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MPM3630 4.5-18V, 3A, 1.4MHz Synchronous Step-Down Regulator QFN20
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pMPS MPM3630 — synchronous step-down regulator, 4.5-18V input, 3A output, 1.4 MHz, QFN20./p
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MPM3630 4.5-18V, 3A, 1.4MHz Synchronous Step-Down Regulator QFN20
MPS MPM3630 is a synchronous step-down regulator that accepts 4.5 V to 18 V input, delivers 3 A, switches at 1.4 MHz, supplied in a QFN20 package.
Key Specifications
| Part Number | MPM3630 |
| Input Voltage | 4.5 V to 18 V |
| Output Current | 3 A |
| Switching Frequency | 1.4 MHz |
| Topology | Synchronous Step-Down Regulator |
| Package | QFN20 |
| Ordering Codes | MPM3630 |
Features
- Complete Switch Mode Power Supply
- 4.5V to 18V Wide Operating Input Range
- 3A Continuous Load Current
- 50mΩ/22mΩ Low RDS(ON) Internal Power MOSFETs
- Integrated Inductor
- Fixed 1.4MHz Switching Frequency
- 1MHz-2MHz Frequency Sync
- Internal Power Save Mode for Light Load
- Power Good Indicator
- OCP Protection and Hiccup
Applications
- Industrial Controls
- Medical and Imaging Equipment
- Telecom Applications
- LDO Replacement
- Space and Resource-Limited 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.
- Package QFN20 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MPM3630?
4.5–18 V input and 3 A output.
What switching frequency does the MPM3630 run at?
1.4 MHz.
Which package is the MPM3630 available in?
QFN20.
Shenzhen Gaorunxin Technology Co., Ltd
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