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MP2109 2.5-6V, 1.2MHz Synchronous Step-Down Converter QFN10
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pMPS MP2109 — synchronous step-down converter, 2.5-6V input, 1.2 MHz, QFN10./p
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MP2109 2.5-6V, 1.2MHz Synchronous Step-Down Converter QFN10
MPS MP2109 is a synchronous step-down converter that accepts 2.5 V to 6 V input, switches at 1.2 MHz, supplied in a QFN10 package.
Key Specifications
| Part Number | MP2109 |
| Input Voltage | 2.5 V to 6 V |
| Switching Frequency | 1.2 MHz |
| Topology | Synchronous Step-Down Converter |
| Package | QFN10 |
| Ordering Codes | MP2109 |
Features
- Up to 95% Efficiency
- 1.2MHz Constant Switching Frequency
- 800mA Load Current on Each Channel
- 2.5V to 6V Input Voltage Range
- Output Voltage as Low as 0.6V
- 100% Duty Cycle in Dropout
- Current Mode Control
- Short Circuit Protection
- Thermal Fault Protection
- <0.1µA Shutdown Current
Applications
- Cellular and Smart Phones
- Microprocessors and DSP Core Supplies
- MP3 Players
- Digital Still and Video Cameras
- Portable Instruments "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.
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 QFN10 — check the land pattern in the datasheet before layout.
Common Questions
What switching frequency does the MP2109 run at?
1.2 MHz.
Which package is the MP2109 available in?
QFN10.
Shenzhen Gaorunxin Technology Co., Ltd
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