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MP2303A 4.7-28V, 3A, 360kHz Step-Down Converter SOIC
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pMPS MP2303A — step-down converter, 4.7-28V input, 3A output, 360 kHz, SOIC./p
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MP2303A 4.7-28V, 3A, 360kHz Step-Down Converter SOIC
MPS MP2303A is a step-down converter that accepts 4.7 V to 28 V input, delivers 3 A, switches at 360 kHz, supplied in a SOIC package.
Key Specifications
| Part Number | MP2303A |
| Input Voltage | 4.7 V to 28 V |
| Output Current | 3 A |
| Switching Frequency | 360 kHz |
| Topology | Step-Down Converter |
| Package | SOIC |
| Ordering Codes | MP2303A |
Features
- 3A Output Current
- Wide 4.7V to 28V Operating Input Range
- Integrated MOSFET Switches
- Output Adjustable from 0.80V to 25V
- Up to 95% Efficiency
- Programmable Soft-Start
- Stable with Low ESR Ceramic Output Capacitors
- Fixed 360kHz Frequency
- Cycle-by-Cycle Over Current Protection
- Input Under Voltage Lockout
Applications
- Distributed Power Systems
- Pre-Regulator for Linear Regulators
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 SOIC — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP2303A?
4.7–28 V input and 3 A output.
What switching frequency does the MP2303A run at?
360 kHz, programmable.
Which package is the MP2303A available in?
SOIC.
Shenzhen Gaorunxin Technology Co., Ltd
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