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MP2238 4.2-18V, 8A, 600kHz Synchronous Step-Down Converter QFN-12
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pMPS MP2238 — synchronous step-down converter, 4.2-18V input, 8A output, 600 kHz, QFN-12./p
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MP2238 4.2-18V, 8A, 600kHz Synchronous Step-Down Converter QFN-12
MPS MP2238 is a synchronous step-down converter that accepts 4.2 V to 18 V input, delivers 8 A, switches at 600 kHz, supplied in a QFN-12 package.
Key Specifications
| Part Number | MP2238 |
| Input Voltage | 4.2 V to 18 V |
| Output Current | 8 A |
| Switching Frequency | 600 kHz |
| Topology | Synchronous Step-Down Converter |
| Package | QFN-12 |
| Ordering Codes | MP2238 |
Features
- Wide 4.2V to 18V Operating Input Range
- 8A Continuous Output Current
- 22mΩ/10mΩ Low RDS(ON) Internal Power MOSFETs
- Default 600mV Reference Voltage
- Adjustable Output Voltage
- 600kHz Switching Frequency
- Ton Extension
- Hiccup OCP Protection
- Thermal Shutdown Protection
- Available in a 12-Pin QFN 2mmx3mm Package
Applications
- Flat-Panel Television and Monitors
- Digital TV Power Supply
- Digital Set-Top Boxes
- Distributed Power 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.
- Package QFN-12 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP2238?
4.2–18 V input and 8 A output.
What switching frequency does the MP2238 run at?
600 kHz.
Which package is the MP2238 available in?
QFN-12.
Shenzhen Gaorunxin Technology Co., Ltd
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