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Monolithic Power Systems Inc. MPM3690GBF-30A-T
- Part No.:
- MPM3690GBF-30A-T
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 144-BBGA Module
- Datasheet:
-
MPM3690GBF-30A-T.pdf
- Description:
- DC DC CONVERTER 2X3.3V
- Quantity:
- Payment:
- Shipping:
Inventory:140
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Product details
Overview
MPM3690GBF-30A-T from Monolithic Power Systems is a dual-output 18A power module integrating two monolithic DC/DC converters, power inductors, and passive components in a single BGA package. It operates from 4V–16V input, delivers independently adjustable 0.6V–3.3V outputs per channel, and uses multi-phase constant-on-time (MCOT) control for ultra-fast transient response-critical for FPGA core rail sequencing in telecom infrastructure.
For engineers reviewing the MPM3690GBF-30A-T datasheet, MPM3690GBF-30A-T pinout, MPM3690GBF-30A-T application, or MPM3690GBF-30A-T equivalent, this module supports dual-channel interleaved operation with differential remote sensing, programmable soft-start, and configurable switching frequency-key selection criteria for high-current, space-constrained industrial power systems.
Technical Context
The MPM3690GBF-30A-T implements MCOT control with master/slave phase coordination, enabling sub-50ns inter-phase timing for load transients up to 10A/µs. Each channel features independent feedback (FB1/FB2), remote sense (VS1P/VS1N, VS2P/VS2N), and enable (EN1/EN2) with dedicated soft-start (SS1/SS2) and frequency-set (FSET1/FSET2) pins.
It integrates dual 0.22µH inductors and supports forced continuous conduction mode (FCCM) via MODE pin pull-up. Protection includes cycle-by-cycle valley over-current detection (24A per phase), ±4% output voltage accuracy, and selectable hiccup/latch-off behavior via PMODE pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 16V - supports wide-input industrial and telecom supplies without external pre-regulation. |
| Output Current (per channel) | 18A continuous - enables dual-rail 1.2V/18A FPGA core and I/O supply from one compact module. |
| Output Voltage Range | 0.6V to 3.3V - covers ASIC, GPU, and DDR memory rail requirements with single-resistor feedback programming. |
| Switching Frequency | 400kHz to 1MHz - adjustable via external resistor to optimize efficiency vs. EMI trade-offs in dense PCB layouts. |
| Feedback Accuracy | ±1% (594–606mV) - ensures tight regulation under dynamic load steps critical for sub-1V digital logic rails. |
| Thermal Shutdown Threshold | 160°C - protects against sustained overload while allowing full 125°C junction operation in convection-cooled enclosures. |
| Package Dimensions | 16mm × 16mm × 5.18mm BGA - provides high power density with thermal pad for direct heatsink attachment or PCB copper pour. |
Pinout & Package
BGA package (16mm × 16mm × 5.18mm) with 144-pin grid, thermal pad on underside, and MSL Level 3 moisture sensitivity rating. Designed for reflow soldering with exposed thermal pad connected to internal GND plane for optimal heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT1 (A1–A5, B1–B5, C1–C4) | Channel 1 power output | 18A current-carrying path; multiple parallel pins reduce IR drop and thermal resistance for high-current routing. |
| VOUT2 (A8–A12, B8–B12, C9–C12) | Channel 2 power output | Independent 18A output with separate feedback and remote sense-enables asymmetric rail generation (e.g., 1.2V/18A + 1.8V/18A). |
| FB1 / FB2 | Output voltage feedback inputs | High-impedance (50–100nA) inputs accepting resistor-divider networks; referenced to VS1N/VS2N for remote sensing accuracy. |
| VS1P/VS1N, VS2P/VS2N | Differential remote sense terminals | Enable Kelvin connection to load point-eliminates PCB trace IR error for ±0.5% total regulation at full load. |
| EN1 / EN2 | Independent enable inputs | Logic-level (VIH = 2.15V) controls allow staggered startup sequencing between channels to limit inrush current. |
| PG1 / PG2 | Open-drain power-good indicators | Assert low when VOUT reaches 92.5% of target; used for system-level power sequencing and fault monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 18A output configuration | Enables independent regulation of two high-current rails-replaces two discrete 18A modules, saving >35% board area. |
| Multi-phase COT control | Delivers <50ns inter-phase timing for 10A/µs load steps-reduces required output capacitance by up to 40% versus peak-current-mode controllers. |
| Programmable soft-start (SS1/SS2) | Capacitor-adjustable tSS (e.g., 10µF → 300ms) prevents inrush-induced voltage droop during cold start of multi-rail systems. |
| Differential remote sensing (VSxP/VSxN) | Compensates for up to 100mV IR drop across PCB traces-maintains ±0.5% regulation at 18A even with 2oz copper and 50mm trace length. |
| Selectable protection mode (PMODE) | Pull-to-GND enables latch-off for safety-critical systems; pull-to-VCC enables auto-retry for unattended telecom equipment. |
Applications
| Telecom Baseband Processing | FPGA Core & I/O Power |
|---|---|
Use Scenario: Powering dual-voltage domains (1.0V core, 1.8V I/O) in 5G massive MIMO baseband units with strict thermal limits. IC Role / Device Role / Timing Role: Dual-channel power module delivering synchronized, sequenced 18A outputs with <100µs transient recovery. Use Value: Eliminates need for external sequencing ICs and reduces thermal footprint by 28% vs. discrete solutions. | Use Scenario: Supplying Xilinx Versal ACAP core (1.0V/18A) and PL I/O banks (1.8V/18A) in edge AI inference accelerators. IC Role / Device Role / Timing Role: Single-package solution providing independent soft-start, remote sensing, and power-good signaling per rail. Use Value: Achieves ±0.7% total output regulation across -40°C to +85°C ambient with no derating up to 125°C junction. |
| Industrial PLC CPU Power | High-Density Server Management ASIC |
Use Scenario: Generating 1.2V/18A and 3.3V/18A rails for ARM-based real-time controller SoCs in factory automation PLCs. IC Role / Device Role / Timing Role: Dual-output module supporting asymmetric voltage programming and independent enable control for fail-safe shutdown. Use Value: Integrates inductor and compensation-reduces BOM count by 22 components and eliminates manual loop tuning. | Use Scenario: Powering dual-core BMC (Baseboard Management Controller) ASICs requiring tightly regulated 0.85V/18A and 1.1V/18A rails. IC Role / Device Role / Timing Role: High-accuracy (±1%) MCOT regulator with differential sensing to maintain sub-10mV ripple under 10A/µs load steps. Use Value: Enables compliance with PCIe 5.0 power integrity specs without additional post-regulation LDOs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output high-current power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPM3690GBF-20A | Dual 13A output, same 4V–16V input and 0.6V–3.3V output range, identical BGA package and pinout. | Lower current capacity suits mid-range FPGAs (e.g., Xilinx Artix-7) where 18A headroom is unnecessary. | Select when thermal budget or cost constraints outweigh need for 18A margin; drop-in replacement with no layout change. |
| MPM3690GBF-50A | Dual 25A output, reduced max output voltage (0.6V–1.8V), same package and pinout. | Targeted at next-gen AI accelerators requiring higher current at sub-1.2V voltages-unsuitable for 3.3V I/O rails. | Choose only for <1.2V, >20A applications; verify VOUT range compatibility before substitution. |
Compared with MPM3690GBF-20A and MPM3690GBF-50A, the MPM3690GBF-30A offers optimal balance of 18A/channel current, full 0.6V–3.3V programmability, and proven thermal performance in 1U telecom chassis-making it the default choice for new designs requiring margin and flexibility.
Availability
MPM3690GBF-30A-T is available at Aetrix Electronics and suitable for telecom baseband processing, FPGA power delivery, and industrial PLC CPU power requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MPM3690GBF-30A-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) is a fabless semiconductor company specializing in high-performance power management ICs and modules, with design centers in the US, China, and Taiwan.
The MPM3690 product line delivers integrated power modules for high-current, space-constrained applications in telecom, datacenter, and industrial systems-designed to replace discrete buck converters and inductors while maintaining design flexibility and reliability.
FAQ
What is the maximum recommended PCB copper thickness for thermal relief under the MPM3690GBF-30A-T thermal pad?
The thermal pad requires direct connection to ≥2 oz (70 µm) internal GND planes with ≥8 thermal vias (0.3mm diameter, filled and plated) per square mm. For convection-cooled designs, 4-layer boards with 2 oz outer layers and 3 oz inner GND planes achieve ≤25°C case rise at 18A/channel. Thicker copper (>3 oz) yields diminishing returns due to solder joint thermal resistance.
Can MPM3690GBF-30A-T operate with only one channel enabled while the other is disabled?
Yes-EN1 and EN2 are fully independent. Disabling one channel (ENx = low) places its output in high-impedance state with active discharge (50Ω FET), preventing backfeed. The enabled channel maintains full regulation and transient response. No derating is required, but thermal design must account for asymmetric power dissipation.
How does the RAMP1/RAMP2 pin setting affect stability with ceramic output capacitors?
For ceramic-only output caps (ESR <5mΩ), float RAMP1/RAMP2 to select high internal ramp-this suppresses subharmonic oscillation and improves phase margin. With hybrid (ceramic + POSCAP) banks, pull RAMPx low for low ramp to preserve fast transient response without compromising stability at light loads.
What is the minimum input capacitance required for stable operation at 36A total output?
At 16V input and 36A total load, ≥470µF of low-ESR (≤5mΩ) input capacitance is required-distributed as eight 47µF/16V X5R MLCCs (0805) placed within 5mm of VIN/GND pins. This limits input ripple to <120mVpp and prevents UVLO triggering during 10A/µs load steps.
Does MPM3690GBF-30A-T support output voltage tracking during startup?
No-MPM3690GBF-30A-T lacks dedicated tracking pins. However, synchronous enable (EN1 = EN2) combined with matched soft-start capacitors (CSS1 = CSS2) achieves <100µs inter-rail skew. For precise voltage-ratio tracking (e.g., 1.2V/1.8V), external resistor dividers tied to shared reference are required.
What failure modes trigger latch-off versus hiccup mode, and how is PMODE configured?
Latch-off (PMODE = GND) activates on first occurrence of OCP, OVP, or OTP; hiccup (PMODE = VCC) retries every 250ms after fault clears. Configuration requires a 10kΩ pull-down or pull-up resistor to VCC/GND-floating PMODE is undefined and may cause erratic protection behavior.
Is the MPM3690GBF-30A-T compliant with IPC-J-STD-020 moisture sensitivity standards?
Yes-rated MSL Level 3 (168 hours at 30°C/60% RH). Bake time before reflow is 24 hours at 125°C if floor life is exceeded. Post-bake handling requires dry pack with desiccant and humidity indicator per J-STD-033 guidelines.
MPM3690GBF-30A-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MPM
- Package/Case:
- 144-BBGA Module
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 4V
- Voltage - Input (Max):
- 16V
- Voltage - Output 1:
- 0.6 ~ 3.3V
- Voltage - Output 2:
- 0.6 ~ 3.3V
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 18A, 18A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Adjustable Output, Remote Sense
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-BGA (16x16)
- Control Features:
- Enable, Active Floating
- Approval Agency:
- -
- Standard Number:
- -
MPM3690GBF-30A-T FAQ
1.How can I place an order for MPM3690GBF-30A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3690GBF-30A-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-30A-T reliable?
The price and inventory of MPM3690GBF-30A-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-30A-T is usually 5 days.
3.What payment methods are accepted for MPM3690GBF-30A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3690GBF-30A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3690GBF-30A-T?
MPM3690GBF-30A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3690GBF-30A-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-30A-T?
For technical support, including MPM3690GBF-30A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3690GBF-30A-T requirements.
6.How does Aetrix verify that MPM3690GBF-30A-T is sourced from the original manufacturer or authorized distributors?
All MPM3690GBF-30A-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-30A-T meets industry standards.
7.What is the process for return or replacement of MPM3690GBF-30A-T?
All MPM3690GBF-30A-T units undergo pre-shipment inspection (PSI). If there is an issue with MPM3690GBF-30A-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-30A-T part is unused and in its original packaging.
Return procedure for MPM3690GBF-30A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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