- MPQ8874-AEC1
MPQ8874-AEC1
36V, 4A, Four-Switch, Synchronous Buck-Boost Converter with I2C Interface, AEC-Q100 Qualified
Session textval
Session Titefor popup
Description
The MPQ8874-AEC1 is a 36V, monolithic, synchronous buck-boost DC/DC converter. The wide 2.2V to 36V input voltage (VIN) range makes this device well-suited for multi-purpose automotive and industrial applications. The proprietary constant-on-time (COT) control, as well as the fully integrated, four-switch configuration, allow the chip to flexibly change the converter topology between buck, boost, and buck-boost mode. This optimizes performance and efficiency with input voltages that are above, below, or equal to the output voltage (VOUT). It also ensures seamless transitions between the adjacent operational regions.
The MPQ8874-AEC1 is controlled separately via a standard I2C interface. The various parameters can be adjusted by writing the settings to the device without any hardware changes required.
The switching frequency (fSW) can be configured between 200kHz and 2.2MHz, or it can be synchronized between 250kHz and 2.2MHz via an external clock signal. In addition, the configurable frequency spread spectrum (FSS) function can dither fSW periodically for improved EMI performance.
Robust fault protections include input under-voltage lockout (UVLO), input over-voltage protection (OVP), cycle-by-cycle peak current limiting, output OVP, output short-circuit protection (SCP), and thermal shutdown. The built-in power good function (PG) can indicate whether the VOUT is regulated properly.
The MPQ8874-AEC1 is available in a thermally enhanced QFN-22 (4mmx5mm) package. It is available in AEC-Q100 Grade 1.
-
Show more
Show less
Features & Benefits
- Designed to Handle Automotive Transients:
- 4V to 36V Wide Input Voltage (VIN) Range
- Load Dump Up to 42V
- Cold Crank Down to 2.2V
- Single-Channel, Four-Switch, Synchronous Buck-Boost Configuration:
- Internal Buck High-Side Power MOSFET (HS-FET)
- Internal Buck Low-Side Synchronous Rectifier (SR)
- Internal Boost Low-Side Power MOSFET (LS-FET)
- Internal Boost High-Side SR
- Proprietary Constant-On-Time (COT) Control for Seamless Transitions
- Up to 4A of Continuous Output Current (IOUT) in Buck
- Extends Vehicle Battery Life:
- 1μA Shutdown Current
- 20μA Quiescent Current (IQ)
- Easy-to-Optimize Efficiency and EMI Performance:
- Configurable 200kHz to 2.2MHz Switching Frequency (fSW)
- Synchronizable fSW from 250kHz to 2.2MHz
- Switching Frequency Spread Spectrum (FSS)
- Configurable Switching Speed
- Reduced Board Size and BOM:
- Integrated Compensation Network
- Fixed Output Voltage (VOUT) Options
- Rich Protections and Diagnostics:
- Configurable Input Under-Voltage Lockout (UVLO)
- Cycle-by-Cycle Current Limiting
- Over-Current Protection (OCP)
- Output Over-Voltage Protection (OVP)
- Input OVP
- Output Under-Voltage Protection (UVP)
- Over-Temperature Shutdown
- Power Good (PG) Indication
- Application Flexibility with I2C Interface:
- 1Mbps I2C Interface with Packet Error Checking (PEC)
- Configurable Parameters:
- Converter On/Off
- Input Range Selection
- Output Range from 1V to 30V
- fSW
- Synchronized Input/Output Selection
- Switching Slew Rate
- FSS Setting
- Compensation Network
- Soft-Start Time (tSS)
- Dynamic VOUT Adjustment with Slew Rate Control
- Converter Mode Transition Threshold
- Discontinuous Conduction Mode (DCM) or Forced Continuous Conduction Mode (FCCM)
- Protection Thresholds
- Fault Behaviors
- PG Threshold
- Additional Features:
- One-Time Programmable (OTP) Memory for Default Parameter Setting
- Available in a QFN-22 (4mmx5mm) Package
- Available with Wettable Flanks
- Available in AEC-Q100 Grade 1

Active Part Numbers:
MPQ8874GVE-xxxx-AEC1-Z MPQ8874GVE-xxxx-AEC1-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MPQ8874-AEC1 Resources
-
PRODUCT CATEGORY
STEP-DOWN/STEP-UP (BUCK-BOOST) CONVERTERS AND CONTROLLERSPRODUCT CATEGORY -
APPLICATION
CENTRAL GATEWAYSAPPLICATIONAs vehicles continue to integrate electronic control unit (ECU) networks for cutting-edge functionality, the automotive central gateway controller plays a central role in bridging and managing the transfer of data across various protocols (e.g. CAN, FlexRay, LIN, Ethernet, and ISO-9141). The central gateway achieves physical isolation between ECU networks, as well as portability between protocols ...
-
APPLICATION
DISPLAY (NAVIGATION, HEADS-UP, CLUSTER)APPLICATIONAutomotive displays — which include the center display, heads-up display (HUD), and gauge instrument cluster — show key information and interactive content to the driver. The center information display is connected to the head unit, and provides navigation and other in-cabin infotainment controls. The automotive HUD and gauge instrument cluster provide easy-to-access information for the driver. Th...
-
APPLICATION
INFOTAINMENT SYSTEMSAPPLICATIONAutomotive in-vehicle infotainment systems are becoming increasingly software-driven to enhance safety and security, as well as the overall driving experience. Modern cars integrate driving and environmental information, passenger entertainment, wireless connections, and navigation into a centralized infotainment system architecture. However, with the rise of sophisticated in-vehicle infotainment ...
-
APPLICATION
REARVIEW CAMERAS (OFF BATTERY)APPLICATIONRearview cameras are perhaps the most well-known camera subsystem used in advanced driver assistance systems (ADAS) applications. As this feature is being offered and expected in more and more vehicles, these camera systems must offer high integration and fast data processing to enable accurate, real-time monitoring of possible hazards behind the vehicle and channeling information directly to an L...
-
APPLICATION
WIRELESS CHARGINGAPPLICATIONWireless in-car charging is becoming an increasingly popular feature in new vehicle models. The ability to charge a smartphone or other portable device by simply placing it in a designated area, such as a center console tray — without having to physically connect the device or plug it in — offers a world of convenience for consumers. Charging has become an expected standard in most car models, and...
-
APPLICATION
DRIVER MONITORING SYSTEMSAPPLICATIONDriver monitoring systems are one of the latest developments in automotive safety technology. As part of a holistic human-machine interface (HMI), driver monitoring systems track vital sign parameters and driver attentiveness, so that in the event that the driver is unable to operate the vehicle, assistance can be provided. Of course, advanced new features add design complexity and additional cons...
-
APPLICATION
SENSOR FUSION DOMAIN CONTROLLERSAPPLICATIONPerception-sensing systems have become a popular ADAS offering in new vehicles, and will continue to expand as new cars integrate radar with cameras and even LIDAR systems. However, each of these sensors has strengths and limitation — thats where sensor fusion comes in. By combining the inputs from all of the cars perception-sensing systems, the driver is provided with the best possible informatio...
-
PRODUCT
MPQ8872-AEC1PRODUCT36V, 2A, Four-Switch, Synchronous Buck-Boost Converter with I2C Interface, AEC-Q100 Qualified
-
PRODUCT
MPQ4208-AEC1PRODUCT80V, Synchronous Buck-Boost Controller with I2C And Adjustable OCP and PG Indication, AEC-Q100 Qualified
-
PRODUCT
MPQ8835A-AEC1PRODUCT36V, 6A, Four-Switch, Synchronous Buck-Boost Converter with I2C Interface, AEC-Q100 Qualified
-
PRODUCT
MPQ4232-AEC1PRODUCT6A Buck-Boost Converter with Four Integrated MOSFETs and I2C Interface, AEC-Q100 Qualified
-
PRODUCT
MPQ4263-AEC1PRODUCT36V, 140W Buck-Boost with Integrated LS-FETs, Supports High-Side Current Sense and I2C Interface for Automotive, AEC-Q100 Qualified
-
PRODUCT
MPQ4262-AEC1PRODUCT36V, 100W, Buck-Boost Converter with Integrated Low-Side MOSFETS and an I2C Interface for Automotive, AEC-Q100 Qualified
-
PRODUCT
MPQ8873-AEC1PRODUCT36V, 3A Continuous Output Current, Full Temperature, Four-Switch, Synchronous Buck-Boost Converter, AEC-Q100 Qualified
-
PRODUCT
MPQ4214-AEC1PRODUCT40V, Synchronous Buck-Boost Controller with Digital Interface and Adjustable OCP via IPWM, AEC-Q100 Qualified
-
PRODUCT
MPQ8875A-AEC1PRODUCT36V, 5A, Four-Switch, Synchronous Buck-Boost Converter with I2C Interface AEC-Q100 Qualified
-
PRODUCT
MPQ4210PRODUCT40V, 100W Synchronous Buck-Boost Controller with I2C and Current Monitor, AEC-Q100 Qualified
-
ARTICLE
CHOOSING THE PROPER PARAMETERS IN FREQUENCY SPREAD SPECTRUM (FSS) DESIGNARTICLEThe frequency spread spectrum (FSS) technique has been widely applied in power converters to reduce electromagnetic interference (EMI) noise. However, in practice, there are multiple parameters in FSS design that must be considered to optimize EMI performance with minimal side effects. This article introduces FSS parameters such as modulation shape, frequency, and depth, and analyzes their impact ...
-
PRODUCT
MPQ4233A-AEC1PRODUCT36V, 3A, Buck-Boost Converter with Four Integrated MOSFETs and I2C Interface, AEC-Q100 Qualified
-
PRODUCT
MPQ4232A-AEC1PRODUCT36V, 6A Buck-Boost Converter with Four Integrated MOSFETs and I2C Interface, AEC-Q100 Qualified
-
PRODUCT
MPQ4233-AEC1PRODUCT36V Tolerant, 3A Buck-Boost Converter with Four Integrated MOSFETs and I2C Interface, AEC-Q100 Qualified
-
ARTICLE
DESIGN CONSIDERATIONS TO SUSTAIN AUTOMOTIVE CRANK CONDITIONSARTICLEModern vehicles using 12V battery systems are subjected to a number of transient conditions. Some transients involve high-voltage pulses, while others may be under low-voltage conditions. Crank transients are low-voltage conditions that occur when a car engine starts, and the car battery drops several volts below its normal operating range for a brief time. The requirements to maintain normal veh...
-
PRODUCT
MPQ8880A-AEC1PRODUCT60V, 4.5A, High-Efficiency, Digital, Configurable, Synchronous Step-Down Converter with PMBus Interface, AEC-Q100 Qualified
-
PRODUCT
MPQ7932-AEC1PRODUCTMPSafeTM-Compatible, 5.5V PMIC with 6 Buck Converters, AEC-Q100 Qualified
Log in to your account
Create New Account