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MP2174C 2.7-5.5V, 4A, 1.1MHz Synchronous Step-Down Converter QFN-12
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pMPS MP2174C — synchronous step-down converter, 2.7-5.5V input, 4A output, 1.1 MHz, QFN-12./p
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MP2174C 2.7-5.5V, 4A, 1.1MHz Synchronous Step-Down Converter QFN-12
MPS MP2174C is a synchronous step-down converter that accepts 2.7 V to 5.5 V input, delivers 4 A, switches at 1.1 MHz, supplied in a QFN-12 package.
Key Specifications
| Part Number | MP2174C |
| Input Voltage | 2.7 V to 5.5 V |
| Output Current | 4 A |
| Switching Frequency | 1.1 MHz |
| Topology | Synchronous Step-Down Converter |
| Package | QFN-12 |
| Ordering Codes | MP2174C |
Features
- Forced PWM Mode Operation
- Wide 2.7V to 5.5V Operating Input Range
- Output Voltage as Low as 0.6V
- 4A Output Current
- 35mΩ and 18mΩ Internal Power MOSFET
- Peak Efficiency Above 96%
- 1.1MHz Frequency
- 100% Duty Cycle in Dropout
- 0.5ms Internal Soft-Start Time
- EN and Power Good for Power Sequencing
Applications
- Storage Drives
- Portable/Handheld Devices
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 MP2174C?
2.7–5.5 V input and 4 A output.
What switching frequency does the MP2174C run at?
1.1 MHz.
Which package is the MP2174C available in?
QFN-12.
Shenzhen Gaorunxin Technology Co., Ltd
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