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Monolithic Power Systems Inc. MPQ2908AGLE-AEC1-Z
- Part No.:
- MPQ2908AGLE-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
MPQ2908AGLE-AEC1-Z.pdf
- Description:
- 4V-60V INPUT, CURRENT MODE SYNCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,932
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Product details
Overview
MPQ2908AGLE-AEC1-Z from Monolithic Power Systems is a high-voltage, AEC-Q100 Grade-1 qualified, current-mode synchronous step-down controller supporting 4V–60V input, driving dual N-channel MOSFETs, with programmable 100–1000kHz switching frequency and precision 0.8V ±1.5% reference - deployed in automotive power rails requiring cold-crank robustness and OVP/OCP protection.
For engineers reviewing the MPQ2908AGLE-AEC1-Z datasheet, MPQ2908AGLE-AEC1-Z pinout, MPQ2908AGLE-AEC1-Z application, or MPQ2908AGLE-AEC1-Z equivalent, key selection criteria include its wettable-flank QFN-20 (3mm×4mm) package, AAM/CCM mode configurability, 99.5% max duty cycle for low-dropout operation, and dual gate drive capability with 60ns dead time.
Technical Context
The MPQ2908AGLE-AEC1-Z implements peak-current-mode control with slope compensation, cycle-by-cycle current limiting, and asynchronous modulation (AAM) for light-load efficiency optimization. Its error amplifier delivers 70dB DC gain and 500μS transconductance to support stable loop compensation across wide VIN/VOUT ranges.
It integrates dual gate drivers (TG/BG) with 2Ω pull-up/1Ω pull-down on TG and 3Ω/1Ω on BG, supports external sync clock (100–1000kHz), and features 180° out-of-phase SYNCO output for interleaved multi-phase designs. The VCC1 regulator operates from VIN or external VCC2 (4.7–12V), reducing dissipation in high-input automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 60V - enables direct battery-to-load conversion in 12V/24V/48V automotive and industrial systems, including cold-crank (4.5V UVLO rising). |
| Feedback Reference | 0.800V ±1.5% - ensures accurate output regulation over -40°C to +125°C junction temperature, critical for safety-critical automotive rails. |
| Switching Frequency | 100kHz to 1000kHz (programmable via resistor or external sync) - allows EMI tuning and inductor size optimization without sacrificing transient response. |
| Max Duty Cycle | 99.5% - supports ultra-low dropout operation during automotive cranking (e.g., 6VIN → 5VOUT), minimizing voltage headroom loss. |
| Current Sense Threshold | Configurable 25mV / 50mV / 75mV (via ILIM pin) - enables precise overcurrent protection scaling for diverse MOSFET RDS(on) and inductor DCR selections. |
| OVP Threshold | 110–120% of VFB - triggers fast discharge mode (HS-FET off, LS-FET on) to protect downstream loads from overvoltage faults. |
| Thermal Shutdown | 170°C with 20°C hysteresis - provides fail-safe thermal protection while allowing sustained operation up to +125°C ambient in engine bay environments. |
Pinout & Package
MPQ2908AGLE-AEC1-Z is housed in a wettable-flank QFN-20 package (3mm × 4mm, 0.5mm pitch) with exposed thermal pad electrically isolated from SGND/PGND - optimized for automotive reflow inspection and thermal performance in high-power density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 19) | Main input supply connection | Accepts 4–60V; requires local ceramic decoupling to suppress transients during load dump or cold-crank events. |
| EN/SYNC (Pin 20) | Enable input / external clock sync | 1.22V threshold with 130mV hysteresis; doubles as sync input (100–1000kHz) for noise-sensitive multi-rail systems. |
| VCC2 (Pin 1) | External bias supply input | Enables VCC1 sourcing from 4.7–12V external rail (e.g., post-regulated 5V), reducing VIN-related dissipation by >70%. |
| VCC1 (Pin 2) | Internal bias regulator output | 5V ±5% @ 50mA; powers gate drivers and analog circuitry; requires ≥1µF ceramic capacitor to PGND for stability. |
| SGND (Pin 3) | Signal ground reference | Low-noise return for FB, COMP, SS, and sense amplifiers; must be separated from PGND and connected at single point near output caps. |
| SS (Pin 4) | Soft-start timing control | Charged by 4µA internal current source; sets ramp time via external capacitor to prevent output overshoot at startup. |
| COMP (Pin 5) | Error amplifier output | Drives external R-C compensation network; loop stability depends on proper pole/zero placement per output filter design. |
| FB (Pin 6) | Output voltage feedback | Compares divider output against 0.8V reference; 10nA input bias enables high-impedance resistive dividers for low quiescent current. |
| CCM/AAM (Pin 7) | Conduction mode select | Configures CCM (float/VCC1) or AAM (resistor-to-SGND); AAM enables discontinuous operation below ~10% load for >90% light-load efficiency. |
| FREQ (Pin 8) | Frequency programming | Resistor-to-SGND sets fSW; 45.3kΩ yields 430kHz typical - balances EMI, size, and efficiency for 5V/3.3V rails. |
| PG (Pin 9) | Power-good open-drain output | Asserts low when VOUT deviates >±10%; 28µs delay ensures immunity to brief transients; requires external pull-up. |
| ILIM (Pin 10) | Current limit threshold select | Three fixed options: 25mV (SGND), 50mV (VCC1), 75mV (float) - matches common shunt or DCR-based current sensing schemes. |
| SYNCO (Pin 11) | Synchronous clock output | 180° out-of-phase square wave - enables seamless interleaving with second MPQ2908A for reduced input/output ripple and thermal spreading. |
| SENSE+ / SENSE− (Pins 12,13) | Differential current sense inputs | Supports high-side or low-side sensing; common-mode range 0–25V allows placement across MOSFETs or inductor DCR. |
| PGND (Pin 14) | Power ground return | High-current return for VCC1 regulator and bottom gate driver; must connect directly to VCC1 capacitor negative terminal. |
| BG (Pin 15) | Bottom gate driver output | Drives synchronous N-MOSFET source; 1Ω pull-down ensures fast turn-off and prevents shoot-through during dead time. |
| SW (Pin 16) | Switch node | High dv/dt node connecting HS-FET drain, LS-FET source, BST capacitor, and output inductor; requires tight layout and guard ring. |
| TG (Pin 17) | Top gate driver output | Floating driver powered by BST capacitor; 2Ω pull-up enables fast HS-FET turn-on; UVLO (3.05V) prevents weak drive during bootstrap recharge. |
| BST (Pin 18) | Bootstrap supply | Connects to SW via ceramic capacitor (typically 0.1µF); external diode from VCC1 to BST ensures reliable bootstrapping during startup. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade-1 qualification | Validated for operation from −40°C to +125°C junction temperature with full reliability testing - meets automotive functional safety requirements for non-safety-critical power rails. |
| Wettable flank QFN package | Enables automated optical inspection (AOI) of solder joints in production - critical for zero-defect automotive manufacturing and field-reliability assurance. |
| Advanced Asynchronous Modulation (AAM) | Reduces light-load quiescent current to <350μA (VIN-only bias) and improves 10mA-load efficiency by >15% vs. forced CCM - extends battery runtime in always-on modules. |
| Dual gate drive with 60ns dead time | Prevents shoot-through in high-side/low-side N-MOSFET configurations; integrated drivers eliminate need for external level shifters or discrete drivers. |
| Programmable OVP/OCP with hiccup mode | Triggers controlled shutdown and periodic restart during short-circuit - limits average fault current and junction temperature rise without requiring external fault latches. |
| Low-dropout operation (99.5% duty) | Maintains regulation down to VIN = VOUT + 0.2V under heavy load - essential for automotive cold-crank (e.g., 6.5VIN → 5VOUT) without secondary LDO stages. |
Applications
| Automotive Infotainment Power Supply | ADAS Camera Module Rail |
|---|---|
|
Use Scenario: Powers SoC, DDR memory, and display interface in head-unit systems with 12V battery input subject to load dump and cold-crank. IC Role / Device Role / Timing Role: Primary step-down controller regulating 5V/3.3V rails; manages dynamic load steps up to 3A with <50μs transient recovery. Use Value: AAM mode cuts no-load IQ to 250μA, extending ignition-off battery life; 170°C thermal shutdown prevents damage during prolonged high-ambient operation. |
Use Scenario: Supplies clean 1.8V/1.2V rails to image sensor and ISP in rear-view or surround-view cameras mounted near engine compartment. IC Role / Device Role / Timing Role: High-PWM-frequency (600kHz) controller enabling compact 2.2μH inductors; SYNCO pin synchronizes with companion MPQ2908A for dual-sensor power. Use Value: Wettable flank QFN ensures solder joint integrity during thermal cycling; ±1.5% VREF guarantees consistent sensor bias across temperature. |
| Industrial CAN Gateway Power | Commercial Vehicle Telematics Unit |
|
Use Scenario: Generates isolated 5V rail for CAN transceivers and microcontroller in heavy-duty vehicle telematics gateways operating from 24V chassis battery. IC Role / Device Role / Timing Role: Controller driving discrete N-MOSFETs to withstand 80V load dump pulses; OVP protects CAN PHY from bus overvoltage events. Use Value: 60V absolute max VIN rating and 65V input clamp allow direct connection to unfiltered battery; PG output signals MCU when rail is valid. |
Use Scenario: Powers LTE modem, GNSS receiver, and eMMC storage in fleet management units exposed to vibration, wide temperature, and intermittent power. IC Role / Device Role / Timing Role: Dual-rail controller (5V + 3.3V) using interleaved SYNCO outputs to reduce input capacitance and EMI emissions. Use Value: VCC2 bias option lowers total system IQ by routing VCC1 from regulated 5V rail - improving overall efficiency by 3–5% at full load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage synchronous step-down controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5116QPWPRQ1 | Current-mode controller with 6.5–75V input, but lacks AAM mode and wettable flank packaging; uses external VREF (not integrated 0.8V). | Requires external compensation and current-sense amplifier; less suited for space-constrained automotive modules needing AOI. | Choose when higher VIN (>60V) or extended temperature beyond +125°C is required, accepting higher BOM count and lower light-load efficiency. |
| TPS40210DGQR | Voltage-mode controller (4.5–52V), no integrated gate drivers - requires external high-side driver; no AEC-Q100 qualification. | Needs additional components for N-MOSFET drive and fault protection; not approved for automotive production use. | Select only for cost-sensitive industrial prototypes where AEC-Q100 compliance and integrated drivers are unnecessary. |
Compared with LM5116QPWPRQ1 and TPS40210DGQR, MPQ2908AGLE-AEC1-Z delivers superior integration (dual drivers, AAM, wettable flank), tighter reference accuracy (±1.5% vs. ±2%), and automotive-grade reliability - reducing design risk and board area in production vehicles.
Availability
MPQ2908AGLE-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and commercial vehicle telematics requiring stable component supply with AEC-Q100 traceability and long-term lifecycle support.
Supply support for MPQ2908AGLE-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 converters, motor drivers, and LED controllers.
The MPQ2908A product line is designed specifically for automotive and industrial high-input-voltage power conversion, emphasizing AEC-Q100 compliance, thermal robustness, and integration to simplify high-reliability power architecture design.
FAQ
What is the purpose of the CCM/AAM pin, and how does it affect efficiency?
The CCM/AAM pin configures conduction mode: floating or tied to VCC1 enables continuous conduction mode (CCM) for full-load stability, while pulling it low via resistor to SGND activates advanced asynchronous modulation (AAM). AAM disables switching when inductor current reaches zero, reducing switching losses and cutting light-load IQ to 250μA - boosting 10mA-load efficiency by up to 18% versus forced CCM.
Can MPQ2908AGLE-AEC1-Z operate without an external VCC2 supply?
Yes. When VCC2 is unconnected or <4.7V, the internal VCC1 regulator draws power directly from VIN and delivers 5V ±5% to gate drivers and analog circuitry. However, supplying VCC2 with 4.7–12V (e.g., from a downstream 5V rail) reduces VIN-related power dissipation by >70%, lowers thermal stress, and improves overall system efficiency - especially beneficial in high-input automotive applications.
How does the ILIM pin configure current limit thresholds?
The ILIM pin selects one of three fixed current-sense voltage thresholds: 25mV (ILIM = SGND), 50mV (ILIM = VCC1), or 75mV (ILIM = floating). These correspond to peak inductor current limits scaled by external sense resistor or DCR value. For example, with a 5mΩ shunt, 75mV yields 15A limit - enabling precise OCP tuning without trimming resistors or calibration.
What is the function of the SYNCO pin, and how is it used in multi-phase designs?
SYNCO outputs a 180° out-of-phase square wave synchronized to the internal oscillator. In dual-MPQ2908A interleaved configurations, connecting SYNCO of Master to EN/SYNC of Slave achieves precise phase offset, halving input/output ripple current and distributing thermal load across both controllers - critical for high-current automotive rails exceeding 10A.
Does MPQ2908AGLE-AEC1-Z support external synchronization, and what is its frequency range?
Yes. The EN/SYNC pin accepts external clock signals from 100kHz to 1000kHz, overriding the internal oscillator. This enables EMI reduction through spread-spectrum alignment, noise-sensitive system coordination (e.g., with image sensors or RF modules), and deterministic timing in synchronized multi-rail power architectures - all while maintaining full protection functionality.
How is soft-start time calculated, and what capacitor value yields a 10ms ramp?
Soft-start time tSS (ms) = (CSS × 0.8V) / 4μA, where CSS is in nF. To achieve 10ms, solve: CSS = (10 × 4) / 0.8 = 50nF. A standard 47nF capacitor yields ~9.4ms, ensuring monotonic VOUT rise without overshoot during cold-start or reset conditions.
What protection features are integrated, and how do they respond to faults?
Integrated protections include output over-voltage (OVP), over-current (OCP), thermal shutdown (170°C), and bootstrap UVLO. OVP triggers immediate discharge mode (LS-FET on, HS-FET off); OCP enters hiccup mode with periodic restart; thermal shutdown holds until junction cools 20°C. All responses are autonomous - no external circuitry required for basic fault containment.
MPQ2908AGLE-AEC1-Z 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-Z FAQ
1.How can I place an order for MPQ2908AGLE-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ2908AGLE-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 MPQ2908AGLE-AEC1-Z reliable?
The price and inventory of MPQ2908AGLE-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 MPQ2908AGLE-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ2908AGLE-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ2908AGLE-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ2908AGLE-AEC1-Z?
MPQ2908AGLE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ2908AGLE-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 MPQ2908AGLE-AEC1-Z?
For technical support, including MPQ2908AGLE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ2908AGLE-AEC1-Z requirements.
6.How does Aetrix verify that MPQ2908AGLE-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ2908AGLE-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 MPQ2908AGLE-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ2908AGLE-AEC1-Z?
All MPQ2908AGLE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ2908AGLE-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 MPQ2908AGLE-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ2908AGLE-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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