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MP2309 4.75-23V, 1A Step-Down Converter SOIC
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pMPS MP2309 — step-down converter, 4.75-23V input, 1A output, SOIC./p
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MP2309 4.75-23V, 1A Step-Down Converter SOIC
MPS MP2309 is a step-down converter that accepts 4.75 V to 23 V input, delivers 1 A, supplied in a SOIC package.
Key Specifications
| Part Number | MP2309 |
| Input Voltage | 4.75 V to 23 V |
| Output Current | 1 A |
| Topology | Step-Down Converter |
| Package | SOIC |
| Ordering Codes | MP2309 |
Features
- 1A Output Current
- Wide 4.75V to 23V Operating Input Range
- Integrated 140mΩ Power MOSFET Switches
- Output Adjustable from 0.923V to 20V
- Up to 95% Efficiency
- Programmable Soft-Start
- Stable with Low ESR Ceramic Output Capacitors
- Fixed 340KHz Frequency
- Cycle-by-Cycle Over Current Protection
- Input Under Voltage Lockout
Applications
- Distributed Power Systems
- Networking Systems
- FPGA, DSP, ASIC Power Supplies
- Green Electronics/ Appliances
- Notebook Computers "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.
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 MP2309?
4.75–23 V input and 1 A output.
Which package is the MP2309 available in?
SOIC.
Shenzhen Gaorunxin Technology Co., Ltd
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