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MPM3509-AEC1 4-36V, 0.9A, 2.2MHz Step-Down Converter QFN-17
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pMPS MPM3509-AEC1 — step-down converter, 4-36V input, 0.9A output, 2.2 MHz, QFN-17./p
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MPM3509-AEC1 4-36V, 0.9A, 2.2MHz Step-Down Converter QFN-17
MPS MPM3509-AEC1 is a step-down converter that accepts 4 V to 36 V input, delivers 0.9 A, switches at 2.2 MHz, supplied in a QFN-17 package.
Key Specifications
| Part Number | MPM3509-AEC1 |
| Input Voltage | 4 V to 36 V |
| Output Current | 0.9 A |
| Switching Frequency | 2.2 MHz |
| Topology | Step-Down Converter |
| Package | QFN-17 |
| Ordering Codes | MPM3509-AEC1 |
Features
- Complete Switch-Mode Power Supply
- Wide 4V to 36V Operating Input Range
- 0.9A Continuous Load Current
- 90mΩ/50mΩ Low RDS(ON) Internal Power MOSFETs
- Fixed 2.2MHz Switching Frequency
- Frequency Foldback at a High Input Voltage
- 450kHz to 2.2MHz Frequency Sync
- Forced Continuous Conduction Mode (CCM )
- Power Good (PG) Indicator
- Over-Current Protection (OCP) with Valley- Current Detection and Hiccup
Applications
- Industrial Controls
- Automotive
- Medical and Imaging Equipment
- Telecom 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-17 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MPM3509-AEC1?
4–36 V input and 0.9 A output.
What switching frequency does the MPM3509-AEC1 run at?
2.2 MHz.
Which package is the MPM3509-AEC1 available in?
QFN-17.
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