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MPQ9841-AEC1 3.3-36V, 1A, 350kHz Synchronous Step-Down Converter QFN-16
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pMPS MPQ9841-AEC1 — synchronous step-down converter, 3.3-36V input, 1A output, 350 kHz, QFN-16./p
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MPQ9841-AEC1 3.3-36V, 1A, 350kHz Synchronous Step-Down Converter QFN-16
MPS MPQ9841-AEC1 is a synchronous step-down converter that accepts 3.3 V to 36 V input, delivers 1 A, switches at 350 kHz, supplied in a QFN-16 package.
Key Specifications
| Part Number | MPQ9841-AEC1 |
| Input Voltage | 3.3 V to 36 V |
| Output Current | 1 A |
| Switching Frequency | 350 kHz |
| Topology | Synchronous Step-Down Converter |
| Package | QFN-16 |
| Ordering Codes | MPQ9841-AEC1 |
Features
- 2μA Low Shutdown Supply Current
- 14μA No-Load Quiescent Current
- Internal 125mΩ High-Side and 115mΩ Low- Side MOSFET
- 350kHz to 2.5MHz Programmable Switching Frequency
- Power Good (PG) Output
- External Soft Start (SS)
- 80ns Minimum On Time
- Selectable Forced CCM and AAM
- Low Dropout Mode
- Hiccup Over-Current Protection (OCP)
Applications
- Automotive 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-16 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MPQ9841-AEC1?
3.3–36 V input and 1 A output.
What switching frequency does the MPQ9841-AEC1 run at?
350 kHz, programmable.
Which package is the MPQ9841-AEC1 available in?
QFN-16.
Shenzhen Gaorunxin Technology Co., Ltd
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