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Monolithic Power Systems Inc. MPQ4214GU-AEC1-Z
- Part No.:
- MPQ4214GU-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 27-VFQFN Exposed Pad
- Datasheet:
-
MPQ4214GU-AEC1-Z.pdf
- Description:
- IC REG BUCK-BOOST
- Quantity:
- Payment:
- Shipping:
Inventory:2,337
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Product details
Overview
MPQ4214GU-AEC1-Z from Monolithic Power Systems is a synchronous four-switch buck-boost controller qualified to AEC-Q100 Grade 1, supporting 6V–40V startup and 5V–40V operation input ranges, I²C-programmable 0.5V–36V output voltage, and adjustable average current limit via IPWM pin. It delivers fast transient response in USB PD Type-C power supplies using valley-current control (buck) and peak-current control (boost).
For engineers reviewing the MPQ4214GU-AEC1-Z datasheet, MPQ4214GU-AEC1-Z pinout, MPQ4214GU-AEC1-Z application, or MPQ4214GU-AEC1-Z equivalent, key selection factors include its AEC-Q100 qualification, I²C-based VOUT/VREF/slew-rate/current-limit programming, QFN-27 (5mm×5mm) package with wettable flanks, and dual-mode current sensing for buck-boost seamless transition.
Technical Context
The MPQ4214GU-AEC1-Z implements valley-current mode control in buck operation and peak-current mode in boost operation, enabling smooth mode transitions and fast load-step response. Its integrated error amplifier (GEA = 1220 μA/V) and COMP pin support external type-II/III compensation for stable regulation across wide VIN/VOUT ranges.
I²C interface provides real-time configuration of VOUT (0.5V–36V), reference voltage (0.5V–2.047V in 1mV steps), slew rate, and constant-current limit (0.6A step); IPWM pin enables analog fine-tuning of current limit (±50mA resolution) independent of I²C register settings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 6V–40V startup; 5V–40V operational - supports automotive cold-crank and wide-input industrial rails. |
| Output Voltage Range | 0.5V–36V programmable via I²C - enables USB PD 5V/9V/15V/20V profiles and LED driver flexibility. |
| Switching Frequency | Selectable 200/300/400/600 kHz with ±6% dither - balances efficiency, size, and EMI compliance. |
| Current Limit Control | Dual-path: I²C-set max + IPWM-dimmed final limit (0.6A step × duty cycle) - enables dynamic CC adjustment without firmware update. |
| Protection Features | Hiccup OCP, auto-retry OVP (119–135% VREF), thermal shutdown at 150°C - ensures robust fault recovery in automotive environments. |
| AEC-Q100 Grade | Grade 1 (−40°C to +125°C TJ) - validated for under-hood and ADAS power systems. |
| Package | QFN-27 (5mm × 5mm) with exposed pad and wettable flanks - supports automated optical inspection and high-power thermal dissipation (θJA = 25°C/W on 4-layer PCB). |
Pinout & Package
MPQ4214GU-AEC1-Z is housed in a QFN-27 (5mm × 5mm) package with wettable flanks and an exposed thermal pad connected to PGND. Pin numbering follows standard top-view orientation with Pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADDR | I²C slave address select | Four-level analog threshold sets I²C address (60H/62H/63H/66H) - eliminates external resistors for multi-device bus addressing. |
| SCL/SDA | I²C clock/data bidirectional | Supports standard/fast-mode I²C (up to 400 kHz) for real-time VOUT/VREF/current limit reconfiguration during operation. |
| IPWM | Analog current limit modulation | PWM input scales I²C-set current limit linearly (0–100% duty → 0–100% final limit) - enables closed-loop CC control without MCU intervention. |
| CSP/CSN | High-side current sense inputs | Differential sensing of buck switch current (valley mode) - enables accurate overcurrent detection with minimal noise coupling. |
| IAVGP/IAVGN | Average output current sense | Direct connection to output rail for constant-current regulation - used in LED drivers and USB PD CC mode with <1% gain error. |
| INT | Open-drain fault interrupt | Asserts low on OCP/OVP/OTP/PNG events - allows host MCU to prioritize fault handling without polling registers. |
| HG1/LG1/HG2/LG2 | Four gate drivers | Independent high-/low-side drivers for SWA/SWB/SWC/SWD MOSFETs - supports full four-switch topology with 30ns dead-time control. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible reference voltage | MPQ4214GU-AEC1-Z supports programmable VREF (0.5V–2.047V in 1mV steps) - enables precise output regulation for diverse loads including Li-ion battery charging and RGB LED strings. |
| VOUT slew-rate control | I²C-configurable soft-start and output ramp rate - prevents inrush current during hot-plug events in USB Type-C applications. |
| Integrated VOUT discharge | Internal FET discharges output capacitor when EN = low - eliminates need for external bleed resistor and ensures safe power-down sequencing. |
| Interrupt indicator | Dedicated open-drain INT pin reports CC, OCP, OVP, and OTP faults - reduces software overhead by offloading status monitoring from host processor. |
| Frequency dithering | ±6% spread-spectrum modulation at 2 kHz - lowers peak EMI amplitude to meet CISPR 25 Class 5 requirements in automotive designs. |
Applications
| USB Power Delivery | Automotive ADAS Camera Power |
|---|---|
Use Scenario: Dual-role USB Type-C port delivering 5V/9V/15V/20V power to laptops, monitors, and peripherals. IC Role / Device Role / Timing Role: Four-switch buck-boost controller managing bidirectional power flow and seamless voltage transitions during PDO negotiation. Use Value: I²C programmability enables firmware-controlled voltage profile switching without hardware change; AEC-Q100 Grade 1 ensures reliability in vehicle-mounted docking stations. | Use Scenario: Power supply for 8MP+ automotive camera modules requiring stable 12V or 15V from 6V–18V battery input. IC Role / Device Role / Timing Role: Primary DC-DC controller regulating output under cold-crank (6V) and load-dump (40V) conditions while maintaining tight load/line regulation. Use Value: Valley/peak current mode control delivers <100μs load transient recovery; thermal shutdown at 150°C protects against under-hood overheating. |
| High-Power LED Drivers | Industrial PC Power Rails |
Use Scenario: Constant-current driver for automotive exterior lighting (DRL, fog lamps) with dimming via IPWM. IC Role / Device Role / Timing Role: Buck-boost controller operating in CC mode using IAVGP/IAVGN feedback, with IPWM enabling analog PWM dimming. Use Value: 0.6A current limit step + IPWM fine-tuning achieves <1% current accuracy; integrated discharge FET ensures safe LED turn-off. | Use Scenario: Main 12V/19V rail generator for ruggedized IPCs powered from 9V–36V industrial DC sources. IC Role / Device Role / Timing Role: High-efficiency buck-boost regulator supporting wide-input industrial power supplies with FCCM for light-load stability. Use Value: 400kHz switching frequency minimizes inductor size; QFN-27 package with wettable flanks enables reliable reflow soldering in high-volume 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 |
|---|---|---|---|
| MPQ4214GU-12-AEC1-Z | Fixed 1.2V reference voltage (vs. programmable 0.5V–2.047V); identical pinout, I²C interface, and protection features. | Restricted to applications requiring fixed 1.2V feedback (e.g., specific PMIC interfaces); cannot support USB PD variable-voltage profiles. | Select only if system requires fixed VREF and no VOUT programmability - reduces BOM cost but sacrifices flexibility. |
| LM5175QPWPRQ1 | Non-I²C controller; uses resistor-programmed VOUT and OCP; no IPWM pin; supports 4.5V–65V input. | Lacks real-time digital reconfiguration; requires hardware changes for VOUT/OCP updates; suited for fixed-function industrial converters. | Choose when I²C control is unnecessary and higher VIN range (65V) is critical - trades configurability for extended input capability. |
Compared with MPQ4214GU-12-AEC1-Z, the MPQ4214GU-AEC1-Z offers full VREF/VOUT programmability essential for USB PD, while LM5175QPWPRQ1 provides wider input range but no digital interface - making MPQ4214GU-AEC1-Z optimal for automotive infotainment and ADAS power where firmware-controlled adaptability is required.
Availability
MPQ4214GU-AEC1-Z is available at Aetrix Electronics and suitable for automotive ADAS camera modules, USB Type-C vehicle docking stations, and industrial PC power supplies requiring stable component supply with AEC-Q100 compliance and long-term lifecycle support.
Supply support for MPQ4214GU-AEC1-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, with design focus on efficiency, integration, and automotive-grade reliability.
The MPQ4214 product line targets automotive and industrial buck-boost applications requiring AEC-Q100 qualification, I²C configurability, and seamless mode transition - specifically engineered for USB PD, camera power, and high-brightness LED systems.
FAQ
What is the minimum startup input voltage for MPQ4214GU-AEC1-Z?
The MPQ4214GU-AEC1-Z requires a minimum 6V input to initiate startup, verified across −40°C to +125°C junction temperature. Below 6V, UVLO prevents operation to protect internal circuitry; once regulated, it sustains operation down to 5V input.
How does the IPWM pin interact with I²C-set current limits?
The IPWM pin modulates the I²C-programmed maximum current limit: final limit = I²C limit × (IPWM duty cycle). For example, with I²C set to 3.0A and IPWM at 50% duty, output current is clamped at 1.5A - enabling analog dimming or dynamic load management without I²C traffic.
Is the QFN-27 package of MPQ4214GU-AEC1-Z compatible with automated optical inspection (AOI)?
Yes - the QFN-27 (5mm × 5mm) package features wettable flanks, allowing solder joint inspection via side-view AOI systems. The exposed thermal pad is electrically and thermally connected to PGND, and the pin pitch (0.5mm) meets standard SMT process capabilities.
Does MPQ4214GU-AEC1-Z support forced continuous conduction mode (FCCM)?
Yes - FCCM is enabled via I²C register bit, eliminating discontinuous conduction mode (DCM) at light loads. This maintains constant switching frequency and reduces output voltage ripple, critical for noise-sensitive applications like camera image sensors.
What protection mechanisms trigger the INT pin assertion?
The INT pin asserts low for four confirmed fault conditions: over-current protection (OCP), over-voltage protection (OVP), over-temperature protection (OTP), and power-good not generated (PNG). Each event sets a dedicated status bit in the I²C register, allowing root-cause identification after INT deassertion.
Can MPQ4214GU-AEC1-Z regulate output voltages below 1.2V?
Yes - the MPQ4214GU variant supports programmable reference voltage down to 0.5V (1mV steps), enabling VOUT regulation as low as 0.5V when configured with appropriate feedback divider. The MPQ4214GU-12 variant is fixed at 1.2V and cannot achieve sub-1.2V outputs.
How is thermal performance validated for automotive use?
Thermal shutdown is guaranteed at 150°C (TSD) with 25°C hysteresis (TSD-HYS), tested per AEC-Q100 stress conditions. On the EVQ4214-U-00A evaluation board, case temperature rise remains ≤15°C at 5A/12V output with 400kHz switching - confirming suitability for under-hood deployment.
MPQ4214GU-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 27-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Type:
- Transistor Driver
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Number of Outputs:
- 1
- Output Phases:
- 2
- Voltage - Supply (Vcc/Vdd):
- 5V ~ 40V
- Frequency - Switching:
- 200kHz, 300kHz, 400kHz, 600kHz
- Duty Cycle (Max):
- -
- Synchronous Rectifier:
- Yes
- Clock Sync:
- No
- Serial Interfaces:
- I2C
- Control Features:
- Current Limit, Dead Time Control, Dimming, Enable, Power Good, Slew Control, Soft Start
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 27-QFN (5x5)
MPQ4214GU-AEC1-Z FAQ
1.How can I place an order for MPQ4214GU-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4214GU-AEC1-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 MPQ4214GU-AEC1-Z reliable?
The price and inventory of MPQ4214GU-AEC1-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ4214GU-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ4214GU-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4214GU-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4214GU-AEC1-Z?
MPQ4214GU-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4214GU-AEC1-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 MPQ4214GU-AEC1-Z?
For technical support, including MPQ4214GU-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4214GU-AEC1-Z requirements.
6.How does Aetrix verify that MPQ4214GU-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ4214GU-AEC1-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 MPQ4214GU-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ4214GU-AEC1-Z?
All MPQ4214GU-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4214GU-AEC1-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 MPQ4214GU-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ4214GU-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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