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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Monolithic Power Systems Inc. MPQ8875AGVE-AEC1-Z

Name: MPQ8875AGVE-AEC1-Z
Brand: Monolithic Power Systems Inc.
SKU: MPQ8875AGVE-AEC1-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPQ8875AGVE-AEC1-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 34-PowerVQFN

Datasheet:: MPQ8875AGVE-AEC1-Z.pdf

Description:: IC REG BUCK BOOST ADJ 5A 34QFN

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Product details

Overview

MPQ8875AGVE-AEC1-Z from Monolithic Power Systems is a 36V, 5A, AEC-Q100 qualified, four-switch synchronous buck-boost DC/DC converter with I²C interface, constant-on-time control, and integrated 10mΩ/25mΩ MOSFETs. It operates across 2.2V–36V input, delivers regulated output under cold-crank (4.5V) and load-dump (42V) transients, and supports seamless buck/boost/buck-boost mode transitions in automotive ADAS power stages.

For engineers reviewing the MPQ8875AGVE-AEC1-Z datasheet, MPQ8875AGVE-AEC1-Z pinout, MPQ8875AGVE-AEC1-Z application, or MPQ8875AGVE-AEC1-Z equivalent, key selection criteria include its I²C-configurable switching frequency (200kHz–1MHz), spread-spectrum EMI reduction, power-good signaling, and fault protections covering UVLO, OVP, SCP, and thermal shutdown.

Technical Context

The MPQ8875AGVE-AEC1-Z implements proprietary constant-on-time (COT) control to enable zero-crossing transitions between buck and boost modes without output voltage dip or overshoot. Its fully integrated quad-switch topology eliminates external MOSFETs and gate drivers while maintaining independent high-side and low-side FETs for both buck and boost paths.

Control is executed via standard I²C (up to 1MHz clock), supporting real-time adjustment of output voltage, switching frequency, soft-start time, and protection thresholds. The device includes a dedicated power-good (PG) open-drain output and internal 2ms soft-start with configurable ramp rate.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.2V to 36V - supports full automotive battery range including cold-crank (≥4.5V) and post-crank recovery without dropout.
Continuous Output Current	5A - sustained delivery at 12V_IN/12V_OUT with <15°C temperature rise on 2-layer PCB.
Switching Frequency	Configurable 200kHz–1MHz or syncable 250kHz–1MHz - enables layout optimization for efficiency vs. EMI trade-offs.
FSS Modulation Depth	±6% frequency dither - reduces peak EMI by >10dB in 150kHz–108MHz band without compromising regulation.
Quiescent Current	180μA at V_IN = 12V - meets automotive standby power requirements for always-on domains.
Shutdown Current	<25μA - enables ultra-low-power sleep mode during vehicle ignition-off state.
Thermal Shutdown Threshold	150°C with 20°C hysteresis - protects silicon integrity during sustained overload or poor heatsinking.

Pinout & Package

MPQ8875AGVE-AEC1-Z is housed in a thermally enhanced QFN-34 package (4mm × 5mm, 0.5mm pitch) with exposed thermal pad (EP) connected to PGND for optimal heat dissipation in automotive under-hood environments.

Pin/Terminal	Circuit Role	Design Meaning
VIN	Main input supply rail	Accepts 2.2V–36V; connects to bulk capacitor and front-end transient protection.
VOUT	Regulated output node	Delivers up to 5A; requires low-ESR ceramic output capacitors and LC filter for stability.
PGND	Power ground reference	High-current return path for all internal MOSFETs; must be tied directly to EP and system GND plane.
AGND	Analog ground reference	Isolated low-noise reference for feedback, I²C, and PG; star-connected to PGND at single point.
SCL / SDA	I²C serial interface	Supports standard/fast-mode I²C (100kHz/400kHz); pull-up required to 3.3V domain.
EN	Enable control input	Active-high logic; internal 1.2V threshold with hysteresis for noise immunity in automotive harnesses.
PG	Power-good indicator	Open-drain output asserted low when VOUT is within ±5% regulation window; drives LED or MCU interrupt.
RT	Frequency setting resistor	Connects to GND to set fSW; 100kΩ yields ~500kHz; unused when synchronized externally.

Key Features

Feature	Design Value
Four-switch synchronous topology	Eliminates need for external MOSFETs and drivers; integrates 10mΩ buck HS, 25mΩ buck LS, 10mΩ boost LS, and 25mΩ boost HS FETs.
Constant-on-time (COT) control	Enables sub-10μs transient response and seamless mode transitions without external compensation components.
I²C programmability	Configures VOUT (0.8V–20V), fSW, soft-start, UVLO/OVP thresholds, and fault response - no BOM changes required.
Spread-spectrum modulation	Reduces conducted and radiated EMI peaks by spreading energy across 120kHz bandwidth without affecting regulation accuracy.
Automotive-grade protection suite	Includes cycle-by-cycle current limit, input OVP (42V), output OVP (22V), SCP, thermal shutdown, and PG monitoring.

Applications

ADAS Domain Control Module

Rearview Camera Power Supply

Use Scenario: Centralized power stage supplying 5V/3.3V rails to radar SoCs, camera ISPs, and CAN/LIN transceivers in Zonal E/E architectures.

IC Role / Device Role / Timing Role: Primary buck-boost regulator delivering stable 5V@3A from 6V–16V battery with cold-crank hold-up capability.

Use Value: Maintains uninterrupted operation during engine start (4.5V min) and recovers within 100μs after load dump transients.

Use Scenario: Powering 12V-rated rearview camera modules directly from vehicle battery without intermediate LDOs or discrete converters.

IC Role / Device Role / Timing Role: Single-stage 12V output regulator accepting 6V–18V input; provides reverse-polarity and surge protection.

Use Value: Eliminates need for external TVS and pre-regulator stages, reducing BOM count by 4 components and PCB area by 35%.

Instrument Cluster Backlight Driver

USB-C PD Auxiliary Rail

Use Scenario: Generating 24V backlight supply for TFT LCD clusters requiring precise dimming control and fast transient response.

IC Role / Device Role / Timing Role: Boost-mode configured buck-boost delivering [email protected] with I²C-adjustable output and soft-start ramp control.

Use Value: Enables flicker-free brightness transitions during ignition-on/off sequences with <50μs regulation recovery.

Use Scenario: Providing isolated 9V/15V auxiliary rails for USB-C PD controller ICs and level-shifters in infotainment head units.

IC Role / Device Role / Timing Role: Programmable buck-boost generating 9V@1A from 7V–14V input; synchronized to system clock to minimize beat frequencies.

Use Value: Reduces EMI coupling into high-speed USB 3.1 data lines by aligning switching edges with system timing boundaries.

Equivalent & Alternatives

The following parts are listed as comparable options for similar buck-boost converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPQ8878-AEC1	10A output rating; adds Zero-Dropout (ZDP) mode for 100% duty cycle; larger QFN-40 package	Better suited for high-current ADAS ECUs (e.g., front-facing camera + radar fusion units)	Select when >5A continuous load or 100% duty-cycle operation under low-VIN conditions is required.
MPQ8837-AEC1	8A rating; adds CC/CV charging profile support; identical QFN-34 footprint	Targeted at battery-backed systems (e.g., telematics black boxes with supercap backup)	Select when constant-current charging or dual-rail sequencing (VOUT1/VOUT2) is needed alongside buck-boost regulation.

Compared with MPQ8875AGVE-AEC1-Z, MPQ8878-AEC1 offers higher current and ZDP mode at the cost of larger size and higher quiescent current, while MPQ8837-AEC1 adds CC/CV functionality but lacks spread-spectrum EMI control - making MPQ8875AGVE-AEC1-Z optimal for cost-sensitive, EMI-critical ADAS camera and cluster supplies.

Availability

MPQ8875AGVE-AEC1-Z is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, rearview/front-facing camera modules, instrument cluster backlighting, and USB-C PD auxiliary rails requiring stable component supply, AEC-Q100 qualification, and production-ready traceability.

Supply support for MPQ8875AGVE-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 targets AEC-Q100 Grade 1 automotive power conversion needs - specifically addressing dynamic input transients, compact form factor demands, and digital configurability in next-generation zonal E/E architectures.

FAQ

What is the default I²C address of MPQ8875AGVE-AEC1-Z?

The default I²C slave address is 0x60 (7-bit format), with write address 0xC0 and read address 0xC1. This address is fixed and not user-programmable; multiple devices require hardware address selection via external resistors on ADDR pins, which this variant does not support.

Does MPQ8875AGVE-AEC1-Z support forced PWM mode?

No - MPQ8875AGVE-AEC1-Z operates exclusively in COT mode and does not offer forced PWM or discontinuous conduction mode (DCM) selection. Its light-load efficiency is maintained via pulse-frequency modulation (PFM) behavior inherent to COT architecture, with no audible switching noise.

Can the power-good (PG) signal drive an MCU GPIO directly?

Yes - PG is an open-drain output rated for 6V maximum and 5mA sink current. It can directly interface with 3.3V or 5V MCU GPIOs using a pull-up resistor (typically 10kΩ to VCC_IO); no level-shifting circuitry is required for standard microcontrollers.

What is the minimum output voltage achievable with MPQ8875AGVE-AEC1-Z?

The minimum regulated output voltage is 0.8V, set by the internal 0.8V reference and adjustable via I²C register writes. Output voltages below 0.8V are not supported due to feedback amplifier limitations and cannot be achieved even with external resistor dividers.

Is thermal pad (EP) connection mandatory for operation?

Yes - the exposed thermal pad must be soldered to a solid PGND copper pour with ≥6 thermal vias (0.3mm diameter) to inner ground planes. Omitting EP connection causes junction temperature to exceed 150°C at 3A load, triggering thermal shutdown and violating AEC-Q100 reliability requirements.

How is input over-voltage protection (OVP) triggered and reset?

OVP activates at 42V (typical) on VIN and latches off the converter until EN is cycled low for >1ms. The OVP threshold is fixed and non-adjustable; it resets automatically only upon power cycle or intentional enable pin toggling - no I²C command can clear the fault.

Does MPQ8875AGVE-AEC1-Z support output current monitoring?

No - the device does not integrate current-sense amplifiers or analog current monitor outputs. Output current must be measured externally using a shunt resistor and separate ADC or current-sense amplifier; I²C registers provide only voltage, frequency, and status flags.

MPQ8875AGVE-AEC1-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: MPQ

Package/Case:: 34-PowerVQFN

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

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-AEC1-Z FAQ

1.How can I place an order for MPQ8875AGVE-AEC1-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MPQ8875AGVE-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-AEC1-Z reliable?

The price and inventory of MPQ8875AGVE-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-AEC1-Z is usually 5 days.

3.What payment methods are accepted for MPQ8875AGVE-AEC1-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ8875AGVE-AEC1-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ8875AGVE-AEC1-Z?

MPQ8875AGVE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPQ8875AGVE-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-AEC1-Z?

For technical support, including MPQ8875AGVE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ8875AGVE-AEC1-Z requirements.

6.How does Aetrix verify that MPQ8875AGVE-AEC1-Z is sourced from the original manufacturer or authorized distributors?

All MPQ8875AGVE-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-AEC1-Z meets industry standards.

7.What is the process for return or replacement of MPQ8875AGVE-AEC1-Z?

All MPQ8875AGVE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ8875AGVE-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-AEC1-Z part is unused and in its original packaging.

Return procedure for MPQ8875AGVE-AEC1-Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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