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MP2451 3.3-36V, 0.6A, 2MHz Step-Down Converter SOT23
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pMPS MP2451 — step-down converter, 3.3-36V input, 0.6A output, 2 MHz, SOT23./p
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MP2451 3.3-36V, 0.6A, 2MHz Step-Down Converter SOT23
MPS MP2451 is a step-down converter that accepts 3.3 V to 36 V input, delivers 0.6 A, switches at 2 MHz, supplied in a SOT23 package.
Key Specifications
| Part Number | MP2451 |
| Input Voltage | 3.3 V to 36 V |
| Output Current | 0.6 A |
| Switching Frequency | 2 MHz |
| Quiescent Current | 130 uA |
| Topology | Step-Down Converter |
| Package | SOT23 |
| Ordering Codes | MP2451 |
Features
- 130μA Operating Quiescent Current
- Wide 3.3V to 36V Operating Input Range
- 500mΩ Internal Power MOSFET
- 2MHz fixed Switching Frequency
- Internally compensated
- Stable with Ceramic Output Capacitors
- Internal Soft-Start
- Precision Current Limit Without Current Sensing Resistor
- > 90% Efficiency
- Output Adjustable from +0.8V to 0.8xVIN
Applications
- High Voltage Power Conversion
- Automotive Systems
- Industrial Power Systems
- Distributed Power Systems
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.
- AEC-Q100 qualification suits this part to automotive rails.
- Package SOT23 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP2451?
3.3–36 V input and 0.6 A output.
What switching frequency does the MP2451 run at?
2 MHz.
Which package is the MP2451 available in?
SOT23.
Shenzhen Gaorunxin Technology Co., Ltd
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