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Monolithic Power Systems Inc. MP4410GQ-P
- Part No.:
- MP4410GQ-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
MP4410GQ-P.pdf
- Description:
- IC REG BUCK ADJ 100MA 10QFN
- Quantity:
- Payment:
- Shipping:
Inventory:922
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Product details
Overview
MP4410GQ-P from Monolithic Power Systems is a 36V, 100mA synchronous step-down DC/DC converter with integrated high-side (2.25Ω) and low-side (0.7Ω) MOSFETs, 1.0V feedback reference, programmable peak current limit (55–260mA), and 5μA shutdown quiescent current. It operates from 4.5V to 36V input and delivers stable output for automotive and industrial power rails.
For engineers reviewing the MP4410GQ-P datasheet, MP4410GQ-P pinout, MP4410GQ-P application, or MP4410GQ-P equivalent, key selection criteria include its 42V MOSFET rating, ceramic-capacitor compatibility, adjustable UVLO hysteresis, soft-start timing control via external capacitor, and thermal shutdown at 160°C with 20°C hysteresis.
Technical Context
The MP4410GQ-P uses peak-current-mode PWM control with zero-current detection (ZCD) to regulate output voltage against load and line variations. Its internal 1.0V reference compares with FB voltage, while the ILIM pin sets current limit without external sense resistors.
It features a dedicated BIAS pin that powers the internal 2.6V regulator and low-side driver when supplied ≥2.9V (≥4.5V for full LS drive), improving efficiency in buck-derived topologies. Bootstrap charging is managed by an internal PMOS pass transistor with UVLO protection (2.4V rising threshold, 300mV hysteresis) on the BST-SW path.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 36V - supports wide automotive battery transients and industrial 24V systems. |
| Max Output Current | 100mA - determined by half the programmable peak switch current (e.g., 200mA peak → 100mA max continuous). |
| Feedback Reference | 1.0V ±1% - enables precise output setting (e.g., 3.3V with 1.2MΩ/523kΩ divider) and reduces resistor-divider current error. |
| Quiescent Current | 20μA typical - ensures minimal standby drain in always-on battery-powered sensors and loop-powered devices. |
| Shutdown Current | <5μA - critical for long-life coin-cell or supercapacitor backup applications. |
| Switching Frequency | Programmable via inductor and peak current - scales down under light load to maintain >90% efficiency at 2mA output. |
| Thermal Shutdown | 160°C with 20°C hysteresis - prevents latch-up during overload or poor PCB thermal design; resumes operation after cooldown. |
Pinout & Package
The MP4410GQ-P is housed in a thermally enhanced 3mm × 3mm QFN-10 package with exposed thermal pad, optimized for compact industrial and automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BST | Bootstrap supply | Provides gate drive voltage for high-side MOSFET; requires 0.1μF ceramic capacitor between BST and SW. |
| SW | Switch node | Drains high-side FET and sources low-side FET; connects directly to inductor and output diode/capacitor node. |
| GND | Power ground | Primary return path for high-current switching loops; must be connected to large copper pour adjacent to exposed pad. |
| BIAS | Bias supply input | Optional external supply ≥2.9V to power internal regulator and ≥4.5V to drive low-side FET; improves efficiency vs. VIN-only operation. |
| FB | Feedback input | Compares output voltage (via resistive divider) to internal 1.0V reference; accepts feedforward capacitor (e.g., 39pF) to suppress switching jitter. |
| ILIM | Peak current limit set | Resistor-to-GND sets switch current limit from 55mA to 260mA; floating = 55mA, shorted = 260mA. |
| SS | Soft-start control | Internal 3μA current charges external capacitor to ramp reference voltage; 3nF yields 1ms startup; larger values prevent output overshoot. |
| ENHY | Enable indicator output | Open-drain signal pulled low when EN falls below 1.2V; used with external resistor network to add custom UVLO hysteresis. |
| EN | Enable input | High-active logic (1.45–1.75V rising threshold); internally pulled down via 2MΩ resistor when floating; clamped to 7.5V zener. |
| IN | Main input supply | Accepts 4.5–36V; requires local 10μF ceramic decoupling capacitor placed near pin to suppress switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| Precision current limiting | No external sense resistor required - peak current set digitally via ILIM pin resistor (55–260mA range) with ±10% tolerance. |
| Ceramic-capacitor stability | Compensated for low-ESR ceramic output capacitors - eliminates need for electrolytic or tantalum, reducing board area and aging risk. |
| Adjustable UVLO hysteresis | Configurable via EN pin resistor divider - enables system-level brown-in/brown-out behavior matching host MCU or sensor thresholds. |
| Low-noise soft-start recovery | SS pin tracks FB during fault recovery - ensures controlled ramp-up after short-circuit removal, preventing output voltage overshoot. |
| Efficiency scaling | Switching frequency automatically reduces under light load - cuts gate driver and switching losses, sustaining >85% efficiency down to 1mA load. |
Applications
| 4–20mA Current Loop Transmitter | Automotive Body Control Module |
|---|---|
|
Use Scenario: Powering analog front-end and DAC in loop-powered field transmitters operating from 12–36V industrial supplies. IC Role / Device Role / Timing Role: Primary 3.3V/100mA point-of-load regulator supplying precision ADC, op-amps, and HART modem ICs. Use Value: 20μA quiescent current preserves loop compliance margin; 42V MOSFET rating withstands load-dump transients up to ISO 7637-2 Pulse 5a. |
Use Scenario: Supplying microcontroller, CAN transceiver, and sensor interface in door module or seat controller. IC Role / Device Role / Timing Role: Secondary 5V/100mA rail derived from 12V battery, enabling independent reset sequencing and low-power sleep modes. Use Value: 5μA shutdown current extends battery life during vehicle off-state; thermal shutdown protects against enclosure overheating in sealed modules. |
| Industrial IoT Sensor Node | Distributed Power System |
|
Use Scenario: Providing regulated 3.3V for ultra-low-power MCU, BLE radio, and MEMS accelerometer in battery-operated edge sensor. IC Role / Device Role / Timing Role: Always-on buck converter with programmable soft-start and EN-controlled wake-up, synchronized to sensor sampling intervals. Use Value: Programmable peak current (e.g., 75mA) matches burst transmit load; SS capacitor tunes startup time to avoid brownout during RF transmission. |
Use Scenario: Local regulation of 5V or 3.3V rails across multiple PCBs in modular PLC backplane or test equipment chassis. IC Role / Device Role / Timing Role: Distributed POL converter replacing centralized LDOs, minimizing heat buildup and improving transient response per subsystem. Use Value: Stable operation with ceramic caps simplifies layout across vibration-prone interconnects; BIAS pin allows efficient use of downstream 5V rail for higher efficiency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130ARGTR | Lower input range (3–17V), fixed 2.5MHz switching, no BIAS pin, 1.2V feedback reference. | Suitable for 5V-input systems only; lacks automotive-grade input voltage headroom and programmable current limit. | Select when board space is constrained and input is tightly regulated; not recommended for 24V/36V automotive or industrial inputs. |
| LMR14010ADRCR | Higher output current (1A), wider input (4–40V), external compensation, 0.8V reference, no ILIM pin. | Over-specified for 100mA loads; requires additional compensation components and larger inductor footprint. | Choose only if future scalability to >500mA is required; adds cost and complexity for this 100mA use case. |
Compared with TPS62130ARGTR and LMR14010ADRCR, the MP4410GQ-P uniquely balances automotive input robustness (4.5–36V), ultra-low quiescent current (20μA), and fine-grained current limit programming - making it optimal for space-constrained, battery-sensitive, and transient-hardened 100mA POL applications.
Availability
MP4410GQ-P is available at Aetrix Electronics and suitable for 4–20mA current loops, automotive body electronics, and industrial IoT sensor nodes requiring stable component supply across extended temperature and voltage ranges.
Supply support for MP4410GQ-P 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 over two decades of expertise in DC/DC conversion and motor control.
The MP4410 belongs to MPS's high-voltage synchronous buck converter product line, designed specifically for automotive, industrial, and instrumentation applications demanding wide input range, low IQ, and robust fault protection.
FAQ
What is the minimum inductor value supported by MP4410GQ-P?
The MP4410GQ-P specifies a 100ns minimum on-time, which sets the lower bound for inductor selection. For VIN(MAX) = 36V and IPEAK = 260mA, LMIN ≈ 13.8μH. Using smaller inductors risks sub-harmonic oscillation or loss of regulation at high duty cycles; 100μH is recommended for 100mA output per the datasheet design example.
Can the MP4410GQ-P operate without connecting the BIAS pin?
Yes - the MP4410GQ-P functions with BIAS unconnected, using VIN to power the internal 2.6V regulator. However, connecting BIAS to a clean 3.3V or 5V rail (≥2.9V) reduces input current and improves efficiency by ~3–5% at full load, especially when VIN exceeds 12V.
How does the ENHY pin improve system-level UVLO behavior?
ENHY is an open-drain output that pulls low when EN drops below 1.2V. When tied with resistors to EN and VIN, it creates asymmetric hysteresis: rising UVLO threshold increases via voltage divider, while falling threshold lowers via ENHY sink current, enabling precise brown-out recovery windows without external comparators.
Is the MP4410GQ-P RoHS-compliant and lead-free?
Yes - the MP4410GQ-P is fully RoHS-compliant and lead-free, meeting JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) and qualified per AEC-Q100 stress testing for automotive applications. Full green status documentation is available on the MPS website under Quality Assurance.
What causes switching frequency variation across load conditions?
The MP4410GQ-P dynamically scales switching frequency to optimize efficiency: it reduces fs under light load to minimize gate charge and switching losses, and increases fs near full load to maintain regulation. This behavior is inherent to its valley-current-mode architecture and does not require external control.
Does the MP4410GQ-P support forced PWM mode?
No - the MP4410GQ-P operates exclusively in valley-current-mode with automatic frequency scaling. It does not offer forced PWM or skip-cycle modes. For constant-frequency operation, designers must select alternative regulators such as the MPQ4420A or MPQ4470.
How is thermal performance affected by PCB layout?
Thermal resistance θJA is rated at 50°C/W on a 4-layer JEDEC JESD51-7 board. Omitting the exposed thermal pad connection or using insufficient copper area raises junction temperature by >30°C at 100mA, potentially triggering thermal shutdown. The datasheet mandates soldering the pad to ≥1cm² inner-layer copper pour.
MP4410GQ-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 36V
- Current - Output:
- 100mA
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-QFN (3x3)
MP4410GQ-P FAQ
1.How can I place an order for MP4410GQ-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP4410GQ-P 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 MP4410GQ-P reliable?
The price and inventory of MP4410GQ-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP4410GQ-P is usually 5 days.
3.What payment methods are accepted for MP4410GQ-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP4410GQ-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP4410GQ-P?
MP4410GQ-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP4410GQ-P 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 MP4410GQ-P?
For technical support, including MP4410GQ-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP4410GQ-P requirements.
6.How does Aetrix verify that MP4410GQ-P is sourced from the original manufacturer or authorized distributors?
All MP4410GQ-P 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 MP4410GQ-P meets industry standards.
7.What is the process for return or replacement of MP4410GQ-P?
All MP4410GQ-P units undergo pre-shipment inspection (PSI). If there is an issue with MP4410GQ-P, 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 MP4410GQ-P part is unused and in its original packaging.
Return procedure for MP4410GQ-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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