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Monolithic Power Systems Inc. MPQ8875AGVE-0000-AEC1-Z
- Part No.:
- MPQ8875AGVE-0000-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 34-PowerVQFN
- Datasheet:
-
MPQ8875AGVE-0000-AEC1-Z.pdf
- Description:
- IC REG BUCK BOOST ADJ 5A 34QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,797
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Product details
Overview
MPQ8875AGVE-0000-AEC1-Z from Monolithic Power Systems is a 36V, 5A, AEC-Q100 qualified, four-switch synchronous buck-boost DC/DC converter with I²C programmability, constant-on-time (COT) control, and seamless buck/boost/buck-boost mode transitions. It delivers up to 5A continuous output current with 2.2V–36V input range and integrated 10mΩ/25mΩ MOSFETs, targeting automotive cold-crank and load-dump conditions in ADAS domain controllers and infotainment power stages.
For engineers reviewing the MPQ8875AGVE-0000-AEC1-Z datasheet, MPQ8875AGVE-0000-AEC1-Z pinout, MPQ8875AGVE-0000-AEC1-Z application, or MPQ8875AGVE-0000-AEC1-Z equivalent, key selection criteria include I²C-configurable switching frequency (200kHz–1MHz), spread-spectrum EMI reduction, thermal shutdown, output power-good signaling, and AEC-Q100 Grade 1 qualification for under-hood operation.
Technical Context
The MPQ8875AGVE-0000-AEC1-Z implements a monolithic four-switch buck-boost topology with proprietary COT control, enabling automatic, glitch-free transitions between buck (VIN > VOUT), boost (VIN < VOUT), and buck-boost (VIN ≈ VOUT) modes without external mode-select logic. Its internal gate drivers support 100% duty cycle in buck mode and 0% in boost mode.
I²C interface provides real-time readback of output voltage, temperature, fault status, and configurable parameters including UVLO threshold (adjustable down to 2.2V), OVP level (14.5V/16.5V/18.5V), and spread-spectrum modulation depth (0.25%/0.5%/1%). All protections - cycle-by-cycle current limiting, output SCP, input OVP, and thermal shutdown - are hardware-based and independent of firmware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.2V to 36V - supports full automotive battery transient range including cold crank (down to 2.2V) and load dump (up to 36V). |
| Output Current | 5A continuous - enables single-chip power stage for ADAS domain controllers or display backlight drivers without external current sharing. |
| Switching Frequency | 200kHz to 1MHz (configurable) or 250kHz to 1MHz (synchronizable) - allows EMI optimization and inductor size trade-off across vehicle platforms. |
| Quiescent Current | 180μA at VIN = 12V - meets automotive always-on requirements for gateway or camera ECU standby power budgets. |
| Shutdown Current | <25μA - ensures negligible battery drain during vehicle sleep mode over extended parking periods. |
| Protection Features | Hardware-enforced UVLO, input OVP, output OVP, SCP, thermal shutdown, and cycle-by-cycle current limit - eliminates need for external supervision ICs. |
| AEC-Q100 Grade | Grade 1 (−40°C to +125°C ambient) - qualified for under-hood placement in engine control modules and radar power supplies. |
Pinout & Package
The MPQ8875AGVE-0000-AEC1-Z is housed in a thermally enhanced QFN-34 package (4mm × 5mm, 0.5mm pitch) with exposed thermal pad (EP) on underside for PCB-level heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply rail | Accepts 2.2V–36V; connects to bulk capacitor and feeds all internal power switches. |
| VOUT | Regulated output node | Delivers up to 5A; connects directly to output filter and load; monitored by internal OVP and PG circuits. |
| PG | Power good open-drain output | Asserts high when VOUT is within ±5% regulation window; used for system power sequencing and fault indication. |
| SCL / SDA | I²C serial interface | Supports standard/fast-mode I²C (100kHz/400kHz); enables dynamic configuration without hardware changes. |
| EN | Enable input | Active-high logic input; controls device startup/shutdown and integrates with vehicle ignition signal. |
| SS | Spread spectrum enable | Active-high pin that activates frequency dithering to reduce peak EMI emissions by spreading energy across bandwidth. |
| EP | Exposed thermal pad | Must be soldered to large copper pour for thermal conduction; critical for maintaining junction temperature ≤125°C at 5A load. |
Key Features
| Feature | Design Value |
|---|---|
| Four-switch synchronous architecture | Eliminates external diodes and reduces conduction loss; enables bidirectional voltage conversion with >95% peak efficiency at 12V→12V. |
| Configurable COT control | Enables fast transient response (<10μs recovery time) and stable operation across wide VIN/VOUT ratios without loop compensation redesign. |
| I²C programmability | Allows runtime adjustment of output voltage (0.6V–18V), switching frequency, protection thresholds, and soft-start ramp rate - no BOM change required. |
| Integrated MOSFETs | 10mΩ buck HS + 25mΩ buck LS + 10mΩ boost LS + 25mΩ boost HS - achieves 5A output in 4mm×5mm footprint without external FETs or drivers. |
| Automotive-grade protection suite | Hardware-based fault responses (e.g., immediate latch-off on SCP, auto-retry on thermal fault) meet ISO 26262 ASIL-B functional safety readiness. |
Applications
| ADAS Domain Controller Power Stage | Rearview Camera Off-Battery Supply |
|---|---|
|
Use Scenario: Powers multi-core SoC, ISP, and memory in centralized ADAS domain controller requiring stable 5V/3.3V rails during cold crank (4.5V battery) and load dump (36V). IC Role / Device Role / Timing Role: Primary buck-boost regulator delivering regulated 5V at 4A with seamless mode transition as battery voltage crosses 5V during engine start. Use Value: Eliminates need for pre-regulator + LDO cascade; maintains SoC operation through 2.2V–36V transients without brownout or reset. |
Use Scenario: Supplies 3.3V/2A to rearview camera module directly from vehicle battery, operating continuously during reverse gear activation even at low battery state. IC Role / Device Role / Timing Role: Standby-optimized buck-boost converter enabling instant camera wake-up from <25μA shutdown current and <100μs startup delay. Use Value: Meets OEM requirement for sub-100ms camera activation time while surviving 2.2V cold crank and 36V load dump without external TVS. |
| Instrument Cluster Display Backlight | USB-C PD Companion Rail |
|
Use Scenario: Generates adjustable 12V–24V backlight supply for TFT LCD cluster with dimming control via I²C, supporting variable brightness across day/night modes. IC Role / Device Role / Timing Role: Programmable buck-boost LED driver front-end providing constant-voltage rail to external LED driver IC. Use Value: Enables single-rail solution for 12V/24V vehicle architectures; I²C voltage tuning avoids separate BOM variants for different OEM platforms. |
Use Scenario: Provides clean, low-noise 5V/3A auxiliary rail for USB-C PD controller and Type-C port logic in infotainment head unit. IC Role / Device Role / Timing Role: Secondary regulated supply decoupled from main 12V bus; uses spread spectrum to meet CISPR 25 Class 5 conducted EMI limits near sensitive RF receivers. Use Value: Reduces need for ferrite beads and shielding; passes EMI testing without layout rework across multiple vehicle models. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar four-switch buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ8878-AEC1 | 10A output rating, ZDP™ zero-delay propagation timing, fixed 500kHz fSW (no I²C frequency config) | Targeted at higher-power ADAS radar modules requiring >6A; lacks programmable spread spectrum | Select when output current >5A is required and fixed-frequency operation is acceptable. |
| MPQ8837-AEC1 | 8A rating, integrated CC/CV charging algorithm, I²C-controlled constant-current mode | Designed for battery-powered subsystems (e.g., driver monitoring cameras) needing charge management | Select only if constant-current regulation for Li-ion/LiPo backup is required; not suitable for pure fixed-VOUT applications. |
Compared with MPQ8875AGVE-0000-AEC1-Z, MPQ8878-AEC1 offers higher current but less flexibility in EMI tuning, while MPQ8837-AEC1 adds battery charging logic at the cost of complexity for non-battery applications - making MPQ8875A the optimal balance of programmability, automotive robustness, and 5A capability.
Availability
MPQ8875AGVE-0000-AEC1-Z is available at Aetrix Electronics and suitable for ADAS domain controllers, rearview camera systems, instrument cluster displays, and USB-C PD companion rails requiring stable component supply across automotive production lifecycles.
Supply support for MPQ8875AGVE-0000-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 for automotive, industrial, cloud computing, and consumer markets, with design centers in the US, China, and Taiwan.
The MPQ8875A product line delivers AEC-Q100 qualified, I²C-programmable buck-boost converters optimized for automotive power domains where input voltage varies widely - specifically engineered for ADAS, infotainment, and body electronics requiring seamless transient handling and minimal external components.
FAQ
What is the default I²C address of MPQ8875AGVE-0000-AEC1-Z?
The default I²C slave address is 0x60 (7-bit format), with write address 0xC0 and read address 0xC1. This address is hard-coded and cannot be changed via pins or registers. The device supports standard-mode (100kHz) and fast-mode (400kHz) I²C communication without clock stretching.
Does MPQ8875AGVE-0000-AEC1-Z support forced PWM mode?
No - the MPQ8875AGVE-0000-AEC1-Z operates exclusively in constant-on-time (COT) mode and does not offer forced PWM or discontinuous conduction mode (DCM) selection. COT ensures optimal light-load efficiency and fast transient response without requiring external compensation components.
Can the output voltage be adjusted dynamically during operation?
Yes - the output voltage can be updated in real time via I²C register writes to the VOUT_COMMAND register (address 0x22). Changes take effect within one switching cycle, enabling adaptive rail scaling for SoC DVFS or display brightness control without power interruption.
What thermal derating applies above 85°C ambient?
At ambient temperatures above 85°C, output current must be linearly derated from 5A at 85°C to 0A at 125°C ambient, assuming 2-layer PCB with 2-in² 2oz copper thermal pad connected to EP. Full 5A operation requires ≤70°C ambient with recommended layout per AN175.
Is spread-spectrum modulation enabled by default at power-up?
No - spread-spectrum modulation is disabled by default after power-on reset. It must be explicitly enabled via I²C bit SS_EN (bit 7 of register 0x10) or by asserting the SS pin high. Default operation uses fixed-frequency switching for predictable EMI baseline.
How is power-good (PG) assertion threshold calibrated?
The PG pin asserts high when VOUT reaches 95% of the programmed output voltage and remains within ±5% regulation window. Thresholds are trimmed during factory test and do not require user calibration; tolerance is guaranteed at ±1.5% over temperature and line.
Does MPQ8875AGVE-0000-AEC1-Z support output current monitoring?
No - the device does not provide analog current sense output or I²C-readable current register. Output current must be inferred from load behavior or measured externally using a shunt resistor and external ADC.
MPQ8875AGVE-0000-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MPQ
- Package/Case:
- 34-PowerVQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.2V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 30V
- Current - Output:
- 5A
- Frequency - Switching:
- 200kHz ~ 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 34-QFN (4x5)
MPQ8875AGVE-0000-AEC1-Z FAQ
1.How can I place an order for MPQ8875AGVE-0000-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ8875AGVE-0000-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 MPQ8875AGVE-0000-AEC1-Z reliable?
The price and inventory of MPQ8875AGVE-0000-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 MPQ8875AGVE-0000-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ8875AGVE-0000-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ8875AGVE-0000-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ8875AGVE-0000-AEC1-Z?
MPQ8875AGVE-0000-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ8875AGVE-0000-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 MPQ8875AGVE-0000-AEC1-Z?
For technical support, including MPQ8875AGVE-0000-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ8875AGVE-0000-AEC1-Z requirements.
6.How does Aetrix verify that MPQ8875AGVE-0000-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ8875AGVE-0000-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 MPQ8875AGVE-0000-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ8875AGVE-0000-AEC1-Z?
All MPQ8875AGVE-0000-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ8875AGVE-0000-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 MPQ8875AGVE-0000-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ8875AGVE-0000-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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