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MP2235S 4.5-16V, 3A, 800kHz Synchronous Step-Down Converter TSOT23
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pMPS MP2235S — synchronous step-down converter, 4.5-16V input, 3A output, 800 kHz, TSOT23./p
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MP2235S 4.5-16V, 3A, 800kHz Synchronous Step-Down Converter TSOT23
MPS MP2235S is a synchronous step-down converter that accepts 4.5 V to 16 V input, delivers 3 A, switches at 800 kHz, supplied in a TSOT23 package.
Key Specifications
| Part Number | MP2235S |
| Input Voltage | 4.5 V to 16 V |
| Output Current | 3 A |
| Switching Frequency | 800 kHz |
| Topology | Synchronous Step-Down Converter |
| Package | TSOT23 |
| Ordering Codes | MP2235S |
Features
- Wide 4.5 V to 16 V Operating Input Range
- 120 mΩ/50 mΩ Low RDS(ON) Internal Power MOSFETs
- High-Efficiency Synchronous Mode Operation
- Fixed 800 kHz Switching Frequency
- Synchronizes from a 300 kHz to a 2 MHz External Clock
- Power-Save Mode at Light Load
- External Soft-Start
- Over-Current Protection and Hiccup
- Thermal Shutdown
- Output Adjustable from 0.804 V
Applications
- Notebook Systems and I/O Power
- Digital Set-Top Boxes
- Flat-Panel Televisions and Monitors
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 TSOT23 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP2235S?
4.5–16 V input and 3 A output.
What switching frequency does the MP2235S run at?
800 kHz.
Which package is the MP2235S available in?
TSOT23.
Shenzhen Gaorunxin Technology Co., Ltd
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