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MP2305 4.75-23V, 2A, 340kHz Synchronous Rectified Step-Down Converter NOT RECOMMENDED FOR NEW SOIC
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pMPS MP2305 — Synchronous Rectified Step-Down Converter NOT RECOMMENDED FOR NEW, 4.75-23V input, 2 A output, SOIC./p
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MP2305 4.75-23V, 2A, 340kHz Synchronous Rectified Step-Down Converter NOT RECOMMENDED FOR NEW SOIC
The MPS MP2305 is a Synchronous Rectified Step-Down Converter NOT RECOMMENDED FOR NEW. It operates from a 4.75 V to 23 V input, is rated for 2 A and switches at 340 kHz. It is supplied in a SOIC package.
Key Specifications
| Part Number | MP2305 |
| Function | Synchronous Rectified Step-Down Converter NOT RECOMMENDED FOR NEW |
| Input Voltage | 4.75 V to 23 V |
| Current Rating | 2 A |
| Switching Frequency | 340 kHz |
| Peak Efficiency | 93% |
| Package | SOIC |
| Lifecycle | NRFND |
| Ordering Codes | MP2305 |
Features
- 2A Output Current
- Wide 4.75V to 23V Operating Input Range
- Integrated 130mΩ Power MOSFET Switches
- Output Adjustable from 0.923V to 20V
- Up to 93% Efficiency
- Programmable Soft-Start
- Stable with Low ESR Ceramic Output Capacitors
- Fixed 340kHz Frequency
- Cycle-by-Cycle Over Current Protection
- Input Under Voltage Lockout
Typical Application Circuit
Applications
- Distributed Power Systems
- Networking Systems
- FPGA, DSP, ASIC Power Supplies
- Green Electronics/ Appliances
Design Notes
- Size the inductor for the ripple current at the actual switching frequency, typically 30% of the DC load — not for the DC rating alone.
- The hot loop from input capacitor through the switch to ground sets conducted EMI. Keep that copper area as small as the layout allows.
- Output ripple is set by the capacitor ESR and its DC-bias derating; a 10 µF ceramic often behaves like 4 µF at the rated output voltage.
- Route the feedback divider from the output capacitor terminals, away from the switch node.
Common Questions
What input voltage does the MP2305 support?
4.75 V to 23 V. The rated output is 2 A.
Which package and ordering codes apply to the MP2305?
SOIC; order codes include MP2305.
What are the defining features of the MP2305?
2A Output Current Wide 4.75V to 23V Operating Input Range
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