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MPM38111 2.7-6V, 1A, 1MHz Step-Down Converter QFN-14
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pMPS MPM38111 — step-down converter, 2.7-6V input, 1A output, 1 MHz, QFN-14./p
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MPM38111 2.7-6V, 1A, 1MHz Step-Down Converter QFN-14
MPS MPM38111 is a step-down converter that accepts 2.7 V to 6 V input, delivers 1 A, switches at 1 MHz, supplied in a QFN-14 package.
Key Specifications
| Part Number | MPM38111 |
| Input Voltage | 2.7 V to 6 V |
| Output Current | 1 A |
| Switching Frequency | 1 MHz |
| Quiescent Current | 45 uA |
| Topology | Step-Down Converter |
| Package | QFN-14 |
| Ordering Codes | MPM38111 |
Features
- Dual 1A Output Current
- >93% Peak Efficiency
- >80% Light-Load Efficiency
- Ultra-Low IQ: 45μA
- 85mΩ and 40mΩ Internal Power MOSFET
- Wide 2.7V to 6V Operating Input Range
- Default 1MHz Switching Frequency
- 180° Phase-Shifted Operation
- 100% Duty Cycle Operation
- Cycle-by-Cycle Over-Current Protection (OCP)
Applications
- Optical Modules
- Industrial Products
- IoT Devices
- LDO Replacement
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 MPM38111?
2.7–6 V input and 1 A output.
What switching frequency does the MPM38111 run at?
1 MHz.
Which package is the MPM38111 available in?
QFN-14.
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