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MPQ2189-AEC1 2.7-6V, 4A, 1.25MHz Synchronous Step-Down Converter QFN-14
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pMPS MPQ2189-AEC1 — synchronous step-down converter, 2.7-6V input, 4A output, 1.25 MHz, QFN-14./p
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MPQ2189-AEC1 2.7-6V, 4A, 1.25MHz Synchronous Step-Down Converter QFN-14
MPS MPQ2189-AEC1 is a synchronous step-down converter that accepts 2.7 V to 6 V input, delivers 4 A, switches at 1.25 MHz, supplied in a QFN-14 package.
Key Specifications
| Part Number | MPQ2189-AEC1 |
| Input Voltage | 2.7 V to 6 V |
| Output Current | 4 A |
| Switching Frequency | 1.25 MHz |
| Topology | Synchronous Step-Down Converter |
| Package | QFN-14 |
| Ordering Codes | MPQ2189-AEC1 |
Features
- Designed for Heavy Loads: o Up to 4A Load Current o Internal 40mΩ High-Side and 22mΩ Low-Side Power MOSFETs
Applications
- Automotive Infotainment Systems
- Automotive Telematics Systems
- Advanced Driver Assistance Systems (ADAS)
- Automotive Applications
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-14 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MPQ2189-AEC1?
2.7–6 V input and 4 A output.
What switching frequency does the MPQ2189-AEC1 run at?
1.25 MHz.
Which package is the MPQ2189-AEC1 available in?
QFN-14.
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