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MP2497A 4.5-50V, 3A, 100kHz Step-Down Converter SOIC8E
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pMPS MP2497A — step-down converter, 4.5-50V input, 3A output, 100 kHz, SOIC8E./p
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MP2497A 4.5-50V, 3A, 100kHz Step-Down Converter SOIC8E
MPS MP2497A is a step-down converter that accepts 4.5 V to 50 V input, delivers 3 A, switches at 100 kHz, supplied in a SOIC8E package.
Key Specifications
| Part Number | MP2497A |
| Input Voltage | 4.5 V to 50 V |
| Output Current | 3 A |
| Switching Frequency | 100 kHz |
| Topology | Step-Down Converter |
| Package | SOIC8E |
| Ordering Codes | MP2497A |
Features
- Wide 4.5V to 50V Operating Input Range
- Programmable Output Over Voltage Protection
- Output Adjustable from 0.8V to 25V
- 0.15Ω Internal Power MOSFET Switch
- Internal 4ms Soft Start
- Stable with Low ESR Output Ceramic Capacitors
- Fixed 100kHz Frequency
- Fast Switching Speed
- Thermal Shutdown
- Output Line Drop Compensation
Applications
- USB Power Supplies
- Automotive Cigarette Lighter Adapters
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 SOIC8E — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP2497A?
4.5–50 V input and 3 A output.
What switching frequency does the MP2497A run at?
100 kHz, programmable.
Which package is the MP2497A available in?
SOIC8E.
Shenzhen Gaorunxin Technology Co., Ltd
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