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Monolithic Power Systems Inc. MPM3690GBF-50D-0001-T
- Part No.:
- MPM3690GBF-50D-0001-T
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 144-BBGA Module
- Datasheet:
-
MPM3690GBF-50D-0001-T.pdf
- Description:
- 16V, 50A, HIGH-EFFICIENCY DC/DC
- Quantity:
- Payment:
- Shipping:
Inventory:323
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Product details
Overview
MPM3690GBF-50D-0001-T from Monolithic Power Systems is a 50A, 16V-input fully integrated DC/DC power module with PMBus 1.3 interface, dual-phase interleaved architecture, MCOT control, and remote voltage sensing. It delivers ±1% reference accuracy over –40°C to +125°C and supports 0.5V–3.6V programmable output for FPGA/ASIC core rails in high-density telecom and industrial systems.
For engineers reviewing the MPM3690GBF-50D-0001-T datasheet, MPM3690GBF-50D-0001-T pinout, MPM3690GBF-50D-0001-T application, or MPM3690GBF-50D-0001-T equivalent, this module provides verified telemetry (VIN/VOUT/IOUT/temperature), configurable OCP/OVP/OTP thresholds via PMBus, and BGA-based thermal performance up to 50A at 1.2V with <±0.5% load regulation.
Technical Context
The device implements a proprietary multi-phase constant-on-time (MCOT) control scheme with master/slave phase coordination, enabling ultra-fast transient response (<50ns inter-phase timing) and stable operation with zero-ESR ceramic capacitors via internal RAMP compensation. It integrates two interleaved buck converters, power inductor, and passive components into a single molded BGA package.
Operation supports forced continuous conduction mode (FCCM) or pulse-skipping at four selectable switching frequencies (400–800 kHz); soft-start time (1–16 ms), output discharge (60Ω FET), and per-phase valley current limiting (3–27 A) are all PMBus-configurable. Remote sense inputs (VS1P/VS1N/VS2N) enable precise regulation at point-of-load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3V–16V (with external 3.3V VCC bias) or 4V–16V (internal VCC bias) |
| Output Voltage Range | 0.5V–3.6V, programmable via FB resistor divider or PMBus |
| Continuous Output Current | 50A at ≤1.8V output; derated above 1.8V per thermal curves |
| Reference Accuracy | ±1% over –40°C to +125°C - ensures stable core rail tolerance under thermal stress |
| PMBus Compliance | PMBus 1.3 - enables full telemetry readback (VIN/VOUT/IOUT/temp/faults) and configuration of OCP/OVP/OTP/UVLO/soft-start |
| Thermal Protection | OTP trip at 150°C (rising), 125°C (falling); warning at 130°C/105°C - prevents latch-off during sustained overload |
| Efficiency Peak | ≥95% at 12VIN/1.2VOUT/50A with external 3.3V VCC and 800kHz fSW |
Pinout & Package
Package: BGA (16mm × 16mm × 5.18mm), MSL Level 3, 144-pin grid (12×12). Thermal pad on underside requires solder paste stencil and reflow profile matching MPS EVM3690-50D-BF-00A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (A1–A5, A8–A12, B1–B5, B8–B12, C1–C4, C9–C12) | Power output terminals | Parallel-connected high-current output pads - must be routed with ≥3 oz copper and thermal vias to inner ground planes |
| GND (A6, A7, B6, B7, D1–D4, D9–D12, E1–E4, E10–E12, F1–F3, F6, F7, F10–F12, G1, G3, G7, G10, G12, H1, H2, H3, H4, H5, H6, H7, H9–H12, J1, J5, J8, J12, K1, K5–K8, K12, L1, L12, M1, M12, etc.) | Power and signal ground | Multi-point grounding required - connect all GND pins directly to solid internal ground plane to minimize noise coupling into FB/VS paths |
| VS1P / VS1N / VS2N (C5, D6, C7) | Remote sense inputs | VS1P connects to load-side VOUT; VS1N/VS2N connect to load-side GND - enables <±0.5% load regulation independent of PCB IR drop |
| FB1 / FB2 (D5, D7) | Feedback voltage inputs | Internally tied; 60.4kΩ resistor from FB1 to VS1N sets default 1.2V output - resistor ratio determines final VOUT with ±1% reference accuracy |
| EN1 / EN2 (F5, F9) | Enable control inputs | Logic-high active; must be driven (not floated); tied together - controls global startup/shutdown and initiates soft-start sequence |
| PG1 / PG2 (G9, G8) | Power-good open-drain outputs | Tied together; pulled high externally - asserts low if VOUT deviates >6% from target or fault occurs (OCP/OVP/OTP) |
| SDA / SCL1 / SCL2 (G6, G5, G4) | PMBus serial interface | SCL1/SCL2 tied; SDA bidirectional - supports 10–1000 kHz clock; requires 3.3V pull-ups and noise filtering per PMBus spec |
| ALT (F4) | Alert output | Active-low open-drain - signals bus-level faults (e.g., communication timeout, register access error) requiring host intervention |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase interleaved MCOT control | Enables 50A output in compact BGA while reducing input/output ripple by >50% vs. single-phase, easing capacitor selection |
| Configurable per-phase valley OCP (3–27 A) | Prevents MOSFET overstress during short-circuit events; threshold set via PMBus register D7h without hardware change |
| Integrated output discharge FET (60Ω) | Ensures rapid VOUT ramp-down during shutdown - critical for sequencing-sensitive ASIC/FPGA power domains |
| Remote differential voltage sensing (VS1P/VS1N) | Compensates for up to 100 mV IR drop across PCB traces, maintaining ±0.5% regulation at point-of-load |
| Thermal warning and fault thresholds | Separate 130°C/105°C warning and 150°C/125°C shutdown points allow graceful throttling before hard fault |
Applications
| Telecom Baseband Processing | FPGA Core Power Delivery |
|---|---|
Use Scenario: High-throughput 5G baseband units requiring stable 1.2V/50A supply with fast load transients from digital signal processing bursts. IC Role / Device Role / Timing Role: Primary core voltage regulator with PMBus telemetry for real-time thermal and current monitoring across distributed RU/DU units. Use Value: Interleaved MCOT control limits output voltage deviation to <15mV during 0→25A/10A/µs load steps - avoids DSP pipeline stalls. | Use Scenario: Multi-million-LUT FPGA in industrial vision system demanding tightly regulated 0.8V–1.2V core rail with sequencing compliance. IC Role / Device Role / Timing Role: Single-package solution replacing discrete controller + DrMOS + inductor - reduces layout area by 40% vs. discrete alternatives. Use Value: Remote sense and ±1% reference accuracy maintain <±12mV tolerance at FPGA die ball, eliminating need for external margining DACs. |
| AI Accelerator Board Power | Industrial PLC CPU Module |
Use Scenario: Edge AI inference card with heterogeneous compute (CPU+GPU+NPU) drawing dynamic 40–50A at 1.0V under thermal constraints. IC Role / Device Role / Timing Role: Dual-phase power stage with thermal derating logic - adjusts max current based on ambient temp and airflow (no airflow: 32A @ 60°C). Use Value: On-die temperature telemetry and programmable OTP thresholds enable predictive thermal management in fanless enclosures. | Use Scenario: Programmable logic controller CPU module operating continuously in 70°C cabinet environments with strict uptime requirements. IC Role / Device Role / Timing Role: Mission-critical 1.8V/30A supply with hiccup-mode OCP and latch-off fault recovery - minimizes unplanned downtime. Use Value: PMBus-configurable UVLO (2.65–3.1V turn-on) prevents brownout-induced firmware corruption during unstable AC-DC converter output. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, PMBus-enabled power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS53688RTAT | 40A max, 3–16VIN, 0.5–2.5VOUT, TI's D-CAP3 control; no integrated inductor | Requires external 0.33µH shielded inductor and discrete MOSFETs - increases BOM count and layout complexity | Select when design requires TI ecosystem compatibility or discrete component flexibility for thermal tuning. |
| ISL91302BRUZ-T7A | 30A dual-phase, 2.5–5.5VIN, 0.3–1.5VOUT, Renesas R4 control; integrated inductor but no PMBus | Lacks telemetry and configuration - relies on analog resistors for OVP/UVP; no remote sense capability | Select for cost-sensitive, fixed-function applications where host microcontroller telemetry is unavailable. |
Compared with TPS53688RTAT and ISL91302BRUZ-T7A, the MPM3690GBF-50D-0001-T delivers 25% higher current density in same footprint, eliminates external magnetics, and provides full PMBus observability - reducing validation time for safety-critical telecom deployments.
Availability
MPM3690GBF-50D-0001-T is available at Aetrix Electronics and suitable for telecom baseband processing, FPGA core power delivery, AI accelerator board power, and industrial PLC CPU modules requiring stable component supply with full lifecycle support.
Supply support for MPM3690GBF-50D-0001-T 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) designs high-performance power management semiconductors for computing, telecom, automotive, and industrial markets, emphasizing integration, efficiency, and thermal robustness.
The MPM3690 product line targets high-current, space-constrained applications such as 5G infrastructure and AI accelerators, delivering complete power solutions with embedded magnetics and digital control in industry-standard BGA packages.
FAQ
What is the minimum recommended input capacitance for MPM3690GBF-50D-0001-T at 12VIN?
The datasheet specifies ≥4×47µF X5R/X7R ceramic input capacitors (total ≥188µF) placed within 5mm of VIN/GND pins. This minimizes high-frequency switching noise and prevents input voltage droop during 50A load steps. Use 1206 or larger case sizes with low ESL construction.
Can the MPM3690GBF-50D-0001-T operate without an external 3.3V VCC bias?
Yes - it supports internal VCC bias for 4V–16V input operation. However, external 3.3V bias improves light-load efficiency and enables full MTP programming. With internal bias, MTP write functionality is disabled per datasheet note (5).
How is remote sensing implemented on the MPM3690GBF-50D-0001-T?
Remote sensing uses three dedicated pins: VS1P connects to the load-side VOUT node, VS1N and VS2N connect together to the load-side GND node. The internal amplifier compares these differential inputs to the FB reference, correcting for PCB trace resistance - achieving <±0.5% load regulation.
What protection features trigger automatic recovery versus latch-off?
OCP and OTP support both hiccup mode (auto-retry after cooldown) and latch-off (requires VCC recycle) depending on PMBus register D7h bit[7] and D6h bit[6]. UVP and OVP defaults to latch-off; configuration is retained in MTP memory across power cycles.
Is the MPM3690GBF-50D-0001-T RoHS and REACH compliant?
Yes - all MPS parts, including MPM3690GBF-50D-0001-T, are lead-free, halogen-free, and fully compliant with EU RoHS Directive 2011/65/EU and REACH Regulation EC 1907/2006. Green status documentation is available on the MPS Quality Assurance portal.
What is the thermal resistance (θJA) of the MPM3690GBF-50D-0001-T on a standard 4-layer PCB?
Measured θJA is 7.8°C/W on the EVM3690-50D-BF-00A evaluation board (10cm × 10cm, 4-layer, 2oz copper). Actual value depends on PCB stack-up, copper area, and airflow - thermal derating curves in datasheet Figure 11 show max current vs. ambient temperature for no-airflow and with-airflow conditions.
Does the PMBus interface support write-protection of configuration registers?
Yes - register 0x7F (Write Protect) enables hardware lock of all MTP-stored settings (VOUT, soft-start, OVP thresholds, etc.). Once enabled, changes require physical reset of the WP bit via PMBus command 0x10, preventing accidental reconfiguration during field operation.
MPM3690GBF-50D-0001-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 144-BBGA 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 ~ 3.6V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 50A
- Power (Watts):
- 180 W
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Adjustable Output, PMBus™, Remote Sense
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-BGA (16x16)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3690GBF-50D-0001-T FAQ
1.How can I place an order for MPM3690GBF-50D-0001-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3690GBF-50D-0001-T 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 MPM3690GBF-50D-0001-T reliable?
The price and inventory of MPM3690GBF-50D-0001-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPM3690GBF-50D-0001-T is usually 5 days.
3.What payment methods are accepted for MPM3690GBF-50D-0001-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3690GBF-50D-0001-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3690GBF-50D-0001-T?
MPM3690GBF-50D-0001-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3690GBF-50D-0001-T 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 MPM3690GBF-50D-0001-T?
For technical support, including MPM3690GBF-50D-0001-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3690GBF-50D-0001-T requirements.
6.How does Aetrix verify that MPM3690GBF-50D-0001-T is sourced from the original manufacturer or authorized distributors?
All MPM3690GBF-50D-0001-T 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 MPM3690GBF-50D-0001-T meets industry standards.
7.What is the process for return or replacement of MPM3690GBF-50D-0001-T?
All MPM3690GBF-50D-0001-T units undergo pre-shipment inspection (PSI). If there is an issue with MPM3690GBF-50D-0001-T, 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 MPM3690GBF-50D-0001-T part is unused and in its original packaging.
Return procedure for MPM3690GBF-50D-0001-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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