How does Aetrix verify that MPM3695GRF-25-0022 is sourced from the original manufacturer or authorized distributors?
All MPM3695GRF-25-0022 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 MPM3695GRF-25-0022 meets industry standards.
7.What is the process for return or replacement of MPM3695GRF-25-0022?
All MPM3695GRF-25-0022 units undergo pre-shipment inspection (PSI). If there is an issue with MPM3695GRF-25-0022, 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 MPM3695GRF-25-0022 part is unused and in its original packaging.
Return procedure for MPM3695GRF-25-0022:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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