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Monolithic Power Systems Inc. MPM3820GQV-Z
- Part No.:
- MPM3820GQV-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 20-PowerLFQFN Module
- Datasheet:
-
MPM3820GQV-Z.pdf
- Description:
- DC DC CONVERTER 0.6-6V
- Quantity:
- Payment:
- Shipping:
Inventory:4,680
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Product details
Overview
MPM3820GQV-Z from Monolithic Power Systems is a monolithic synchronous step-down DC-DC power module with integrated inductor and MOSFETs, delivering 2A continuous output from 2.7V–6V input. It features constant-on-time (COT) control, 0.6V adjustable output, 40µA quiescent current, and operates in 100% duty cycle dropout mode-ideal for single-cell Li+ battery-powered portable devices.
For engineers reviewing the MPM3820GQV-Z datasheet, MPM3820GQV-Z pinout, MPM3820GQV-Z application, or MPM3820GQV-Z equivalent, key selection criteria include input voltage range compatibility, ultra-low IQ for battery runtime, QFN-20 (3mm×5mm) footprint constraints, EMI performance per EN55022 Class B, and minimal external component count (only input/output capacitors and FB resistors required).
Technical Context
The MPM3820GQV-Z implements a Constant-On-Time (COT) control architecture enabling fast transient response without external compensation. Its internal power stage integrates high- and low-side MOSFETs with a shielded planar inductor, supporting seamless operation down to 0.6V output with ±1.5% initial accuracy over temperature.
Fault protection includes cycle-by-cycle current limiting, thermal shutdown, and hiccup-mode short-circuit response. The device supports power sequencing via dedicated EN and PG pins, and achieves up to 95% peak efficiency at 2A load with 1.2MHz nominal switching frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 6V - supports single-cell Li+ (3.0–4.2V), LiFePO₄ (2.5–3.65V), and USB-powered systems |
| Output Current | 2A continuous - sufficient for microcontrollers, sensors, and RF transceivers in compact wearables |
| Output Voltage Range | 0.6V to VIN - enables core rail regulation for low-voltage SoCs and FPGAs |
| Quiescent Current | 40µA - extends battery life in always-on sensor nodes and IoT endpoints |
| Switching Frequency | 1.2MHz (typ.) - allows use of small 1µF–10µF ceramic output capacitors and reduces solution size |
| Package Dimensions | 3.0mm × 5.0mm × 1.6mm QFN-20 - fits space-constrained PCB layouts with exposed thermal pad for efficient heat dissipation |
| EMI Performance | Meets EN55022 Class B radiated emissions - eliminates need for external EMI filters in consumer-grade designs |
Pinout & Package
The MPM3820GQV-Z is housed in a thermally enhanced QFN-20 package (3mm × 5mm, 0.5mm pitch) with an exposed thermal pad (EP) on the bottom for PCB-level heat sinking. Pin 1 is marked by a dot; pins are numbered counter-clockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input power supply connection | Accepts 2.7–6V; requires local 10µF ceramic capacitor placed within 2mm of pin |
| OUT | Regulated output node | Delivers up to 2A; connects directly to load and output capacitor bank |
| FB | Feedback voltage sensing input | Resistor divider sets output voltage; 0.6V reference enables precise low-VOUT regulation |
| EN | Enable control input | Active-high logic input; supports power sequencing and standby mode control |
| PG | Power Good open-drain output | Signals valid regulation (±10% window); used for system reset or downstream enable chaining |
| EP | Exposed thermal pad | Must be soldered to large copper pour for thermal management; not electrically connected |
| NC | No-connect terminal | Internally unconnected; must remain floating per datasheet layout guidance |
Key Features
| Feature | Design Value |
|---|---|
| Integrated inductor + MOSFETs | Eliminates discrete magnetics and gate drivers; reduces design risk and board area by >40% vs. controller-based solutions |
| Constant-On-Time (COT) control | Enables <10µs load transient recovery without loop compensation components or tuning |
| Ultra-low 40µA quiescent current | Extends shelf life and operational runtime in battery-backed real-time clocks and BLE sleep modes |
| Hiccup-mode short-circuit protection | Prevents thermal runaway during sustained overload; auto-recovers after fault clears |
| EN and PG pins | Supports controlled power-up/down sequencing in multi-rail systems (e.g., FPGA + memory + I/O rails) |
Applications
| Barcode Scanners | Wearable Health Monitors |
|---|---|
Use Scenario: Handheld or fixed-mount scanners requiring rapid decode cycles, wireless transmission, and long battery life between charges. IC Role / Device Role / Timing Role: Primary 3.3V or 1.8V power rail regulator for image sensor, MCU, and Bluetooth LE radio. Use Value: Low IQ and high light-load efficiency maintain >85% efficiency at 1mA load, extending scan session duration. | Use Scenario: Compact wrist-worn devices measuring heart rate, SpO₂, and motion with multi-day battery life. IC Role / Device Role / Timing Role: Single-chip power source for ultra-low-power ARM Cortex-M0+ MCU and analog front-end sensors. Use Value: 0.6V minimum output supports DVFS-capable processors; 1.2MHz switching avoids audible noise in sensitive audio bands. |
| Industrial Handheld Terminals | Smart Sensor Nodes |
Use Scenario: Ruggedized field terminals running Linux RTOS, featuring LCD, RFID, and cellular connectivity. IC Role / Device Role / Timing Role: Main 3.3V system rail with tight line/load regulation (<±1%) across wide temperature and input voltage swings. Use Value: COT control ensures stable operation during sudden 500mA load steps from display backlight activation. | Use Scenario: Battery-operated environmental sensors deployed in remote locations for years without maintenance. IC Role / Device Role / Timing Role: Always-on 1.2V supply for ultra-low-power microcontroller and precision ADC. Use Value: 40µA IQ enables >5-year battery life with CR2032; EN pin enables deep-sleep wake-on-interrupt capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPM3824 | Same 2A rating, but optimized for ultra-low noise (30dB lower EMI) and wider 2.75–6V input range | Better suited for noise-sensitive analog/RF subsystems where spectral purity matters more than cost | Select MPM3824 when meeting CISPR-22 Class B without shielding is mandatory |
| MPM3810A | 1.2A output, identical package and pinout, same COT control and 0.6V min VOUT | Lower current capacity limits use to sub-1A loads (e.g., BLE-only peripherals) | Choose MPM3810A only if 1.2A suffices and board reuse of footprint is critical |
Compared with MPM3824, the MPM3820GQV-Z trades EMI performance for cost and broad compatibility; versus MPM3810A, it doubles output current while retaining identical layout and control interface-making it the optimal upgrade path for existing 1.2A designs scaling to 2A.
Availability
MPM3820GQV-Z is available at Aetrix Electronics and suitable for barcode scanners, wearable health monitors, industrial handheld terminals, and smart sensor nodes requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for MPM3820GQV-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 power management ICs and modules, headquartered in Kirkland, WA, with global design and support centers.
The MPM38xx family targets space-constrained, battery-powered applications demanding high integration, low IQ, and minimal external components-designed specifically for portable, wearable, and IoT edge devices.
FAQ
What is the recommended PCB layout for thermal management of the MPM3820GQV-Z?
The exposed thermal pad (EP) must be soldered to a minimum 100mm² copper pour with ≥6 thermal vias (0.3mm diameter, spaced ≤1mm apart) connecting to inner ground planes. Avoid routing signal traces under the IC; place input/output capacitors within 2mm of IN/OUT pins using short, wide traces to minimize loop inductance and EMI.
Does the MPM3820GQV-Z support forced PWM or PFM mode selection?
No-the MPM3820GQV-Z uses fixed Constant-On-Time (COT) control with automatic pulse-frequency modulation (PFM) at light loads. There is no user-accessible mode pin or register to force continuous PWM; efficiency optimization across load range is fully autonomous.
Can the FB pin be used for remote sensing in high-current applications?
No-remote sensing is not supported. The FB pin senses voltage directly at the OUT pin. For high-current designs with significant IR drop, place the feedback resistor divider at the load point and route FB trace separately with Kelvin connections, though this deviates from standard layout guidance and may affect stability.
What is the maximum allowable input voltage surge for the MPM3820GQV-Z?
The absolute maximum rated input voltage is 7V for ≤100ms per MPS datasheet. Sustained operation above 6V risks permanent damage. For systems exposed to load dump or hot-swap transients, add a TVS diode (e.g., SMAJ5.0A) between IN and GND with clamping voltage <6.5V.
Is the MPM3820GQV-Z RoHS and REACH compliant?
Yes-MPM3820GQV-Z is lead-free, halogen-free, and fully compliant with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Certificate of Compliance and material declarations are available via MPS Quality Portal upon registration.
How does the hiccup-mode protection behave during a sustained short circuit?
Upon short-circuit detection, the device shuts down for ~500ms, then attempts soft-start reactivation. If the fault persists, it repeats the cycle indefinitely-limiting average power dissipation to <300mW and preventing thermal damage to the IC or PCB.
What is the tolerance of the internal 0.6V feedback reference voltage?
The internal reference has ±1.5% initial accuracy over temperature (–40°C to +125°C) and line/load regulation combined. This enables ±2% total output voltage accuracy with 1% FB resistors, meeting typical SoC core rail requirements without trimming.
MPM3820GQV-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 20-PowerLFQFN Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output 1:
- 0.6 ~ 6V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 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:
- 20-QFN (3x5)
- Control Features:
- Enable, Active High
- Approval Agency:
- -
- Standard Number:
- -
MPM3820GQV-Z FAQ
1.How can I place an order for MPM3820GQV-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3820GQV-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 MPM3820GQV-Z reliable?
The price and inventory of MPM3820GQV-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPM3820GQV-Z is usually 5 days.
3.What payment methods are accepted for MPM3820GQV-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3820GQV-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3820GQV-Z?
MPM3820GQV-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3820GQV-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 MPM3820GQV-Z?
For technical support, including MPM3820GQV-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3820GQV-Z requirements.
6.How does Aetrix verify that MPM3820GQV-Z is sourced from the original manufacturer or authorized distributors?
All MPM3820GQV-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 MPM3820GQV-Z meets industry standards.
7.What is the process for return or replacement of MPM3820GQV-Z?
All MPM3820GQV-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3820GQV-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 MPM3820GQV-Z part is unused and in its original packaging.
Return procedure for MPM3820GQV-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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