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Monolithic Power Systems Inc. MPQ2908AGLE-AEC1-P
- Part No.:
- MPQ2908AGLE-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
MPQ2908AGLE-AEC1-P.pdf
- Description:
- 4V-60V INPUT, CURRENT MODE SYNCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,809
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Product details
Overview
MPQ2908AGLE-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade-1 qualified, high-voltage synchronous step-down controller supporting 4V–60V input, driving dual N-channel MOSFETs with current-mode PWM control, 0.8V ±1.5% reference accuracy, and programmable 100–1000kHz switching frequency-designed for automotive cold-crank DC/DC conversion in engine control units.
For engineers reviewing the MPQ2908AGLE-AEC1-P datasheet, MPQ2908AGLE-AEC1-P pinout, MPQ2908AGLE-AEC1-P application, or MPQ2908AGLE-AEC1-P equivalent, key selection considerations include its wettable-flank QFN-20 (3mm×4mm) package, dual-gate driver capability, AAM light-load efficiency mode, precision OVP/OCP protection, and VIN UVLO hysteresis of 800mV for robust automotive power sequencing.
Technical Context
The MPQ2908AGLE-AEC1-P implements a pulse-width modulation current-mode architecture with cycle-by-cycle current limiting and slope compensation, enabling stable regulation across wide input/output ratios. Its error amplifier delivers 70dB open-loop DC gain and 500μS transconductance to support fast transient response with external COMP–SGND compensation networks.
It integrates dual gate drivers with 2Ω TG pull-up, 1Ω TG pull-down, 3Ω BG pull-up, and 1Ω BG pull-down, plus a floating high-side driver powered by BST with 3.05V UVLO and 170mV hysteresis. The device supports forced CCM or AAM operation via CCM/AAM pin voltage control and provides 180° out-of-phase SYNCO output for interleaved multi-phase designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 60V - enables direct battery-supplied operation across automotive 12V/24V/48V systems and industrial HV rails. |
| Feedback Reference | 0.800V ±1.5% - ensures tight output regulation over –40°C to +125°C junction temperature range. |
| Switching Frequency | 100kHz to 1000kHz - programmable via FREQ resistor or synchronized externally to reduce EMI in noise-sensitive domains. |
| Current Sense Threshold | 25mV / 50mV / 75mV - selectable via ILIM pin connection (SGND/VCC1/floating) for precise peak-current limiting. |
| Power Good Accuracy | ±3% VFB hysteresis with 28μs delay - provides reliable system-level power sequencing and fault detection. |
| Thermal Shutdown | 170°C with 20°C hysteresis - protects against sustained overload while allowing recovery after cooling. |
| OVP Threshold | 110–120% VFB - triggers controlled discharge mode to safeguard downstream loads during regulator failure. |
Pinout & Package
MPQ2908AGLE-AEC1-P is housed in a wettable-flank QFN-20 package (3mm × 4mm, 0.5mm pitch) with exposed thermal pad electrically isolated from SGND/PGND-requires PCB layout connection to both grounds for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 19) | Main input supply | Accepts 4–60V; requires local ceramic decoupling to suppress high-di/dt spikes at startup and load transients. |
| EN/SYNC (Pin 20) | Enable & sync input | 1.22V enable threshold with 130mV hysteresis; doubles as external clock input (100–1000kHz) for EMI reduction. |
| VCC2 (Pin 1) | External bias supply | 4.7–12V input to power internal VCC1 regulator-reduces dissipation when sourced from auxiliary rail. |
| VCC1 (Pin 2) | Internal bias rail | 5V ±5% regulated output powering gate drivers and analog circuitry; requires ≥1μF PGND-decoupled ceramic cap. |
| SGND (Pin 3) | Signal ground reference | Low-noise analog return for FB, COMP, SS, SENSE+/-; must be star-connected near output capacitors. |
| SS (Pin 4) | Soft-start control | 4μA current source charges external capacitor to ramp reference-prevents output overshoot during startup. |
| COMP (Pin 5) | Error amplifier output | Drives external R-C network to stabilize loop; 70dB gain and 500μS transconductance enable wide bandwidth tuning. |
| FB (Pin 6) | Output voltage feedback | Compares divider output to 0.8V reference; 10nA input bias minimizes divider current error. |
| CCM/AAM (Pin 7) | Mode selection | Configures operation: float/VCC1 = CCM; SGND-resistor = AAM for >90% light-load efficiency improvement. |
| FREQ (Pin 8) | Frequency set | Resistor-to-SGND sets oscillator frequency (100–1000kHz); also accepts external sync clock on EN/SYNC. |
| PG (Pin 9) | Power good indicator | Open-drain output pulled low if VOUT deviates >±10%; 28μs delay prevents false triggering on transients. |
| ILIM (Pin 10) | Current limit select | Three fixed thresholds: 25mV (SGND), 50mV (VCC1), 75mV (floating)-sets peak inductor current limit. |
| SYNCO (Pin 11) | Synchronization output | 180° out-of-phase clock signal for interleaving second MPQ2908A channel-reduces input/output ripple. |
| SENSE− (Pin 12) | Negative current sense | High-side or low-side current sensing node; common-mode range 0–25V supports various shunt placements. |
| SENSE+ (Pin 13) | Positive current sense | Differential pair with ±0.7V max offset; used with SENSE− to detect inductor current for cycle-by-cycle limiting. |
| PGND (Pin 14) | Power ground | High-current return for VCC1 regulator and bottom gate driver-must connect directly to VCC1 capacitor negative. |
| BG (Pin 15) | Bottom gate driver | Drives synchronous N-MOSFET source; 1Ω pull-down ensures fast turn-off and prevents shoot-through. |
| SW (Pin 16) | Switch node | High di/dt node connecting HS-FET drain, LS-FET source, and BST capacitor-requires minimized loop area. |
| TG (Pin 17) | Top gate driver | Floating driver powered by BST; 2Ω pull-up/1Ω pull-down enables <92ns min TG on-time for high-duty applications. |
| BST (Pin 18) | Bootstrap supply | Charged via external diode from VCC1; supplies TG driver; UVLO at 3.05V ensures reliable HS-FET operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade-1 qualification | Validated for automotive operation from –40°C to +125°C TJ with full reliability testing per stress test plan. |
| Wettable flank QFN-20 package | Enables automated optical inspection (AOI) of solder joints-critical for zero-defect automotive manufacturing. |
| Advanced Asynchronous Modulation (AAM) | Reduces light-load quiescent current to 250–350μA and improves efficiency >15% at 1mA output vs. forced CCM. |
| Dual N-MOSFET gate drivers | Integrated 2Ω/1Ω TG and 3Ω/1Ω BG drivers eliminate need for external drivers-reducing BOM count and layout complexity. |
| Precision 0.8V reference | ±1.5% tolerance over full temperature range ensures ±1.2% output voltage accuracy without calibration. |
| Programmable soft start | External capacitor sets ramp time; internal reset on OCP/OVP faults prevents latch-up during fault recovery. |
Applications
| Engine Control Unit (ECU) Power Supply | ADAS Camera Module Rail |
|---|---|
|
Use Scenario: Regulating 12V battery input to 5V/3.3V for microcontroller, CAN transceiver, and sensor interfaces during cold-crank (4.5V min). IC Role / Device Role / Timing Role: Primary synchronous buck controller managing input dropout, load transients, and EMI-constrained board space. Use Value: 99.5% max duty cycle and low-dropout mode maintain regulation down to 4.5V input; AEC-Q100 compliance ensures functional safety readiness. |
Use Scenario: Generating clean 1.8V/1.2V rails for image signal processor (ISP) and MIPI interface in automotive surround-view cameras. IC Role / Device Role / Timing Role: High-efficiency, low-noise DC/DC controller with external sync capability to avoid interference with pixel clock domain. Use Value: Programmable 100–1000kHz frequency and SYNC input allow EMI spreading; ±1.5% VREF ensures stable ISP core voltage under vibration. |
| Industrial PLC I/O Module | EV Onboard Charger Auxiliary Supply |
|
Use Scenario: Converting 24V/48V field bus to isolated 5V for digital I/O isolators and HART modem in hazardous-area controllers. IC Role / Device Role / Timing Role: Robust HV controller with precision OVP/OCP protecting downstream isolation barriers and communication ICs. Use Value: 65V absolute max VIN and 28V SENSE+/- common-mode range tolerate industrial surge transients; wettable flank enables AOI traceability. |
Use Scenario: Providing 12V bias for gate drivers and 3.3V for MCU in bidirectional OBC auxiliary power stage operating up to 60V DC link. IC Role / Device Role / Timing Role: High-reliability controller handling wide-input variation, thermal cycling, and long-life requirements (>15 years). Use Value: AEC-Q100 Grade-1 rating and 125°C max TJ ensure longevity in thermally constrained OBC enclosures; SYNCO supports multi-phase scaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5143AQDPRRQ1 | 4.5–60V input, dual-channel, integrated high-side FETs (no external MOSFETs required), 500kHz fixed freq | Lower BOM cost but limited to ≤10A output; lacks AAM mode and programmable frequency | Select when integrated FETs simplify design and 10A output suffices; not suitable for >10A or variable-frequency EMI control. |
| MAX20006AATP/V+T | 3.5–65V input, single-channel, AEC-Q100 Grade-1, 2.2MHz max freq, no external sync input | Higher switching frequency reduces inductor size but increases switching loss; no SYNCO for interleaving | Select when ultra-small magnetics are critical and interleaving is unnecessary; verify thermal margin at full load. |
Compared with LM5143AQDPRRQ1 and MAX20006AATP/V+T, MPQ2908AGLE-AEC1-P uniquely combines wettable-flank inspection support, external sync capability, AAM light-load optimization, and flexible current-sense threshold selection-making it optimal for high-reliability, thermally constrained, and EMI-sensitive automotive power designs requiring scalability beyond 10A.
Availability
MPQ2908AGLE-AEC1-P is available at Aetrix Electronics and suitable for automotive ECU power supplies, ADAS camera modules, industrial PLC I/O subsystems, and EV onboard charger auxiliary rails requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle assurance.
Supply support for MPQ2908AGLE-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 over two decades of innovation in DC/DC converters, motor drivers, and LED controllers.
The MPQ2908A product line delivers high-voltage synchronous buck controllers optimized for automotive and industrial applications demanding AEC-Q100 qualification, wide input range, and robust protection-enabling compact, efficient, and reliable power conversion in harsh environments.
FAQ
What is the purpose of the CCM/AAM pin, and how does it affect efficiency?
The CCM/AAM pin selects between continuous conduction mode (CCM) and advanced asynchronous modulation (AAM). When pulled to SGND via resistor, AAM activates-disabling switching at light loads to reduce quiescent current to 250–350μA and improve efficiency by >15% at 1mA output. Floating or tying to VCC1 forces CCM for constant-frequency operation.
How does the MPQ2908AGLE-AEC1-P handle cold-crank conditions below 6V input?
It maintains regulation down to 4V input using low-dropout mode: the high-side FET stays fully on until BST–SW drops below 3.05V, then the low-side FET briefly turns on to recharge BST. This achieves up to 99.5% duty cycle, sustaining output during automotive cold-crank events where battery voltage dips to 4.5V.
Can the MPQ2908AGLE-AEC1-P drive external MOSFETs with different RDS(on) values?
Yes-the dual gate drivers (TG/BG) provide 2Ω/1Ω pull-up and 3Ω/1Ω pull-down strength, supporting N-MOSFETs with RDS(on) from 2mΩ to 50mΩ. Dead time is fixed at 60ns, and minimum on-times (92ns TG, 175ns BG) accommodate fast-switching devices without shoot-through risk.
What is the role of the VCC2 pin, and when should it be used?
VCC2 (4.7–12V) powers the internal VCC1 regulator, bypassing the VIN-based LDO to reduce power dissipation and improve efficiency. It should be used when a clean, efficient auxiliary rail (e.g., from a secondary converter) is available-especially in high-input-voltage or thermally constrained applications.
How does the current sense architecture support accurate over-current protection?
It uses differential SENSE+/SENSE− inputs with three selectable thresholds (25/50/75mV) set by ILIM pin connection. Cycle-by-cycle limiting triggers hiccup mode on sustained over-current, reducing average short-circuit current and thermal stress-critical for automotive fault containment per ISO 26262 ASIL-B readiness.
Is the MPQ2908AGLE-AEC1-P compatible with standard QFN-20 reflow profiles?
Yes-it is rated for JEDEC J-STD-020 moisture sensitivity level 3 and supports standard lead-free reflow profiles (peak 260°C). The wettable flank design allows post-reflow AOI verification of solder fillet integrity-meeting automotive zero-defect assembly requirements.
What protection features are included, and how are they triggered?
It integrates precision OVP (110–120% VFB), OCP (via SENSE+/-), thermal shutdown (170°C), and UVLO (4.5V rising on VIN). OVP enters discharge mode with LS-FET active; OCP initiates hiccup restart; thermal shutdown latches off until cooldown; all protections feature defined hysteresis to prevent chatter.
MPQ2908AGLE-AEC1-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MPQ
- Package/Case:
- 20-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Type:
- Transistor Driver
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Number of Outputs:
- 1
- Output Phases:
- 1
- Voltage - Supply (Vcc/Vdd):
- 4V ~ 60V
- Frequency - Switching:
- 100kHz ~ 1MHz
- Duty Cycle (Max):
- 99.5%
- Synchronous Rectifier:
- Yes
- Clock Sync:
- Yes
- Serial Interfaces:
- -
- Control Features:
- Current Limit, Dead Time Control, Enable, Frequency Control, Power Good, Soft Start, Sync
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 20-QFN (3x4)
MPQ2908AGLE-AEC1-P FAQ
1.How can I place an order for MPQ2908AGLE-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ2908AGLE-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 MPQ2908AGLE-AEC1-P reliable?
The price and inventory of MPQ2908AGLE-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 MPQ2908AGLE-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPQ2908AGLE-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ2908AGLE-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ2908AGLE-AEC1-P?
MPQ2908AGLE-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ2908AGLE-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 MPQ2908AGLE-AEC1-P?
For technical support, including MPQ2908AGLE-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ2908AGLE-AEC1-P requirements.
6.How does Aetrix verify that MPQ2908AGLE-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPQ2908AGLE-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 MPQ2908AGLE-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPQ2908AGLE-AEC1-P?
All MPQ2908AGLE-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ2908AGLE-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 MPQ2908AGLE-AEC1-P part is unused and in its original packaging.
Return procedure for MPQ2908AGLE-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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