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Monolithic Power Systems Inc. MPM3690GBF-20A-T
- Part No.:
- MPM3690GBF-20A-T
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 144-BBGA Module
- Datasheet:
-
MPM3690GBF-20A-T.pdf
- Description:
- DC DC CONVERTER 3.3V 0.6 - 3.3V
- Quantity:
- Payment:
- Shipping:
Inventory:265
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Product details
Overview
MPM3690GBF-20A-T from Monolithic Power Systems is a dual-output 13A DC/DC power module integrating controller, MOSFETs, and inductors in a single BGA package. It operates from 4V–16V input, delivers 0.6V–3.3V per output, supports independent resistor-set voltage programming, and uses multi-phase constant-on-time (MCOT) control for ultra-fast transient response in FPGA and telecom power rails.
For engineers reviewing the MPM3690GBF-20A-T datasheet, MPM3690GBF-20A-T pinout, MPM3690GBF-20A-T application, or MPM3690GBF-20A-T equivalent, this module's dual-channel interleaved operation, differential remote sense capability, FCCM mode enforcement, and BGA thermal performance are critical selection criteria in high-density industrial and networking power designs.
Technical Context
The MPM3690GBF-20A-T implements master-slave MCOT control with dedicated SET, PASS, and TAKE signals to coordinate two 13A phases. Each channel features independent FB, SS, FSET, and EN pins, enabling asymmetric voltage, frequency, and soft-start configuration.
It integrates dual monolithic buck converters with internal high-side and low-side MOSFETs, on-die valley-current sensing, and programmable ramp compensation via RAMP1/RAMP2 pins-allowing stable operation across ceramic, POSCAP, and hybrid output capacitor types without external compensation networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 16V - supports wide-input industrial and telecom supplies; 3.2V min with external 3.3V VCC bias |
| Output Current | Dual 13A - each channel delivers up to 13A continuously with thermal derating above 70°C ambient |
| Output Voltage Range | 0.6V to 3.3V - set per channel via resistor divider from FBx to VSxN, referenced to 600mV internal VREF |
| Switching Frequency | 400kHz to 1MHz - adjustable per channel via FSET1/FSET2 resistors; 800kHz typical at 30kΩ |
| Feedback Accuracy | ±1% (594–606mV) - ensures tight regulation under load and line transients for ASIC/FPGA core rails |
| Thermal Shutdown | 160°C threshold with 30°C hysteresis - protects against sustained overload or poor PCB heatsinking |
| Efficiency Peak | 95% at 12VIN/1.2VOUT/13A - achieved using integrated low-RDS(on) MOSFETs and optimized gate drive |
Pinout & Package
MPM3690GBF-20A-T is housed in a thermally enhanced 16mm × 16mm × 5.18mm BGA package with 144 pads, optimized for high-current power delivery and bottom-side thermal transfer. Pin assignment follows a symmetrical layout supporting dual-channel routing and differential remote sensing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT1 (A1–C4, A5–C5) | Channel 1 power output | 12 parallel copper pads carrying up to 13A; requires direct connection to output plane or thick trace |
| VOUT2 (A8–C12, A9–C9) | Channel 2 power output | 12 parallel copper pads carrying up to 13A; electrically isolated but thermally coupled to VOUT1 |
| FB1 / FB2 | Output voltage feedback input | High-impedance node (50–100nA bias) tied to resistor divider; sets output via 60.4kΩ + RFB network |
| VS1P / VS2P, VS1N / VS2N | Differential remote sense inputs | Enable Kelvin sensing at load point; VSxN must connect to local GND or remote GND to activate sensing |
| EN1 / EN2 | Independent enable inputs | Logic-level control (VIH = 2.15V, VIL = 1.2V); must be actively driven-no floating allowed |
| PG1 / PG2 | Open-drain power-good indicators | Assert high when VOUTx is within ±7.5% of target; require external pull-up for system sequencing |
| FSET1 / FSET2 | Switching frequency programming | Resistor-to-GND sets fSW; 30kΩ yields ~800kHz; matched values required only for MPM3690-20B |
| MODE | Operation mode select | Pulled high to VCC to enforce forced continuous conduction mode (FCCM) for ripple-sensitive loads |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 13A outputs | Enables split-rail or redundant supply architectures without external current sharing circuitry |
| Differential remote sense per channel | Compensates for PCB IR drop up to 20mV, maintaining ±1% regulation at point-of-load |
| Adjustable soft-start (SS1/SS2) | Capacitor-programmable delay (tSS = 30 × CSS ms) prevents inrush into large capacitive loads |
| Multi-phase COT control | Generates SET pulses with 50ns minimum interval, delivering sub-1µs response to 10A/µs load steps |
| Integrated over-current protection | Valley-current limiting with 31-cycle fault accumulation avoids false triggering during startup or transients |
| Programmable ramp compensation | RAMP1/RAMP2 pins select internal slope to stabilize loop with low-ESR ceramic or polymer capacitors |
Applications
| Telecom Baseband Processing | FPGA Core Power Delivery |
|---|---|
Use Scenario: Powering multi-core baseband processors in 5G macro base stations requiring dual 1.2V/13A rails with <100µs transient recovery. IC Role / Device Role / Timing Role: Dual-channel synchronous buck module delivering tightly regulated, phase-interleaved power with differential remote sensing at processor VRM input. Use Value: Eliminates need for external current-sharing controllers and discrete inductors, reducing board area by >40% versus discrete solutions. | Use Scenario: Supplying configurable logic blocks and DSP slices in Xilinx Versal ACAPs where rail sequencing and fast load-step response are mandatory. IC Role / Device Role / Timing Role: Primary core voltage regulator with independent soft-start and feedback per rail, synchronized via shared MODE and PMODE control. Use Value: Achieves 95% peak efficiency at 1.0V/13A while maintaining <15mV undershoot during 6.5A/10A/µs transients. |
| Industrial PLC CPU Modules | AI Accelerator Board Power |
Use Scenario: Providing isolated 1.8V and 3.3V rails for ARM Cortex-A53-based controllers in harsh industrial environments with wide temperature swings. IC Role / Device Role / Timing Role: Dual-output power module with independent voltage setting, thermal shutdown, and hiccup/latch-off protection mode selection. Use Value: Maintains regulation across -40°C to +125°C junction range and survives 18V input surges per absolute max rating. | Use Scenario: Delivering 0.8V/26A equivalent (via interleaved dual 13A channels) to edge AI inference accelerators with burst-mode workloads. IC Role / Device Role / Timing Role: Interleaved dual-phase buck converter operating in FCCM to suppress low-frequency ripple affecting analog sensor interfaces. Use Value: Reduces output ripple by 40% vs. single-phase 26A modules, enabling cleaner power for mixed-signal SoCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output high-current DC/DC power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPM3690GBF-20B-T | Single 26A output; identical pinout and package; requires matched FSET resistors and master/slave interconnect | Used where higher per-rail current is needed instead of dual independent rails | Select when system requires one high-current rail rather than two lower-current rails |
| MPM3690GBF-30A-T | Dual 18A output; same BGA footprint; higher current rating and slightly reduced efficiency at light loads | Suitable for next-generation FPGA or ASICs demanding >13A per rail with future-proof headroom | Choose for designs needing margin beyond 13A/channel and willing to accept 0.5% lower peak efficiency |
Compared with MPM3690GBF-20B-T, the MPM3690GBF-20A-T provides true channel independence for split-rail systems; compared with MPM3690GBF-30A-T, it offers tighter thermal management at 13A loads and better light-load efficiency below 3A per channel.
Availability
MPM3690GBF-20A-T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, and FPGA-based embedded systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MPM3690GBF-20A-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 fully integrated, high-current DC/DC power modules targeting space-constrained, thermally demanding applications in networking, computing, and industrial automation.
FAQ
What is the maximum allowable input voltage for MPM3690GBF-20A-T?
The absolute maximum input voltage is 18V, but the recommended operating range is 4V to 16V. Exceeding 16V may trigger over-voltage protection or cause permanent damage. With external 3.3V VCC bias, the minimum functional VIN drops to 3.2V, enabling compatibility with partially discharged battery sources.
Can MPM3690GBF-20A-T operate with only one output enabled?
Yes. EN1 and EN2 are independently controlled. Driving EN1 high and EN2 low disables Channel 2 while maintaining full 13A capability on Channel 1. The disabled channel enters high-impedance state with no shoot-through risk, and its PG2 remains low until re-enabled.
How does the differential remote sense function work on this module?
VS1P/VS1N and VS2P/VS2N form separate differential pairs that measure voltage directly at the load. Connecting VSxP to the load's VOUT and VSxN to its local GND cancels PCB trace resistance error. If VSxN connects to module GND instead, remote sensing is disabled and regulation occurs at the module's output pads.
What thermal derating applies at 85°C ambient temperature?
At 85°C ambient with 1m/s airflow, the maximum continuous output current per channel drops to approximately 10.5A for 1.2V output (per Figure 12 thermal derating curve). Derating is steeper at lower output voltages due to higher current requirements for the same power.
Is external compensation required for stability?
No. The MPM3690GBF-20A-T uses internal type-II compensation with programmable ramp injection via RAMP1/RAMP2 pins. Stability is maintained across ceramic, POSCAP, and hybrid output capacitor configurations without external RC networks-only proper layout and input/output capacitance selection per datasheet guidelines are required.
Does the module support power sequencing between VOUT1 and VOUT2?
Yes. Independent EN1 and EN2 pins, combined with programmable soft-start times (via CSS1/CSS2 capacitors), allow precise staggered turn-on. For example, setting CSS1 = 100nF (3ms soft-start) and CSS2 = 220nF (6.6ms soft-start) achieves controlled 3.6ms delay between rail activations for FPGA I/O and core power sequencing.
What protection features are implemented in hardware?
Hardware-enforced protections include cycle-by-cycle valley-current limiting, output over-voltage (116–124% VREF), under-voltage (70–79% VREF), thermal shutdown (160°C), and configurable hiccup/latch-off response via PMODE pin. All protections operate independently per channel without firmware intervention.
MPM3690GBF-20A-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):
- 13A, 13A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Adjustable Output, Remote Sense
- Operating Temperature:
- -40°C ~ 125°C (With Derating)
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-BGA (16x16)
- Control Features:
- Enable, Active High
- Approval Agency:
- -
- Standard Number:
- -
MPM3690GBF-20A-T FAQ
1.How can I place an order for MPM3690GBF-20A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3690GBF-20A-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-20A-T reliable?
The price and inventory of MPM3690GBF-20A-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-20A-T is usually 5 days.
3.What payment methods are accepted for MPM3690GBF-20A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3690GBF-20A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3690GBF-20A-T?
MPM3690GBF-20A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3690GBF-20A-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-20A-T?
For technical support, including MPM3690GBF-20A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3690GBF-20A-T requirements.
6.How does Aetrix verify that MPM3690GBF-20A-T is sourced from the original manufacturer or authorized distributors?
All MPM3690GBF-20A-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-20A-T meets industry standards.
7.What is the process for return or replacement of MPM3690GBF-20A-T?
All MPM3690GBF-20A-T units undergo pre-shipment inspection (PSI). If there is an issue with MPM3690GBF-20A-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-20A-T part is unused and in its original packaging.
Return procedure for MPM3690GBF-20A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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