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MP8843 0.6-1.1V, 3A, 3.4MHz Step-Down Converter QFN-12
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pMPS MP8843 — step-down converter, 0.6-1.1V input, 3A output, 3.4 MHz, QFN-12./p
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MP8843 0.6-1.1V, 3A, 3.4MHz Step-Down Converter QFN-12
MPS MP8843 is a step-down converter that accepts 0.6 V to 1.1 V input, delivers 3 A, switches at 3.4 MHz, supplied in a QFN-12 package.
Key Specifications
| Part Number | MP8843 |
| Input Voltage | 0.6 V to 1.1 V |
| Output Current | 3 A |
| Switching Frequency | 3.4 MHz |
| Topology | Step-Down Converter |
| Package | QFN-12 |
| Ordering Codes | MP8843 |
Features
- Wide Input Range from 2.6V to 6V
- Up to 3A of Continuous Current
- 55mΩ and 35mΩ Internal Power MOSFET
- High-Speed I2C Communication Interface up to 3.4MHz
- I2C Programmable Output Voltage from 0.6V to 1.1V for Direct VOUT Sense
- VOUT Range Extendable by Adding External Feedback Resistor
- Programmable Switching Frequency from 1MHz to 2MHz
- Programmable Voltage Transition Slew Rate
- I2C Selectable Power Save Mode
- External and I2C-Controlled Power Good Indicator
Applications
- Small/Handheld Devices
- Storage Drives
- Portable Instruments
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-12 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP8843?
0.6–1.1 V input and 3 A output.
What switching frequency does the MP8843 run at?
3.4 MHz, programmable.
Which package is the MP8843 available in?
QFN-12.
Shenzhen Gaorunxin Technology Co., Ltd
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