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MP4575 4.5-55V, 5A Step-Down Converter TSSOP-20
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pMPS MP4575 — step-down converter, 4.5-55V input, 5A output, TSSOP-20./p
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MP4575 4.5-55V, 5A Step-Down Converter TSSOP-20
MPS MP4575 is a step-down converter that accepts 4.5 V to 55 V input, delivers 5 A, supplied in a TSSOP-20 package.
Key Specifications
| Part Number | MP4575 |
| Input Voltage | 4.5 V to 55 V |
| Output Current | 5 A |
| Topology | Step-Down Converter |
| Package | TSSOP-20 |
| Ordering Codes | MP4575 |
Features
- Wide 4.5V to 55V Input Voltage Range
- 90mΩ and 70mΩ Internal High-Side and Low-Side Power MOSFETs
- Peak-Current-Mode Control
- Programmable Switching Frequency
- Optional External Soft Start
- Over-Current Protection (OCP) with Valley Current Detection
- Supports External Synchronous Clock
- Over-Voltage Protection (OVP)
- Current Limit Decreases during Output Short for Better Thermal Performance
- Power Good Indication
Applications
- PoE Input Non-Isolated Buck
- Industrial Power Systems
- Printers and Scanners
- Automotive 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 TSSOP-20 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP4575?
4.5–55 V input and 5 A output.
Which package is the MP4575 available in?
TSSOP-20.
Shenzhen Gaorunxin Technology Co., Ltd
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