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MPQ4322-AEC1 3.3-36V, 2A, 350kHz Synchronous Step-Down Converter QFN-12
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pMPS MPQ4322-AEC1 — synchronous step-down converter, 3.3-36V input, 2A output, 350 kHz, QFN-12./p
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MPQ4322-AEC1 3.3-36V, 2A, 350kHz Synchronous Step-Down Converter QFN-12
MPS MPQ4322-AEC1 is a synchronous step-down converter that accepts 3.3 V to 36 V input, delivers 2 A, switches at 350 kHz, supplied in a QFN-12 package.
Key Specifications
| Part Number | MPQ4322-AEC1 |
| Input Voltage | 3.3 V to 36 V |
| Output Current | 2 A |
| Switching Frequency | 350 kHz |
| Topology | Synchronous Step-Down Converter |
| Package | QFN-12 |
| Ordering Codes | MPQ4322-AEC1 |
Features
- High Performance for Improved Thermals: o Integrated 70mΩ/50mΩ MOSFETs o 65ns Minimum On Time (tON_MIN) o 50ns Minimum Off Time (tOFF_MIN)
Applications
- Automotive Infotainment
- Automotive Clusters
- Advanced Driver-Assistance Systems (ADAS)
Design Notes
- The step-down topology needs an inductor and output capacitor sized for the ripple at the switching frequency, not just the DC load.
- Keep the input loop short — high di/dt at the switch node sets conducted EMI.
- Power switches are integrated, so the thermal path is the PCB copper under the pad.
- AEC-Q100 qualification suits this part to automotive rails.
- Package QFN-12 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MPQ4322-AEC1?
3.3–36 V input and 2 A output.
What switching frequency does the MPQ4322-AEC1 run at?
350 kHz.
Which package is the MPQ4322-AEC1 available in?
QFN-12.
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