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MP2229 4.5-21V, 6A, 2MHz Synchronous Step-Down Converter QFN-14
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pMPS MP2229 — synchronous step-down converter, 4.5-21V input, 6A output, 2 MHz, QFN-14./p
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MP2229 4.5-21V, 6A, 2MHz Synchronous Step-Down Converter QFN-14
MPS MP2229 is a synchronous step-down converter that accepts 4.5 V to 21 V input, delivers 6 A, switches at 2 MHz, supplied in a QFN-14 package.
Key Specifications
| Part Number | MP2229 |
| Input Voltage | 4.5 V to 21 V |
| Output Current | 6 A |
| Switching Frequency | 2 MHz |
| Topology | Synchronous Step-Down Converter |
| Package | QFN-14 |
| Ordering Codes | MP2229 |
Features
- Wide 4.5V to 21V Operating Input Range
- 6A Output Current
- Low 40mΩ/18mΩ RDS(ON) of Internal Power MOSFETs
- Programmable Switching Frequency
- Frequency SYNC from 300KHz to 2MHz External Clock
- Low-Power Mode Selectable by an External Signal
- External Soft-Start
- Pre-Bias Start-Up
- OCP with Hiccup Mode
- Thermal Shutdown
Applications
- DSL Modems
- Cable Modems
- Set -Top Boxes
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-14 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP2229?
4.5–21 V input and 6 A output.
What switching frequency does the MP2229 run at?
2 MHz, programmable.
Which package is the MP2229 available in?
QFN-14.
Shenzhen Gaorunxin Technology Co., Ltd
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