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Monolithic Power Systems Inc. MPQ2241GDE-AEC1-P
- Part No.:
- MPQ2241GDE-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Unclassified
- Package:
- Datasheet:
-
MPQ2241GDE-AEC1-P.pdf
- Description:
- 6V, 1A, CONFIGURABLE-FREQUENCY,
- Quantity:
- Payment:
- Shipping:
Inventory:1,448
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Product details
Overview
MPQ2241GDE-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, synchronous buck converter delivering up to 1A 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 MPQ2241GDE-AEC1-P datasheet, MPQ2241GDE-AEC1-P pinout, MPQ2241GDE-AEC1-P application, or MPQ2241GDE-AEC1-P equivalent, key selection criteria include its wettable-flank QFN-9 (2mm×3mm) package, valley-current-based OCP with 2.5A limit, ±1.5% VFB accuracy over temperature, PG open-drain indicator with 85–115% regulation window, and AEC-Q100 qualification for under-hood automotive use.
Technical Context
The MPQ2241GDE-AEC1-P employs peak current-mode control with internal compensation and a dedicated valley-current detection circuit for robust over-current protection. Its dual-mode operation-AAM for light-load efficiency (frequency scaling down to ~100kHz) and FCCM for fixed-frequency, low-ripple performance-is selected via the MODE pin voltage threshold (0.4V/1.2V).
Functional block integration includes a 1MΩ internal EN pull-down, 34pF soft-start capacitor timing reference, 600kΩ FREQ resistor interface for precise fSW setting, and thermal shutdown at 170°C with 25°C hysteresis. The PG output uses FB monitoring with dual thresholds (PGLOW_R = 85%, PGUP_R = 115%) and deglitching (10–180μs).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 6V - supports wide automotive battery transients including cold-crank (2.7V) and load-dump (6V) |
| Output Current | 1A continuous - sufficient for powering SoCs, display drivers, and sensor hubs in clusters and telematics |
| Feedback Voltage | 0.606V ±1.5% - enables precise low-VOUT regulation (e.g., 1.2V @ 5% tolerance with 1% resistors) |
| Switching Frequency | 300kHz to 2.2MHz - selectable via external resistor on FREQ pin; allows optimization of size vs. EMI |
| HS/LS RDS(on) | 35mΩ / 25mΩ - reduces conduction loss at 1A, enabling >90% efficiency at 3.6VIN/1.8VOUT |
| OCP Threshold | Valley current limit at 2.5A - prevents runaway during short-circuit while maintaining stability under transient loads |
| Thermal Shutdown | 170°C with 25°C hysteresis - ensures safe auto-recovery in enclosed automotive enclosures without external thermal management |
Pinout & Package
MPQ2241GDE-AEC1-P is housed in a wettable-flank QFN-9 package (2mm × 3mm, 0.5mm pitch), optimized for automated optical inspection (AOI) and high-reliability solder joint formation in automotive PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MODE | Mode selection input | Pull <0.4V for AAM (efficiency-optimized); pull >1.2V for FCCM (fixed-frequency, low-ripple); must not float |
| 2 VIN | Main power input | Supplies all internal circuitry and switches; requires local 10μF ceramic decoupling adjacent to pin |
| 3 SW | Switch node | Connects internally to HS/LS FETs; external connection to inductor; critical for EMI layout and voltage stress rating |
| 4 PGND | Power ground | Low-impedance return path for switch currents; must tie to large copper pour shared with input/output capacitors |
| 5 FB | Feedback sense | Negative EA input; sets VOUT via resistor divider; also used by PG and UVLO circuits for regulation monitoring |
| 6 SS | Soft-start timing | Capacitor-to-ground sets tSS (e.g., 1nF ≈ 1ms); floating enables internal 1ms default |
| 7 FREQ | Frequency programming | Resistor-to-ground sets fSW (e.g., 65kΩ → 450kHz; 9.31kΩ → 2.1MHz); linear relationship per datasheet curve |
| 8 EN | Enable control | Active-high logic input (1.2V rise, 0.4V fall); internal 1MΩ pull-down enables direct MCU GPIO control |
| 9 PG | Power good indicator | Open-drain output pulled to VIN; asserts high when VFB is within 85–115% of VREF; requires external pull-up if used |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Compensation Network | Eliminates need for external Type-II/III compensation components, reducing BOM count and layout sensitivity |
| AEC-Q100 Grade 1 Qualification | Validated for operation from −40°C to +125°C junction temperature, meeting automotive reliability and stress-test requirements |
| Wettable Flank Package | Enables automated solder-joint inspection (AOI) on bottom-side pins, improving process yield in automotive SMT lines |
| 100% Duty Cycle Capability | Supports dropout operation down to VOUT = VIN − ILOAD × RDS(on)_HS, critical for battery-backed systems near end-of-discharge |
| Auto-Recovery Thermal Protection | Shuts down at 170°C and resumes operation after cooldown, avoiding latch-off failures in thermally constrained enclosures |
Applications
| Automotive Infotainment | Automotive Clusters |
|---|---|
Use Scenario: Powering ARM-based application processors and DDR memory in head-unit systems with 12V battery input. IC Role / Device Role / Timing Role: Primary 1.1V/1.8V/3.3V point-of-load regulator with fast transient response to handle CPU burst loads. Use Value: AAM mode maintains >85% efficiency at 10mA standby, extending system sleep time; FCCM ensures <10mV ripple during GPU rendering. |
Use Scenario: Supplying TFT-LCD bias rails and microcontroller core voltage in digital instrument clusters. IC Role / Device Role / Timing Role: Secondary buck stage stepping down 5V pre-regulator output to 1.2V for MCU core and 3.3V for CAN transceivers. Use Value: Wettable flank QFN enables AOI verification in safety-critical cluster PCBs; PG signal synchronizes display initialization sequence. |
| Automotive Telematics | Industrial Portable Instruments |
Use Scenario: Providing stable 1.8V and 3.3V rails for LTE modems, GNSS receivers, and secure boot ICs in telematics control units (TCUs). IC Role / Device Role / Timing Role: Dual-output capable via cascaded configuration; handles cold-crank (2.7VIN) without dropout using 100% duty cycle. Use Value: 2.2MHz max fSW allows use of 0805-size inductors, shrinking total solution size by 35% vs. 500kHz alternatives. |
Use Scenario: Powering handheld test equipment with Li-ion battery input (2.8V–4.2V) and multiple analog/digital subsystems. IC Role / Device Role / Timing Role: Main system regulator delivering 1A to FPGA fabric and ADC front-end; supports battery gauge communication via PG status. Use Value: Low 50μA quiescent current in AAM extends runtime in sleep mode; valley-current OCP prevents false trips during sensor sampling bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62840DLCR | Lower IQ (300nA) but max IOUT = 0.6A; fixed 2.2MHz fSW; no MODE-selectable AAM/FCCM | Better for ultra-low-power always-on sensors; insufficient for 1A cluster MCU cores | Select only when load ≤600mA and AEC-Q100 is not required |
| LM61480QRNXTQ1 | Higher IOUT (8A), larger HTSSOP-16 package; requires external compensation; no wettable flank | Suitable for high-current domain controllers; over-specified and costlier for 1A infotainment rails | Choose only when scaling to multi-rail power trees requiring shared layout reuse |
Compared with TPS62840DLCR and LM61480QRNXTQ1, MPQ2241GDE-AEC1-P uniquely balances AEC-Q100 compliance, 1A capability, wettable-flank manufacturability, and dual-mode efficiency-making it optimal for space-constrained, safety-aware automotive sub-systems where both light-load battery life and full-load stability matter.
Availability
MPQ2241GDE-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment, digital clusters, and telematics modules requiring stable component supply across extended temperature and lifecycle demands.
Supply support for MPQ2241GDE-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 MPQ2241 belongs to MPS's AEC-Q100-qualified DC/DC converter product line, engineered specifically for demanding automotive subsystems where small size, thermal resilience, and functional safety awareness are mandatory.
FAQ
What is the minimum output voltage achievable with MPQ2241GDE-AEC1-P?
The MPQ2241GDE-AEC1-P regulates down to 0.606V ±1.5% over temperature, set by its internal reference and feedback amplifier architecture. This enables direct powering of modern low-voltage cores such as ARM Cortex-A53 (0.8V min) and LPDDR4 (1.1V) with appropriate resistor-divider selection and layout attention to FB trace noise immunity.
How does the MODE pin affect light-load efficiency?
Pulling MODE below 0.4V activates Advanced Asynchronous Modulation (AAM), which dynamically reduces switching frequency under light loads to minimize gate drive and switching losses. At 10mA load, this achieves >85% efficiency-up to 15% higher than FCCM mode at same conditions-without compromising regulation accuracy.
Is external compensation required for stable operation?
No. The MPQ2241GDE-AEC1-P features fully integrated Type-II compensation, eliminating external capacitors and resistors from the feedback loop. Stability is guaranteed across all valid input/output combinations and inductor DCR values specified in the datasheet, simplifying design and reducing layout risk.
What protection features are implemented, and how do they behave during fault conditions?
The device includes valley-current OCP (2.5A), short-circuit protection with auto-recovery, 170°C thermal shutdown with 25°C hysteresis, and output over-voltage protection at 115% of VREF. During SCP, the converter cycles on/off until fault clears; OCP triggers immediate shutdown with restart attempt after 100μs timer expiration.
Can MPQ2241GDE-AEC1-P operate with 100% duty cycle, and under what conditions?
Yes. The MPQ2241GDE-AEC1-P supports 100% duty cycle operation when VOUT approaches VIN minus ILOAD × RDS(on)_HS. This occurs during low-dropout conditions-for example, supplying 3.3V from a 3.6V input at 500mA-enabling uninterrupted operation during battery brownout or upstream pre-regulator sag.
What is the significance of the wettable flank package for automotive manufacturing?
The wettable flank QFN-9 exposes vertical metal sidewalls on all perimeter pins, allowing automated optical inspection (AOI) systems to verify solder fillet formation and voiding. This meets IPC-A-610 Class 3 and automotive OEM process validation requirements, significantly improving first-pass yield in high-reliability SMT lines.
How is switching frequency set, and what tolerance should be expected?
Switching frequency is set by connecting a resistor from FREQ pin to PGND. The relationship is monotonic and documented in Figure 12 (fSW vs. RFREQ); typical tolerance is ±10% over temperature and process. For 2.1MHz operation, a 9.31kΩ ±1% resistor is recommended per datasheet characterization.
MPQ2241GDE-AEC1-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- *
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
MPQ2241GDE-AEC1-P FAQ
1.How can I place an order for MPQ2241GDE-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ2241GDE-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 MPQ2241GDE-AEC1-P reliable?
The price and inventory of MPQ2241GDE-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 MPQ2241GDE-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPQ2241GDE-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ2241GDE-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ2241GDE-AEC1-P?
MPQ2241GDE-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ2241GDE-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 MPQ2241GDE-AEC1-P?
For technical support, including MPQ2241GDE-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ2241GDE-AEC1-P requirements.
6.How does Aetrix verify that MPQ2241GDE-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPQ2241GDE-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 MPQ2241GDE-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPQ2241GDE-AEC1-P?
All MPQ2241GDE-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ2241GDE-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 MPQ2241GDE-AEC1-P part is unused and in its original packaging.
Return procedure for MPQ2241GDE-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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