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MP2905 3-28V, 200kHz Synchronous Step-Down Controller MSOP-10
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pMPS MP2905 — synchronous step-down controller, 3-28V input, 200 kHz, MSOP-10./p
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MP2905 3-28V, 200kHz Synchronous Step-Down Controller MSOP-10
MPS MP2905 is a synchronous step-down controller that accepts 3 V to 28 V input, switches at 200 kHz, supplied in a MSOP-10 package.
Key Specifications
| Part Number | MP2905 |
| Input Voltage | 3 V to 28 V |
| Switching Frequency | 200 kHz |
| Topology | Synchronous Step-Down Controller |
| Package | MSOP-10 |
| Ordering Codes | MP2905 |
Features
- Wide 3V to 28V Operating Input Range
- Output Adjustable from 0.6V to 0.9*Vin
- Switching frequency from 200kHz to 500kHz
- Programmable Soft-Start
- Hiccup current limit
- Lossless peak current sensing
- MSOP-10 package
Applications
- Motherboard Power Supplies
- AGP and PCI-Express Power Supplies
- Graphic-Card Power Supplies
- Set-Top Boxes
- Point-of-Load Power Supplies
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 MSOP-10 — check the land pattern in the datasheet before layout.
Common Questions
What switching frequency does the MP2905 run at?
200 kHz, programmable.
Which package is the MP2905 available in?
MSOP-10.
Shenzhen Gaorunxin Technology Co., Ltd
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