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MP1593 4.75-28V, 3A, 385kHz Step-Down Converter SOIC
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pMPS MP1593 — step-down converter, 4.75-28V input, 3A output, 385 kHz, SOIC./p
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MP1593 4.75-28V, 3A, 385kHz Step-Down Converter SOIC
MPS MP1593 is a step-down converter that accepts 4.75 V to 28 V input, delivers 3 A, switches at 385 kHz, supplied in a SOIC package.
Key Specifications
| Part Number | MP1593 |
| Input Voltage | 4.75 V to 28 V |
| Output Current | 3 A |
| Switching Frequency | 385 kHz |
| Topology | Step-Down Converter |
| Package | SOIC |
| Ordering Codes | MP1593 |
Features
- 3A Output Current
- Programmable Soft-Start
- 100mΩ Internal Power MOSFET Switch
- Stable with Low ESR Output Ceramic Capacitors
- Up to 95% Efficiency
- 20μA Shutdown Mode
- Fixed 385kHz Frequency
- Thermal Shutdown
- Cycle-by-Cycle Over Current Protection
- Wide 4.75V to 28V Operating Input Range
Applications
- Distributed Power Systems
- Battery Chargers
- Pre-Regulator for Linear Regulators
- Flat Panel TVs
- Set-Top Boxes
- Cigarette Lighter Powered Devices
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 SOIC — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP1593?
4.75–28 V input and 3 A output.
What switching frequency does the MP1593 run at?
385 kHz, programmable.
Which package is the MP1593 available in?
SOIC.
Shenzhen Gaorunxin Technology Co., Ltd
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