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MPQ4316-AEC1 3.3-45V, 6A, 350kHz Synchronous Step-Down Converter QFN-20
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pMPS MPQ4316-AEC1 — synchronous step-down converter, 3.3-45V input, 6A output, 350 kHz, QFN-20./p
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MPQ4316-AEC1 3.3-45V, 6A, 350kHz Synchronous Step-Down Converter QFN-20
MPS MPQ4316-AEC1 is a synchronous step-down converter that accepts 3.3 V to 45 V input, delivers 6 A, switches at 350 kHz, supplied in a QFN-20 package.
Key Specifications
| Part Number | MPQ4316-AEC1 |
| Input Voltage | 3.3 V to 45 V |
| Output Current | 6 A |
| Switching Frequency | 350 kHz |
| Topology | Synchronous Step-Down Converter |
| Package | QFN-20 |
| Ordering Codes | MPQ4316-AEC1 |
Features
- Wide 3.3V to 45V Operating Voltage Range
- 6A of Continuous Output Current
- 1.7μA Low Shutdown Supply Current
- 18μA Sleep Mode Quiescent Current
- Internal 48mΩ High-Side MOSFET and 20mΩ Low-Side MOSFET
- 350kHz to 1000kHz Configurable Switching Frequency for Car Battery Applications
- Can Be Synchronized to External Clock
- Out-of-Phase Synchronized Clock Output
- Fixed Output Options: 3.3V, 5V
- Frequency Spread Spectrum (FSS) for Low EMI
Applications
- Automotive Infotainment
- Automotive Clusters
- Advanced Driver Assistance Systems
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-20 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MPQ4316-AEC1?
3.3–45 V input and 6 A output.
What switching frequency does the MPQ4316-AEC1 run at?
350 kHz.
Which package is the MPQ4316-AEC1 available in?
QFN-20.
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