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MP8770 3-17V, 8A, 700kHz Step-Down Converter QFN-16
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pMPS MP8770 — step-down converter, 3-17V input, 8A output, 700 kHz, QFN-16./p
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MP8770 3-17V, 8A, 700kHz Step-Down Converter QFN-16
MPS MP8770 is a step-down converter that accepts 3 V to 17 V input, delivers 8 A, switches at 700 kHz, supplied in a QFN-16 package.
Key Specifications
| Part Number | MP8770 |
| Input Voltage | 3 V to 17 V |
| Output Current | 8 A |
| Switching Frequency | 700 kHz |
| Quiescent Current | 100 uA |
| Topology | Step-Down Converter |
| Package | QFN-16 |
| Ordering Codes | MP8770 |
Features
- Wide 3V to 17V Operating Input Range
- 8A Output Current
- 22mΩ/10mΩ Low RDS(ON) Internal Power MOSFETs
- 100μA Quiescent Current
- Output Adjustable from 0.6V
- High-Efficiency Synchronous Mode Operation
- Pre-Biased Start-Up
- Fixed 700kHz Switching Frequency
- External Programmable Soft Start-Up Time
- EN and Power Good for Power Sequencing
Applications
- Security Cameras
- Portable Devices, XDSL Devices
- Digital Set-Top Boxes
- 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 QFN-16 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP8770?
3–17 V input and 8 A output.
What switching frequency does the MP8770 run at?
700 kHz, programmable.
Which package is the MP8770 available in?
QFN-16.
Shenzhen Gaorunxin Technology Co., Ltd
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