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MP2388 4.5-21V, 1A, 2MHz Step-Down Converter QFN-8
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pMPS MP2388 — step-down converter, 4.5-21V input, 1A output, 2 MHz, QFN-8./p
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MP2388 4.5-21V, 1A, 2MHz Step-Down Converter QFN-8
MPS MP2388 is a step-down converter that accepts 4.5 V to 21 V input, delivers 1 A, switches at 2 MHz, supplied in a QFN-8 package.
Key Specifications
| Part Number | MP2388 |
| Input Voltage | 4.5 V to 21 V |
| Output Current | 1 A |
| Switching Frequency | 2 MHz |
| Topology | Step-Down Converter |
| Package | QFN-8 |
| Ordering Codes | MP2388 |
Features
- Wide 4.5V to 21V Operating Input Range
- 1A Load Current
- 110mΩ/50mΩ Low RDS(ON) Internal Power MOSFETs
- Low Quiescent Current
- High-Efficiency Synchronous Mode Operation
- Fixed 2MHz Switching Frequency
- AAM Power Save Mode
- Internal Soft Start
- Over-Current Protection (OCP) and Hiccup
- Thermal Shutdown
Applications
- Notebook Systems and I/O Power
- Digital Set-Top Boxes
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 QFN-8 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP2388?
4.5–21 V input and 1 A output.
What switching frequency does the MP2388 run at?
2 MHz.
Which package is the MP2388 available in?
QFN-8, with ordering codes MP2388GQEU-Z.
Shenzhen Gaorunxin Technology Co., Ltd
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