MPQ4423-AEC1
Automotive Grade, High Efficiency 3A, 36V max, Synchronous Step-Down Converter with PG and Ext. Sync
Session textval
Session Titefor popup
- Vin (min) (V)4
- Vin (max) (V)30
- Iout (max) (A)3
- Iq (typ) (mA)0.5
- Vfb (V)0.792
- fsw (max) (kHz)410
- Control ModeCurrent Mode
- Package (mm)QFN-8 (3x3)
- GradeAutomotive
- Regulated Outputs1
- Vout (min) (V)0.8
- Vout (max) (V)32.4
- Isw Limit (typ) (A)4.4
- Max Duty Cycle (%)0.95
The MPQ4423 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to achieve a 3A continuous output current with excellent load and line regulation over a wide input supply range. The MPQ4423 has synchronous mode operation for higher efficiency over the output current load range.
Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection and thermal shut down.
The MPQ4423 requires a minimal number of readily-available standard external components, and is available in a space-saving QFN-8 (3mmx3mm) package.
-
Show more
Show less
Features & Benefits
- Wide 4V to 30V Continuous Operating Input Range
- 36V Input Transient Tolerance for Automotive Load Dump
- 85mO/55mO Low RDS(ON) Internal Power MOSFETs
- High-Efficiency Synchronous Mode Operation
- Default 410kHz Switching Frequency
- Synchronizes to a 200kHz to 2.2MHz External Clock
- High Duty Cycle for Automotive Cold-crank
- Power-Save Mode
- Internal Soft-Start
- Power Good
- OCP Protection and Hiccup
- Thermal Shutdown
- Output Adjustable from 0.8V
- Available in an QFN-8 (3mmx3mm)
- Available in AEC-Q100 Grade 1
Active Part Numbers:
MPQ4423GQ-AEC1-P MPQ4423GQ-AEC1-Z
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z 
Recommended Inductors
Inductor Selector Tool
MPQ4423-AEC1 Resources
-
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
HEAD UNITS (MID-RANGE)APPLICATIONAutomotive head unit designs have evolved from the traditional hardware interfaces into sophisticated infotainment systems that offer various in-cabin functionalities. These features include navigation, wireless connections, passenger entertainment, gesture recognition, and voice control. As consumer expectations for infotainment features continue to increase, manufacturers face design challenges ...
-
APPLICATION
LIDARAPPLICATIONLaser imaging, detection, and ranging (LiDAR) is a rapidly expanding market for automotive advanced driver assistance system (ADAS) applications. Autonomous vehicle perception sensing is a cutting-edge functionality of ADAS technologies, and will continue to develop as new cars integrate radar with cameras and LiDAR systems. LiDAR uses real-time measurements of light pulses to offer higher bandwid...
-
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
REARVIEW CAMERAS (COAXIAL)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
FRONT-FACING CAMERAS (OFF BATTERY)APPLICATIONFront-facing cameras are an increasingly popular camera subsystem used in advanced driver assistance systems (ADAS) applications. Because this feature is becoming standard in more and more vehicles, off-battery camera systems must offer high integration and fast data processing to enable accurate, real-time monitoring of possible hazards in front of the vehicle, in addition to assisting with integ...
-
APPLICATION
FRONT-FACING CAMERAS (COAXIAL)APPLICATIONFront-facing cameras are an increasingly popular 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 in front of the vehicle, and assist with integrated systems su...
-
APPLICATION
USB TYPE-C POWER DELIVERYAPPLICATIONUSB Type-C power delivery (PD) is gaining popularity across applications and markets, including in automotive. USB ports have become an expected standard in most car models, and are typically expected to offer both charging and data functionality. USB Type-C improves on older USB designed by offering a smaller, reversible port for easy plug-in and double the transfer speed of USB 3.0. USB PD proto...
-
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
360° SURROUND VIEW CAMERASAPPLICATION360° surround view cameras help eliminate blind spots for drivers by providing a birds eye view of the car and typically channeling it directly to an LCD display located in the cabins head unit. This image is a composite created from multiple cameras located around the vehicle, usually at least four. Sometimes thought of as the next step in evolution from the backup camera, 360° surround view came...
-
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...
-
APPLICATION
TELEMATICS/E-CALLSAPPLICATIONTelematics and e-call systems help increase vehicle safety by monitoring conditions and, in the event of a crash, assisting the driver with or alerting emergency responders directly to the event. These embedded onboard tools can monitor diagnostics and offer benefits such as vehicle tracking, as well communication for roadside assistance and emergency calls. Of course, new features also bring grea...
-
APPLICATION
77GHZ RADARAPPLICATION77GHz radar is quickly growing in popularity for automotive advanced driver assistance system (ADAS) applications. Perception-sensing systems are a growing market within ADAS technologies, and will continue to expand as new cars integrate radar with cameras and even LIDAR systems. Automotive imaging radar is used as an additional way to sense objects or potential hazards around the vehicle. 77GHz ...
-
PRODUCT CATEGORY
VIN (MAX) 30V TO 48VPRODUCT CATEGORY -
PRODUCT CATEGORY
STEP-DOWN CONVERTERSPRODUCT CATEGORY -
PRODUCT CATEGORY
CONVERTERSPRODUCT CATEGORY -
ARTICLE
PRACTICAL DESIGN OF A MULTI-OUTPUT FLYBACK CONVERTER WITH IMPROVED CROSS-REGULATIONARTICLEA stacked-output topology, combined with a weighted feedback network, improves cross-regulation in multi-output flyback converters. This approach allows the main regulated output and the stacked auxiliary output to both contribute to the feedback loop, reducing the voltage deviation typically observed in semi-regulated flyback outputs. This article applies that methodology to a complete offline...
-
PRODUCT
MPQ81811-AEC1PRODUCT26V, 8A, Low-IQ, Synchronous, Buck Converter with 2-Bit VID
-
PRODUCT
MPQ4331-AEC1PRODUCT36V, 0.5A to 1A, Low Quiescent Current, Synchronous Step-Down Converter, AEC-Q100 Qualified
-
PRODUCT
MPQ4334J-AEC1PRODUCT36V, 0.5A to 4A, Low-EMI, Synchronous Step-Down Converter, AEC-Q100 Qualified
-
PRODUCT
MP4334PRODUCT36V, 0.5A to 4A, Low Quiescent Current, Synchronous Step-Down Converter
-
PRODUCT
MPQ4589-AEC1PRODUCT90V, 0.8A, 9μA IQ, Synchronous Step-Down DC/DC Converter, AEC-Q100 Qualified
Order
Log in to your account
Create New Account