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MP4420A 4-36V, 2A, 410kHz Step-Down Converter TSOT23
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pMPS MP4420A — step-down converter, 4-36V input, 2A output, 410 kHz, TSOT23./p
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MP4420A 4-36V, 2A, 410kHz Step-Down Converter TSOT23
MPS MP4420A is a step-down converter that accepts 4 V to 36 V input, delivers 2 A, switches at 410 kHz, supplied in a TSOT23 package.
Key Specifications
| Part Number | MP4420A |
| Input Voltage | 4 V to 36 V |
| Output Current | 2 A |
| Switching Frequency | 410 kHz |
| Topology | Step-Down Converter |
| Package | TSOT23 |
| Ordering Codes | MP4420A |
Features
- Wide 4V to 36V Continuous Operating Input Range
- 90mΩ/55mΩ Low RDS(ON) Internal Power MOSFETs
- High-Efficiency Synchronous Mode Operation
- Default 410kHz Switching Frequency
- Synchronizes to a 200kHz to 2.2MHz External Clock
- High Duty Cycle for Automotive Cold Crank
- Forced CCM
- Internal Soft Start
- Power Good
- Over-Current Protection (OCP) and Hiccup
Applications
- Automotive
- Industrial Control System
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 TSOT23 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP4420A?
4–36 V input and 2 A output.
What switching frequency does the MP4420A run at?
410 kHz.
Which package is the MP4420A available in?
TSOT23.
Shenzhen Gaorunxin Technology Co., Ltd
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