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Monolithic Power Systems Inc. MPM3810GQB-Z
- Part No.:
- MPM3810GQB-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 12-PowerVFQFN Module
- Datasheet:
-
MPM3810GQB-Z.pdf
- Description:
- DC DC CONVERTER 0.6-6V
- Quantity:
- Payment:
- Shipping:
Inventory:1,721
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Product details
Overview
MPM3810GQB-Z from Monolithic Power Systems is a synchronous step-down DC-DC power module with integrated inductor and MOSFETs, delivering up to 1.2A peak output current from a 2.5V–6V input. It regulates output down to 0.6V using constant-on-time (COT) control, features EN and open-drain Power Good (PG), and targets space-constrained portable and embedded power rails.
For engineers reviewing the MPM3810GQB-Z datasheet, MPM3810GQB-Z pinout, MPM3810GQB-Z application, or MPM3810GQB-Z equivalent, key selection criteria include its QFN-12 (2.5×3.0×0.9 mm) package, ultra-low 17μA quiescent current, 100% duty-cycle capability in dropout, cycle-by-cycle over-current protection, and thermal shutdown at 150°C.
Technical Context
The MPM3810GQB-Z implements constant-on-time (COT) control with input voltage feed-forward to maintain stable switching frequency (2.8–4.2 MHz) across input and output variations. Its internal 0.47 μH inductor and matched 100 mΩ PFET / 60 mΩ NFET switches enable high-efficiency operation without external magnetics.
It integrates analog ground (AGND) separation, output voltage sensing (OUT_S), and a dedicated feedback (FB) pin for adjustable regulation. Protection includes hiccup-mode short-circuit response, thermal shutdown with 30°C hysteresis, and under-voltage lockout (UVLO) with 2.3V turn-on threshold and 300mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 6V - supports single-cell Li-ion, USB-powered, and multi-rail intermediate bus systems. |
| Output Voltage Range | Adjustable from 0.6V - enables direct core supply for low-voltage FPGAs, DSPs, and I/O rails. |
| Peak Output Current | 1.2A - sufficient for powering high-performance digital logic with transient headroom. |
| Quiescent Current | 17μA - minimizes standby power loss in battery-operated portable instruments and storage devices. |
| Switching Frequency | 2.8–4.2 MHz - allows use of small ceramic capacitors and reduces solution footprint to 6mm × 3.8mm. |
| Thermal Shutdown | 150°C with 30°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
| Power Good Accuracy | ±10% window around FB reference - provides reliable system power sequencing and fault detection. |
Pinout & Package
MPM3810GQB-Z is housed in a thermally enhanced QFN-12 package (2.5 mm × 3.0 mm × 0.9 mm) with exposed thermal pad (pins 3–4 connected internally to SW node for heatsinking).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 PGND | Power Ground | Primary return path for high-current switching loop; must be connected to large copper pour for thermal and EMI performance. |
| 3, 4 NC | Internal SW Pad | Exposed thermal pad tied to internal switch node; requires solder connection to PCB thermal plane for heat dissipation. |
| 5, 6 OUT | Power Output Rail | Delivers regulated DC output; connects directly to load and output capacitor; high-current path requiring short, wide trace. |
| 7 VIN | Input Supply | Accepts 2.5–6V unregulated input; requires local 10μF ceramic decoupling placed adjacent to pin for ripple suppression. |
| 8 PG | Open-Drain Power Good | Indicates regulation status (±10%); internal 550kΩ pull-up to VIN; sinks current when FB is out-of-regulation. |
| 9 EN | Enable Control | Active-high logic input (1.2V threshold); internal 1MΩ pulldown enables default disable on floating input. |
| 10 FB | Feedback Input | Sets output voltage via external resistor divider; 600mV reference; 10nA bias current enables high-value resistors for low quiescent loss. |
| 11 AGND | Analog Ground | Reference for internal control circuitry; must be isolated from noisy PGND and connected near FB/OUT_S for stability. |
| 12 OUT_S | Output Voltage Sense | Remote sensing input for improved load regulation; connects to load-side of output trace to compensate IR drop. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Inductor + MOSFETs | 0.47 μH inductor with 120 mΩ DCR and matched 100/60 mΩ P/N-FETs eliminate external magnetics and reduce BOM count to 4 components for adjustable designs. |
| Constant-On-Time (COT) Control | Enables <100 ns transient response and eliminates loop compensation components; input feed-forward maintains stable 2.8–4.2 MHz switching across VIN/VOUT range. |
| Ultra-Low Quiescent Current | 17μA IQ at light load extends battery life in always-on portable instrumentation and SSD standby modes. |
| 100% Duty-Cycle Operation | Supports dropout mode down to VOUT ≈ VIN − 220 mΩ × ILOAD, enabling regulation even when input sags near output voltage. |
| Hiccup-Mode Short-Circuit Protection | Disables output, discharges soft-start cap, and retries startup every ~10 ms - prevents thermal runaway during sustained shorts. |
Applications
| Low-Voltage FPGA Core Supply | LDO Replacement in Portable Instruments |
|---|---|
|
Use Scenario: Powering 0.8–1.2V core rails of Xilinx Artix-7 or Intel MAX 10 FPGAs in handheld test equipment. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing tightly regulated, low-noise DC power with fast load-step response. Use Value: Replaces inefficient LDOs with >85% efficiency at 1A, reducing thermal load and extending battery runtime by >3×. |
Use Scenario: Replacing linear regulators in portable oscilloscope front-end analog signal chains. IC Role / Device Role / Timing Role: High-PSRR, low-ripple DC-DC source for precision ADC reference and op-amp bias rails. Use Value: Delivers 1.2V @ 1A with <10 mVpp ripple and 17μA IQ, enabling 12-hour battery operation without thermal throttling. |
| SSD/HDD Intermediate Bus Converter | Space-Constrained IoT Sensor Node Power |
|
Use Scenario: Generating 3.3V or 2.5V from 5V USB input for NAND flash and SATA controller ICs in M.2 SSD modules. IC Role / Device Role / Timing Role: Compact, high-efficiency point-of-load converter with PG signaling for host power sequencing. Use Value: Achieves full 1.2A output in 6mm × 3.8mm total footprint - fits within tight M.2 edge connector spacing constraints. |
Use Scenario: Supplying 1.8V to BLE SoCs and MEMS sensors in coin-cell–powered environmental monitors. IC Role / Device Role / Timing Role: Always-on, ultra-low-IQ buck converter supporting deep-sleep wake-up events with minimal voltage droop. Use Value: Maintains regulation during 100mA burst loads while drawing only 17μA in idle - doubles usable battery capacity vs. discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPM3610GQB-Z | Lower 0.8A peak current, 1.5MHz fixed frequency, no OUT_S pin, same QFN-12 package. | Suitable for lower-power microcontrollers but lacks remote sensing for precision analog rails. | Select when cost sensitivity outweighs need for 1.2A headroom or remote voltage sensing. |
| TI TPS826718SIPR | 1.8V fixed output only, 1A max, 4.5MHz switching, integrated compensation, no EN/PG pins. | Targeted at ASIC core supplies where fixed 1.8V and minimal external parts are prioritized over flexibility. | Choose for plug-and-play 1.8V FPGA core supply where programmability and sequencing signals are unnecessary. |
Compared with MPM3810GQB-Z, MPM3610GQB-Z trades peak current and sensing capability for lower cost and simpler layout, while TPS826718SIPR sacrifices adjustability and control features for smallest possible footprint and fastest frequency - making MPM3810GQB-Z optimal for flexible, high-accuracy, medium-current portable power.
Availability
MPM3810GQB-Z is available at Aetrix Electronics and suitable for portable instrumentation, SSD/HDD power management, and space-constrained IoT sensor nodes requiring stable component supply and long-term production continuity.
Supply support for MPM3810GQB-Z 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 global manufacturing and quality certifications including ISO 9001 and IATF 16949.
The MPM38xx series is designed specifically for compact, high-efficiency DC-DC conversion in portable and embedded systems - integrating inductors and controllers to minimize footprint, simplify layout, and accelerate time-to-market.
FAQ
What is the minimum output voltage supported by MPM3810GQB-Z?
The MPM3810GQB-Z supports an adjustable output voltage down to 0.6V, set by an external resistor divider on the FB pin. This 0.6V reference enables direct powering of modern low-voltage logic cores such as ARM Cortex-M7 or RISC-V SoCs operating at sub-1V levels, with guaranteed regulation accuracy of ±2% over temperature and line/load conditions.
Does MPM3810GQB-Z require external compensation components?
No - the MPM3810GQB-Z uses constant-on-time (COT) control architecture with built-in input voltage feed-forward, eliminating the need for external compensation networks. Stability is inherently achieved across the full 2.5–6V input and 0.6–VIN output range, simplifying design and reducing bill-of-materials to just input/output capacitors and FB resistors for adjustable versions.
How does the OUT_S pin improve regulation accuracy?
The OUT_S pin enables remote voltage sensing by connecting directly to the load side of the output trace, allowing the IC to compensate for IR drop across PCB traces and connectors. This improves load regulation to ±1% over 0–1.2A load range - critical for precision analog circuits and high-speed digital interfaces where localized voltage sag causes timing violations or noise coupling.
What thermal management guidance applies to the NC (SW) pads?
Pins 3 and 4 are internally connected to the high-side switch node and serve as thermal pads. They must be soldered to a dedicated thermal copper plane on the PCB, sized per JEDEC JESD51-7 4-layer standard (θJA = 65°C/W). Failure to connect these pads results in junction temperature rise exceeding 150°C at 1A load, triggering thermal shutdown and derating output current by >30%.
Can MPM3810GQB-Z operate with only ceramic capacitors?
Yes - the MPM3810GQB-Z is optimized for all-ceramic designs: a 10μF X5R/X7R input capacitor placed adjacent to VIN/PGND and a 20μF ceramic output capacitor yield <15mVpp ripple at 1.2A. Ceramic-only implementation eliminates ESR-related instability risks and supports the COT control loop without damping resistors or tantalum electrolytics.
What happens during startup when EN is asserted?
Upon EN assertion above 1.2V, the MPM3810GQB-Z initiates a 1.5ms internal soft-start ramp that linearly increases the output voltage to prevent overshoot and inrush current. During this period, the PG pin remains low; it transitions high only after FB reaches and sustains ±10% of the target regulation voltage, ensuring reliable power sequencing in multi-rail systems.
Is the MPM3810GQB-Z RoHS-compliant and lead-free?
Yes - the MPM3810GQB-Z is fully RoHS-compliant and lead-free, meeting EU Directive 2011/65/EU and China RoHS II requirements. All package finishes use matte tin plating over copper, and the device carries MPS's official green status certification, verified through third-party material declarations and manufacturing audits.
MPM3810GQB-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 12-PowerVFQFN Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output 1:
- 0.6 ~ 6V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 1.2A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- OCP, OTP, UVLO
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-QFN (3x2.5)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3810GQB-Z FAQ
1.How can I place an order for MPM3810GQB-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3810GQB-Z 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 MPM3810GQB-Z reliable?
The price and inventory of MPM3810GQB-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPM3810GQB-Z is usually 5 days.
3.What payment methods are accepted for MPM3810GQB-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3810GQB-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3810GQB-Z?
MPM3810GQB-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3810GQB-Z 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 MPM3810GQB-Z?
For technical support, including MPM3810GQB-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3810GQB-Z requirements.
6.How does Aetrix verify that MPM3810GQB-Z is sourced from the original manufacturer or authorized distributors?
All MPM3810GQB-Z 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 MPM3810GQB-Z meets industry standards.
7.What is the process for return or replacement of MPM3810GQB-Z?
All MPM3810GQB-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3810GQB-Z, 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 MPM3810GQB-Z part is unused and in its original packaging.
Return procedure for MPM3810GQB-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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