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Monolithic Power Systems Inc. MPQ4210GU-AEC1-P
- Part No.:
- MPQ4210GU-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 27-VFQFN Exposed Pad
- Datasheet:
-
MPQ4210GU-AEC1-P.pdf
- Description:
- IC REG BUCK BOOST ADJ 27QFN
- Quantity:
- Payment:
- Shipping:
Inventory:984
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Product details
Overview
MPQ4210GU-AEC1-P from Monolithic Power Systems is a synchronous four-switch buck-boost controller qualified to AEC-Q100 Grade 1 (−40°C to +125°C), supporting 6V–40V startup and 5V–40V operating input, 0.5V–28V programmable output via I²C, and up to 100W power delivery. It implements valley current control in buck mode and peak current control in boost mode for fast transient response, and integrates I²C-based VOUT slew-rate control, constant-current limit programming, and real-time IMON current monitoring-enabling USB PD 3.0 compliance in automotive-grade USB-C power supplies.
For engineers reviewing the MPQ4210GU-AEC1-P datasheet, MPQ4210GU-AEC1-P pinout, MPQ4210GU-AEC1-P application, or MPQ4210GU-AEC1-P equivalent, key selection criteria include its AEC-Q100 qualification, I²C-programmable output voltage and current limit, dual-mode current sensing architecture, integrated interrupt signaling for OCP/OVP/PNG, and QFN-27 wettable flank package for automotive thermal and reliability requirements.
Technical Context
The MPQ4210GU-AEC1-P operates as a four-switch buck-boost topology controller with independent high-side and low-side gate drivers for SWA/SWB (buck) and SWC/SWD (boost). Its valley-current control in buck mode and peak-current control in boost mode ensure smooth mode transitions and minimal output voltage deviation during load or line transients.
It features an integrated I²C interface supporting 7-bit slave address configuration (via ADDR pin), register-based VOUT setpoint (0.5V–28V, 1mV step), VOUT slew rate selection, average output current limit programming (via IAVGP/IAVGN), and fault reporting via open-drain INT pin with maskable PNG, OCP, OVP, and OTP events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 6V–40V startup; 5V–40V operation - supports wide automotive battery range including cold-crank (6V) and load-dump (40V). |
| Output Voltage Range | 0.5V–28V, I²C-programmable in 1mV steps - enables dynamic USB PD profile switching (5V/9V/15V/20V). |
| Switching Frequency | Selectable 200/300/400/600 kHz with ±6% spread spectrum - reduces EMI peaks without external filtering. |
| Current Sensing | Buck: valley-current limit (113–153 mV); Boost: peak-current limit (130–170 mV); Output avg. current limit (39–76 mV) - enables precise overcurrent protection across modes. |
| Protection Features | Programmable OCP, OVP (119–135% VREF), VIN UVLO hysteresis, thermal shutdown at 150°C with 25°C hysteresis - meets ASIL-B functional safety readiness. |
| Interface & Monitoring | I²C (400 kHz), IMON analog current monitor (16.92–20.68 V/V gain), open-drain INT pin with fault masking - enables host MCU-based real-time power management and diagnostics. |
| Package | QFN-27 (5mm × 5mm) with wettable flanks - supports automated optical inspection (AOI) and enhances solder joint reliability in automotive reflow. |
Pinout & Package
The MPQ4210GU-AEC1-P is housed in a thermally enhanced QFN-27 (5mm × 5mm) package with exposed thermal pad connected to PGND. Wettable flanks enable reliable solder joint inspection per IPC-A-610.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (ADDR) | I²C slave address select | Configures 7-bit I²C address (64H or 66H) via AVDD-relative threshold - eliminates external address resistors. |
| 4 (INT) | Fault interrupt output | Open-drain signal pulled low on unmasked OCP/OVP/PNG/OTP - enables MCU-triggered fault logging and graceful shutdown. |
| 5 (IMON) | Analog current monitor output | Scaled representation of output average current (gain = 16.92–20.68 V/V) - feeds into ADC for closed-loop current regulation or telemetry. |
| 13–14 (IAVGN/IAVGP) | Average output current sense inputs | Differential pair referenced to output rail - sets programmable constant-current limit via external resistor divider. |
| 15 (VOUT) | Output voltage sense & VCC source selector | Provides feedback path to FB and selects VCC supply source (VIN or VOUT) - ensures stable bias during buck/boost transitions. |
| 27 (EN) | Enable control input | Logic-level enable with 1.25–1.45V turn-on threshold and 0.4V turn-off - supports micro-power wake-up and VIN UVLO programming. |
Key Features
| Feature | Design Value |
|---|---|
| Four-switch buck-boost topology control | Enables seamless bidirectional power flow between input and output rails - eliminates need for separate buck and boost ICs in wide-input applications. |
| Valley-current (buck) / peak-current (boost) sensing | Ensures consistent current limiting and fast transient response across both operating modes - minimizes output voltage dip during mode crossing. |
| Integrated VOUT discharge function | Actively pulls down output capacitor when disabled - prevents unsafe residual voltage in USB-C ports after disconnect. |
| Programmable soft-start time | Set via external SS capacitor - controls inrush current and avoids input voltage sag during power-up in high-capacitance loads. |
| Forced continuous conduction mode (FCCM) | Maintains fixed switching frequency under light load - eliminates audible noise and improves output voltage regulation stability. |
Applications
| Automotive USB-C PD Charging | Industrial 24V Rail Regulation |
|---|---|
Use Scenario: In-vehicle infotainment (IVI) head units requiring programmable 5V/9V/15V/20V USB-C power delivery compliant with USB PD 3.0 specification. IC Role / Device Role / Timing Role: Primary buck-boost controller managing power conversion, I²C-based voltage/current profile negotiation, and fault reporting to vehicle MCU. Use Value: AEC-Q100 Grade 1 qualification ensures operation from −40°C to +125°C junction temperature; integrated IMON enables real-time current telemetry for thermal derating. | Use Scenario: Programmable 24V industrial PC power supply supporting variable load profiles and brownout resilience. IC Role / Device Role / Timing Role: Central controller regulating output from wide-range 12–40V DC input (e.g., PoE++ or battery backup), with I²C-adjustable VOUT and current limit. Use Value: FCCM mode eliminates light-load frequency modulation; programmable VIN UVLO hysteresis prevents cycling during unstable input conditions. |
| Super-Capacitor Backup Power | Automotive ADAS Camera Power |
Use Scenario: Bidirectional power management for supercapacitor-based backup systems in telematics control units (TCUs) during main power loss. IC Role / Device Role / Timing Role: Controller enabling charging (buck) from 12V battery and discharging (boost) to 5V/3.3V system rails - managed via I²C commands. Use Value: Four-switch architecture supports true bidirectional energy transfer; integrated VOUT discharge prevents capacitor hold-up voltage hazards. | Use Scenario: Compact, high-reliability power solution for 5MP+ automotive camera modules requiring stable 1.8V/3.3V rails from 5–16V battery input. IC Role / Device Role / Timing Role: Buck-boost regulator delivering low-noise, ripple-controlled output with fast load transient response (<100 µs recovery). Use Value: Valley/peak current control ensures <±2% load regulation across 0–3A; wettable flank QFN enables AOI-compatible assembly for zero-defect manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck-boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5175RHFTR | Non-AEC-Q100; no integrated I²C; uses external MOSFET drivers; requires external current-sense amplifier for avg. current limit. | Targeted at industrial/commercial DC/DC designs; lacks automotive qualification and digital programmability. | Choose LM5175RHFTR only if I²C control and AEC-Q100 are not required and board space allows discrete driver components. |
| TPS63802DLAR | Integrated MOSFETs (3A max); fixed 3.3V/5V outputs; no I²C; no IMON; limited to 17V input. | Designed for low-power portable electronics; unsuitable for >100W or automotive environments. | Use TPS63802DLAR only for cost-sensitive, low-current consumer applications where programmability and automotive grade are unnecessary. |
Compared with LM5175RHFTR and TPS63802DLAR, the MPQ4210GU-AEC1-P uniquely combines AEC-Q100 qualification, full I²C configurability (VOUT, slew rate, current limit), and integrated IMON telemetry - making it the only option for scalable, diagnostic-capable automotive USB PD and industrial backup power systems.
Availability
MPQ4210GU-AEC1-P is available at Aetrix Electronics and suitable for automotive USB-C PD chargers, industrial 24V power supplies, supercapacitor backup systems, and ADAS camera power modules requiring stable component supply and long-term lifecycle support.
Supply support for MPQ4210GU-AEC1-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 power management ICs, with design centers in the US, China, and Taiwan, and global distribution through authorized partners.
The MPQ4210 product line delivers AEC-Q100-qualified, digitally controllable buck-boost controllers targeting next-generation automotive infotainment, ADAS, and electrification systems requiring flexible, high-efficiency, and fault-resilient power conversion.
FAQ
What is the minimum startup voltage for MPQ4210GU-AEC1-P, and how does it behave below that threshold?
The MPQ4210GU-AEC1-P requires a minimum 6V input to initiate startup. Below this, internal bias circuitry remains inactive and the device stays in shutdown with <2μA quiescent current. Once started, it continues operating down to 5V input, supported by VCC sourced from either VIN or regulated VOUT.
How does the I²C interface support USB PD voltage profile switching?
The I²C interface allows real-time writing to VREF bits (0.5V–28V range in 1mV steps) and VOUT slew-rate control registers. This enables host MCU-driven transitions between USB PD profiles (e.g., 5V→9V→15V) with controlled ramp rates to meet USB PD specification timing and inrush limits.
Can MPQ4210GU-AEC1-P operate in forced continuous conduction mode (FCCM) across all load conditions?
Yes - FCCM mode is programmable and remains active from zero load to full rated current. It maintains fixed switching frequency and eliminates discontinuous conduction mode (DCM) artifacts such as variable frequency noise and poor light-load regulation.
What is the function of the IAVGP and IAVGN pins, and how are they connected?
IAVGP and IAVGN form a differential input for average output current sensing. They connect directly across a sense resistor placed in series with the output rail's positive path. The voltage difference is converted internally to set the programmable constant-current limit, independent of operating mode.
Does MPQ4210GU-AEC1-P provide reverse polarity or short-circuit protection on its own?
No - the MPQ4210GU-AEC1-P provides over-current protection (OCP) and short-circuit protection (SCP) detection via current-sense comparators, but relies on external MOSFETs and layout for physical fault isolation. SCP triggers hiccup-mode shutdown; recovery requires removal of fault and auto-restart or EN toggle.
How is thermal performance validated, and what is the maximum junction temperature?
Thermal performance is characterized on the EVQ4210-U-00B evaluation board (6-layer, 2oz copper). Maximum junction temperature is 150°C, with thermal shutdown activating at that point and 25°C hysteresis. θJA is 25°C/W on the reference board, enabling accurate derating calculations for custom layouts.
Is the QFN-27 package compatible with standard automotive SMT reflow profiles?
Yes - the QFN-27 (5mm × 5mm) package with wettable flanks is qualified for lead-free reflow per J-STD-020. Its exposed thermal pad must be soldered to a solid PGND plane; recommended stencil aperture is 80–90% for optimal void control and thermal reliability in automotive applications.
MPQ4210GU-AEC1-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 27-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 5V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 28V
- Current - Output:
- -
- Frequency - Switching:
- 200kHz ~ 600kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 27-QFN (5x5)
MPQ4210GU-AEC1-P FAQ
1.How can I place an order for MPQ4210GU-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4210GU-AEC1-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 MPQ4210GU-AEC1-P reliable?
The price and inventory of MPQ4210GU-AEC1-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ4210GU-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPQ4210GU-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4210GU-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4210GU-AEC1-P?
MPQ4210GU-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4210GU-AEC1-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 MPQ4210GU-AEC1-P?
For technical support, including MPQ4210GU-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4210GU-AEC1-P requirements.
6.How does Aetrix verify that MPQ4210GU-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPQ4210GU-AEC1-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 MPQ4210GU-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPQ4210GU-AEC1-P?
All MPQ4210GU-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4210GU-AEC1-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 MPQ4210GU-AEC1-P part is unused and in its original packaging.
Return procedure for MPQ4210GU-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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