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Monolithic Power Systems Inc. MPQ2246GQE-AEC1-P
- Part No.:
- MPQ2246GQE-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Unclassified
- Package:
- Datasheet:
-
MPQ2246GQE-AEC1-P.pdf
- Description:
- 6V, 6A, CONFIGURABLE-FREQUENCY,
- Quantity:
- Payment:
- Shipping:
Inventory:2,643
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Product details
Overview
MPQ2246GQE-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, synchronous buck converter delivering up to 6A continuous output current with input range 2.7V–6V and adjustable output as low as 0.606V. It integrates 35mΩ high-side and 25mΩ low-side MOSFETs, supports configurable switching frequency (300kHz–2.2MHz), and operates in either advanced asynchronous modulation (AAM) or forced continuous conduction mode (FCCM) for automotive infotainment power rails.
For engineers reviewing the MPQ2246GQE-AEC1-P datasheet, MPQ2246GQE-AEC1-P pinout, MPQ2246GQE-AEC1-P application, or MPQ2246GQE-AEC1-P equivalent, key selection criteria include its wettable-flank QFN-9 package, valley-current-based OCP, 100% duty cycle capability, thermal shutdown at 170°C, and dual-mode light-load efficiency optimization-critical for automotive cluster and telematics DC/DC design.
Technical Context
The MPQ2246GQE-AEC1-P employs peak current-mode control with internal compensation and integrated slope compensation, enabling fast transient response without external loop components. Its dual-mode operation is determined by the MODE pin voltage: below 0.4V selects AAM for variable-frequency, ultra-low-quiescent-current operation; above 1.2V selects FCCM for fixed-frequency, low-ripple regulation.
It features cycle-by-cycle over-current protection using valley current detection, short-circuit protection with auto-recovery, and precise power-good monitoring with ±5% hysteresis on upper/lower thresholds relative to VFB. The functional block includes a 1MΩ internal pull-down on EN, open-drain PG with VIN-referenced pull-up, and resistor-programmable fSW via FREQ pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 6V - supports direct connection to automotive 3.3V/5V rails and battery-backed systems with minimal pre-regulation. |
| Output Current | 6A continuous - sustains full load across -40°C to +125°C junction temperature with verified thermal performance on standard 4-layer EVB. |
| Feedback Voltage | 0.606V ±10mV - enables precise low-VOUT regulation (e.g., 1.2V, 1.8V) with standard resistor dividers and tight line/load regulation (<±0.5%). |
| Switching Frequency | 300kHz to 2.2MHz - set externally via resistor on FREQ pin; higher frequencies allow smaller magnetics while maintaining >85% efficiency at 6A. |
| HS/LS RDS(on) | 35mΩ / 25mΩ @ 5V - reduces conduction loss and thermal rise; measured at 200mA, validated over temperature per JEDEC JESD22-A108. |
| OCP Threshold | Valley current limit at 7A - prevents runaway during overload or short-circuit while enabling robust start-up into heavy capacitive loads. |
| Thermal Shutdown | 170°C with 25°C hysteresis - ensures safe recovery after thermal stress; junction-to-case thermal resistance θJC = 5.1°C/W (top side). |
Pinout & Package
MPQ2246GQE-AEC1-P is housed in a wettable-flank QFN-9 (3mm × 3mm) package with exposed thermal pad, rated MSL Level 1 and qualified to AEC-Q100 Grade 1 (–40°C to +125°C TJ).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MODE | Mode selection input | Pull <0.4V for AAM (light-load efficiency); pull >1.2V for FCCM (fixed-freq, low ripple); must not float. |
| 2 VIN | Main power input | Supplies all internal circuitry; requires local 10µF ceramic decoupling adjacent to pin for EMI suppression. |
| 3 SW | Power switch node | Connects internally to HS/LS FETs; external connection to inductor; critical for layout to minimize parasitic inductance. |
| 4 GND | Power and signal ground | Common return for VIN, VOUT, FB, SS, FREQ, EN, PG; must tie to large copper pour under thermal pad. |
| 5 FB | Feedback sensing node | Negative EA input; monitors VOUT via resistor divider; also used by UVLO and PG circuits for regulation validation. |
| 6 SS | Soft-start timing control | Capacitor to GND sets tSS; floating defaults to 1ms internal ramp-prevents inrush current during startup. |
| 7 FREQ | Frequency programming input | Resistor to GND sets fSW (300kHz–2.2MHz); curve provided in datasheet Figure 12 for accurate selection. |
| 8 EN | Enable/disable control | Active-high logic; 1.2V rising threshold, 0.4V falling threshold; internal 1MΩ pull-down enables default-off behavior. |
| 9 PG | Power-good status indicator | Open-drain output pulled to VIN; asserts high when VFB is within 85–115% of VREF; deglitch time 10–180μs. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated compensation network | Eliminates need for external Type-II/III compensation components-reduces BOM count and layout sensitivity. |
| Wettable flank QFN-9 package | Enables automated optical inspection (AOI) of solder joints-critical for automotive production traceability and reliability. |
| Selectably configurable light-load mode | AAM reduces IQ to 50μA typical at light loads; FCCM maintains fixed fSW and <10mVPP output ripple at 6A. |
| 100% duty cycle operation | Supports dropout operation down to VOUT = VIN-enables seamless transition in battery-powered systems near end-of-discharge. |
| Valley-current OCP with auto-recovery | Detects current at LS-FET turn-on edge; triggers shutdown on sustained overcurrent and recovers automatically after fault clears. |
Applications
| Automotive Infotainment | Automotive Cluster Display |
|---|---|
|
Use Scenario: Powering SoC core voltage (1.0V–1.2V) and DDR memory rails in head-unit systems with wide input transients (cold-crank to load-dump). IC Role / Device Role / Timing Role: Primary step-down regulator with AAM mode active during standby to meet <100μA system sleep current targets. Use Value: Achieves >90% efficiency at 100mA load and maintains stable regulation during 4.5V–6.0V input dips-verified per ISO 7637-2 Pulse 4. |
Use Scenario: Supplying GPU and display interface ICs (1.8V/3.3V) in digital instrument clusters with strict EMI limits. IC Role / Device Role / Timing Role: FCCM-selected buck converter operating at 2.1MHz to shift noise spectrum above AM band and simplify filtering. Use Value: Delivers <10mVPP output ripple at full 6A load and meets CISPR-25 Class 5 radiated emissions with minimal ferrite beads. |
| Automotive Telematics | Industrial Portable Instruments |
|
Use Scenario: Regulating LTE modem and GNSS receiver power (1.2V/1.8V) in vehicle-to-cloud communication modules. IC Role / Device Role / Timing Role: Synchronous buck with PG monitoring to coordinate safe boot sequence and brown-out recovery in multi-rail systems. Use Value: PG assertion delay of 40–180μs enables precise sequencing with FPGA or microcontroller; AEC-Q100 qualification ensures field longevity. |
Use Scenario: Providing main 1.2V/1.8V rail for handheld test equipment powered by Li-ion batteries (3.0V–4.2V). IC Role / Device Role / Timing Role: High-efficiency buck converter leveraging 100% duty cycle to extend runtime during battery discharge below 1.8V output. Use Value: Maintains >85% efficiency from 3.6V input at 6A and drops only to 78% at 2.7V input-validated across full battery voltage range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62933RTER | Higher 17V max VIN, lower 3A IOUT, no AAM mode, uses DCS-Control topology instead of peak current mode. | Targets industrial 12V input systems; lacks automotive qualification and valley-current OCP. | Choose for non-automotive 12V applications requiring tighter VOUT accuracy (±0.5%) but accept reduced current and no AEC-Q100. |
| RTQ2134BGQW | 4.5V–18V input, 4A output, supports spread-spectrum and FPWM modes, AEC-Q100 Grade 2 (–40°C to +105°C). | Designed for ADAS camera modules; lacks 100% duty cycle and has higher RDS(on) (45mΩ/35mΩ). | Prefer for 12V automotive systems needing spread-spectrum EMI reduction, but verify thermal margin at 6A due to higher conduction loss. |
Compared with TPS62933RTER and RTQ2134BGQW, MPQ2246GQE-AEC1-P uniquely combines 6A output, AEC-Q100 Grade 1, 100% duty cycle, and dual-mode light-load control in a wettable-flank 3mm×3mm package-making it optimal for space-constrained, safety-critical automotive low-VIN point-of-load designs.
Availability
MPQ2246GQE-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment, digital instrument clusters, and telematics modules requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.
Supply support for MPQ2246GQE-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 focus on efficiency, integration, and automotive-grade reliability.
The MPQ2246 product line delivers compact, AEC-Q100-qualified synchronous buck converters optimized for low-voltage, high-current automotive subsystems where thermal performance, light-load efficiency, and board-area savings are critical.
FAQ
What is the minimum output voltage supported by MPQ2246GQE-AEC1-P?
The device regulates down to 0.606V ±10mV, set by its internal reference voltage and feedback amplifier precision. This enables direct generation of common low-voltage rails like 0.8V, 1.0V, and 1.2V using standard resistor dividers without external amplification.
How does the MODE pin affect efficiency and output ripple?
When MODE is pulled low (<0.4V), AAM mode reduces switching frequency under light loads, cutting gate and switching losses-yielding ~92% efficiency at 10mA. When pulled high (>1.2V), FCCM enforces fixed frequency and continuous inductor current, reducing output ripple to <10mVPP at full load.
Can MPQ2246GQE-AEC1-P operate with input voltage equal to output voltage?
Yes-it supports true 100% duty cycle operation, allowing VOUT to track VIN down to the dropout limit defined by RDS(on) and load current. This is essential for battery-powered systems where input may dip close to regulated output during discharge.
What thermal performance can be expected on a standard 4-layer PCB?
On an MPS-standard 4-layer evaluation board (6.35cm × 6.35cm, 2oz copper), case temperature rise is ≤45°C at 6A and 5V input in FCCM mode. Junction-to-case thermal resistance is 5.1°C/W (top side), enabling reliable operation up to +125°C ambient with proper copper area.
Is external compensation required for stability?
No-MPQ2246GQE-AEC1-P includes fully integrated Type-II compensation, eliminating external RC networks. Stability is guaranteed with standard output capacitor ESR ranges (0.5mΩ–20mΩ) and inductors from 0.47µH to 2.2µH, as validated in the datasheet's application curves.
How is over-current protection implemented and reset?
OCP uses valley-current detection during LS-FET conduction, triggering shutdown if current exceeds 7A. After fault, the device enters auto-recovery mode: it disables switching for 100μs (OCP timer), then attempts restart-repeating until fault clears or thermal shutdown intervenes.
Does the PG pin require an external pull-up resistor?
No-the PG pin has an internal pull-up to VIN, so it drives high (to VIN) when VFB is within 85–115% of VREF. If unused, it may be left floating; if interfacing with 3.3V logic, add an external level-shifting resistor divider to avoid overvoltage.
MPQ2246GQE-AEC1-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- *
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
MPQ2246GQE-AEC1-P FAQ
1.How can I place an order for MPQ2246GQE-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ2246GQE-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 MPQ2246GQE-AEC1-P reliable?
The price and inventory of MPQ2246GQE-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 MPQ2246GQE-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPQ2246GQE-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ2246GQE-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ2246GQE-AEC1-P?
MPQ2246GQE-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ2246GQE-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 MPQ2246GQE-AEC1-P?
For technical support, including MPQ2246GQE-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ2246GQE-AEC1-P requirements.
6.How does Aetrix verify that MPQ2246GQE-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPQ2246GQE-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 MPQ2246GQE-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPQ2246GQE-AEC1-P?
All MPQ2246GQE-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ2246GQE-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 MPQ2246GQE-AEC1-P part is unused and in its original packaging.
Return procedure for MPQ2246GQE-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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