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MP8757 5-18V, 7A Step-Down Converter QFN21
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pMPS MP8757 — step-down converter, 5-18V input, 7A output, QFN21./p
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MP8757 5-18V, 7A Step-Down Converter QFN21
MPS MP8757 is a step-down converter that accepts 5 V to 18 V input, delivers 7 A, supplied in a QFN21 package.
Key Specifications
| Part Number | MP8757 |
| Input Voltage | 5 V to 18 V |
| Output Current | 7 A |
| Topology | Step-Down Converter |
| Package | QFN21 |
| Ordering Codes | MP8757 |
Features
- Wide 5V to 18V Operating Input Range
- 7A Continuous Output Current
- Low RDS(ON) Internal Power MOSFETs
- Proprietary Switching Loss Reduction Technique
- Internal Soft Start
- Output Discharge
- 500kHZ Switching Frequency
- OCP, OVP, UVP Protection and Thermal Shutdown
- Latch off Reset via EN or Power Cycle
- Output Adjustable from 0.604V to 5.5V
Applications
- Laptop Computer
- Tablet PC
- Networking Systems
- Personal Video Recorders
- Flat Panel Television and Monitors
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 QFN21 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP8757?
5–18 V input and 7 A output.
Which package is the MP8757 available in?
QFN21, with ordering codes MP8757GL-Z.
Shenzhen Gaorunxin Technology Co., Ltd
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