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MP9485 4.5-100V, 2MHz Step-Down Converter SOIC
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pMPS MP9485 — step-down converter, 4.5-100V input, 2 MHz, SOIC./p
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MP9485 4.5-100V, 2MHz Step-Down Converter SOIC
MPS MP9485 is a step-down converter that accepts 4.5 V to 100 V input, switches at 2 MHz, supplied in a SOIC package.
Key Specifications
| Part Number | MP9485 |
| Input Voltage | 4.5 V to 100 V |
| Switching Frequency | 2 MHz |
| Quiescent Current | 170 uA |
| Topology | Step-Down Converter |
| Package | SOIC |
| Ordering Codes | MP9485 |
Features
- Wide 4.5V to 100V Input Range
- Hysteretic Control: No Compensation
- Up to 2MHz Switching Frequency
- PWM Dimming Control Input for LED Application
- Short-Circuit Protection (SCP) with Integrated High-Side MOSFET
- 170μA Quiescent Current
- Thermal Shutdown
- Available in a SOIC-8 Package with an Exposed Pad
Applications
- E-Bike Control Power Supplies
- Solar Energy Systems
- Automotive System Power
- Industrial Power Supplies
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 SOIC — check the land pattern in the datasheet before layout.
Common Questions
What switching frequency does the MP9485 run at?
2 MHz.
Which package is the MP9485 available in?
SOIC.
Shenzhen Gaorunxin Technology Co., Ltd
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