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Monolithic Power Systems Inc. MPQ2167BGDE-AEC1-Z
- Part No.:
- MPQ2167BGDE-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 11-PowerVFQFN
- Datasheet:
-
MPQ2167BGDE-AEC1-Z.pdf
- Description:
- IC REG BUCK ADJ 4A 11QFN
- Quantity:
- Payment:
- Shipping:
Inventory:119
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Product details
Overview
MPQ2167BGDE-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade-1 qualified synchronous buck converter delivering up to 4A continuous output current, operating from 2.7V–6.0V input, regulating down to 0.606V, with configurable switching frequency from 300kHz to 2.2MHz, and integrated 35mΩ/25mΩ MOSFETs - deployed in automotive infotainment power rails.
For engineers reviewing the MPQ2167BGDE-AEC1-Z datasheet, MPQ2167BGDE-AEC1-Z pinout, MPQ2167BGDE-AEC1-Z application, or MPQ2167BGDE-AEC1-Z equivalent, key selection considerations include AEC-Q100 Grade-1 qualification, selectable AAM/FCCM light-load modes, internal compensation, wettable flank QFN-11 package, and 42μA quiescent current at 25°C.
Technical Context
The MPQ2167B uses peak-current-mode control with internal compensation for fast transient response and cycle-by-cycle over-current protection via valley current detection. Its dual-mode operation-advanced asynchronous mode (AAM) below 0.4V on MODE pin and forced continuous conduction mode (FCCM) above 1.2V-enables efficiency optimization across load ranges.
It integrates a high-side MOSFET (35mΩ typ. @ 5V), low-side synchronous rectifier (25mΩ typ.), power-good indicator with ±5% hysteresis, and external sync capability up to 2.2MHz. Thermal shutdown activates at 170°C with 25°C hysteresis, and UVLO has 2.5V rising threshold with 350mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 6.0V - supports direct connection to automotive 3.3V/5V rails and battery-backed systems without pre-regulation. |
| Output Current | Up to 4A continuous - sufficient for powering SoCs, DSPs, or display controllers in automotive clusters. |
| Feedback Reference | 0.606V ±10mV - enables precise low-voltage regulation (e.g., 1.2V, 1.8V) using standard resistor dividers. |
| Switching Frequency | Configurable 300kHz–2.2MHz - allows trade-off between inductor size (higher fSW → smaller L) and efficiency (lower fSW → lower switching loss). |
| Quiescent Current | 42μA typ. in AAM - extends battery life in always-on telematics modules during sleep states. |
| Thermal Shutdown | 170°C activation with 25°C hysteresis - ensures reliable auto-recovery under sustained overload or poor PCB thermal design. |
| Protection Features | Cycle-by-cycle OCP, short-circuit protection, VOUT over-voltage (115% of VFB), VIN UVLO, and thermal shutdown - meets ASIL-B functional safety prerequisites for non-safety-critical power rails. |
Pinout & Package
MPQ2167BGDE-AEC1-Z is housed in a wettable flank QFN-11 package (2mm × 3mm, 0.5mm pitch), optimized for automated optical inspection (AOI) and robust solder joint reliability in automotive reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power input | Primary supply path for high-side/low-side MOSFETs; requires local 10μF ceramic decoupling to minimize switching noise. |
| 2 PGND | Power ground | High-current return path for input/output capacitors and inductor; must connect to large copper pour for thermal and EMI performance. |
| 3 FREQ/SYNC | Frequency configuration & sync input | Resistor-to-GND sets fSW; external clock (0.3–2.2MHz) synchronizes switching edge to avoid beat frequencies in multi-rail systems. |
| 4 AGND | Analog ground | Reference for FB, SS, EN, and internal error amplifier; must be star-connected to PGND at single point to avoid noise coupling. |
| 5 FB | Feedback input | Senses regulated output via resistor divider; used by PG, UVLO, and OVP circuits - accuracy directly impacts output voltage tolerance. |
| 6 SS | Soft-start control | Capacitor-to-GND sets ramp time; floating enables internal 1ms default - prevents inrush current into downstream capacitance. |
| 7 SW | Switch node | Drives external inductor; high dv/dt node requiring tight layout and minimized trace area to reduce EMI and ringing. |
| 8 PG | Power-good indicator | Open-drain output pulled to VIN; asserts high when VFB is within ±15% of 0.606V - used for sequenced power-up of downstream ICs. |
| 9 SYNCO | Synchronization output | 180° phase-shifted clock output - enables interleaved operation with second MPQ2167B for reduced input ripple and thermal spreading. |
| 10 MODE | Light-load mode select | Logic-high (≥1.2V) forces FCCM for fixed-frequency, low-ripple operation; logic-low (≤0.4V) enables AAM for ultra-low IQ at light loads. |
| 11 EN | Enable control | Active-high enable with 1.2V threshold; internal 1MΩ pulldown allows simple pull-up or microcontroller GPIO control without external components. |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank QFN-11 package | Enables AOI-compatible solder joint inspection critical for automotive AEC-Q100 production traceability and field reliability. |
| Selectably configurable AAM/FCCM | AAM reduces IQ to 42μA at light load; FCCM maintains fixed 2.2MHz operation for predictable EMI and minimal output ripple under dynamic loads. |
| Internal compensation | Eliminates need for external Type-II/III compensation network - reduces BOM count, layout area, and tuning effort while maintaining stability across 1µH–2.2µH inductors. |
| 100% duty cycle capability | Supports dropout operation down to VOUT ≈ VIN − IOUT × RDS(ON-P), enabling use in post-regulator applications where input may dip near output voltage. |
| Valley-current OCP with auto-recovery | Detects overcurrent during low-side conduction, preventing runaway during short-circuit events; thermal shutdown recovery is autonomous without host intervention. |
Applications
| Automotive Infotainment | Automotive Digital Cluster |
|---|---|
|
Use Scenario: Powering ARM-based application processors and DDR memory in head-unit systems with 12V battery input and strict EMC requirements. IC Role / Device Role / Timing Role: Primary 1.2V/1.8V/3.3V step-down regulator with AEC-Q100 Grade-1 qualification and SYNC input for EMI spread-spectrum coordination. Use Value: 4A output supports burst-mode CPU loads; 2.2MHz operation allows <1.0mm height inductors; wettable flank package ensures solder joint integrity over thermal cycling. |
Use Scenario: Supplying TFT-LCD bias rails and MCU cores in instrument clusters exposed to -40°C to +125°C ambient. IC Role / Device Role / Timing Role: High-efficiency, thermally robust buck converter with thermal shutdown (170°C) and wide-input operation (2.7V–6.0V) for cold-crank resilience. Use Value: 42μA quiescent current extends battery backup runtime; PG signal sequences display initialization; AAM mode minimizes standby power during vehicle sleep. |
| Automotive Telematics | Industrial Portable Instruments |
|
Use Scenario: Providing stable 3.3V rail for LTE/CAN modules and GNSS receivers in telematics control units (TCUs) with CAN FD and cellular connectivity. IC Role / Device Role / Timing Role: Input-filter tolerant buck regulator with VIN UVLO (2.5V rising) and robust ESD rating (±2kV HBM) for noisy automotive bus environments. Use Value: External SYNC allows synchronization with baseband processor clocks to avoid heterodyne interference; short-circuit protection prevents latch-up during antenna fault events. |
Use Scenario: Powering portable test equipment (e.g., handheld oscilloscopes, multimeters) running from single-cell Li-ion (3.0V–4.2V) or USB-C PD sources. IC Role / Device Role / Timing Role: Compact, high-efficiency DC-DC converter supporting 0.606V–VIN output range and 100% duty cycle for low-dropout operation during battery depletion. Use Value: Internal MOSFETs eliminate Schottky diode BOM cost and footprint; QFN-11 (2×3mm) enables <100mm² total solution size; 4A capability supports active probes and ADC front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ2169BGU-AEC1-Z | Higher 6A output rating, same 2.7V–6.0V input, but larger QFN-13 (3×4mm) package and 65μA IQ in AAM. | Better suited for higher-current cluster displays or ADAS domain controllers requiring >4A. | Select when peak load exceeds 4A or thermal margin is constrained; verify PCB layout space for larger footprint. |
| TPS6286418RTER | Texas Instruments part: 4A, 2.7V–6V, 1.8V fixed output, 1.8MHz fSW, 25μA IQ, but no AAM/FCCM select and only 1.8V fixed (non-adjustable) output. | Limited to fixed 1.8V applications; lacks MODE pin flexibility and external frequency programming. | Choose only for drop-in replacement in legacy 1.8V-only designs where adjustable VOUT and light-load mode control are unnecessary. |
Compared with MPQ2167BGDE-AEC1-Z, MPQ2169BGU-AEC1-Z trades higher current and larger size for identical feature set, while TPS6286418RTER sacrifices configurability and adjustability for ultra-low IQ - making MPQ2167B optimal for flexible, AEC-Q100-compliant 0.606V–5.5V designs needing both efficiency and control.
Availability
MPQ2167BGDE-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment, digital clusters, and telematics modules requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MPQ2167BGDE-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 core expertise in DC-DC conversion, motor drivers, and LED lighting controllers.
The MPQ2167B belongs to MPS's automotive-grade buck converter product line, designed specifically for AEC-Q100 Grade-1 operation in infotainment, cluster, and telematics subsystems demanding high efficiency, small form factor, and robust protection.
FAQ
What is the minimum output voltage supported by MPQ2167BGDE-AEC1-Z?
The device regulates down to 0.606V ±10mV (typical) at the FB pin, enabling precise generation of common logic rails such as 0.8V, 1.0V, 1.2V, 1.8V, and 3.3V using standard resistor dividers. This reference voltage remains stable across -40°C to +125°C junction temperature.
How does the MODE pin affect efficiency and output ripple?
When MODE ≤ 0.4V, the IC enters Advanced Asynchronous Mode (AAM), reducing switching frequency under light load to cut gate and switching losses - achieving 42μA IQ. When MODE ≥ 1.2V, it forces Fixed Continuous Conduction Mode (FCCM), maintaining constant 2.2MHz operation for lower output ripple and predictable EMI, at the cost of higher light-load IQ (~120μA).
Can MPQ2167BGDE-AEC1-Z synchronize to an external clock?
Yes - the FREQ/SYNC pin accepts external TTL/CMOS clocks from 300kHz to 2.2MHz. The internal oscillator locks to the falling edge of the external signal. Synchronization eliminates beat frequencies in multi-converter systems and supports EMI reduction via coordinated switching edges.
What protection features are implemented, and how do they recover?
The IC includes cycle-by-cycle over-current protection (valley detection), short-circuit protection with auto-recovery, VOUT over-voltage limit (115% of VFB), VIN UVLO (2.5V rising), and thermal shutdown (170°C with 25°C hysteresis). All protections except thermal shutdown reset automatically after fault removal; thermal shutdown recovers autonomously once die temperature falls below 145°C.
Is the QFN-11 package lead-free and RoHS-compliant?
Yes - MPQ2167BGDE-AEC1-Z uses a lead-free, halogen-free, RoHS-compliant wettable flank QFN-11 package. The wettable flanks support automated optical inspection (AOI) of solder joints, fulfilling automotive manufacturing requirements for process traceability and zero-defect assembly.
Does MPQ2167BGDE-AEC1-Z require external compensation components?
No - the device operates in internally compensated mode, eliminating external Type-II or Type-III compensation networks. Stability is guaranteed across recommended inductor values (1µH–2.2µH) and output capacitor ESR ranges, simplifying design and reducing bill-of-materials count.
What is the maximum allowable input voltage, and what happens beyond that?
The absolute maximum VIN is 6.5V. Operation above 6.0V violates recommended conditions and risks permanent damage. Exceeding 6.5V may cause immediate failure due to oxide breakdown in the integrated MOSFETs or internal logic. Always include input transient suppression (e.g., TVS) in automotive designs.
MPQ2167BGDE-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MPQ
- Package/Case:
- 11-PowerVFQFN
- 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):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.606V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 4A
- Frequency - Switching:
- 450kHz ~ 2.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 11-QFN (2x3)
MPQ2167BGDE-AEC1-Z FAQ
1.How can I place an order for MPQ2167BGDE-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ2167BGDE-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 MPQ2167BGDE-AEC1-Z reliable?
The price and inventory of MPQ2167BGDE-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 MPQ2167BGDE-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ2167BGDE-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ2167BGDE-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ2167BGDE-AEC1-Z?
MPQ2167BGDE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ2167BGDE-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 MPQ2167BGDE-AEC1-Z?
For technical support, including MPQ2167BGDE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ2167BGDE-AEC1-Z requirements.
6.How does Aetrix verify that MPQ2167BGDE-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ2167BGDE-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 MPQ2167BGDE-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ2167BGDE-AEC1-Z?
All MPQ2167BGDE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ2167BGDE-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 MPQ2167BGDE-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ2167BGDE-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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