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MP28119 2.5-6V, 1.7MHz Synchronous Step-Down Converter QFN8
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pMPS MP28119 — synchronous step-down converter, 2.5-6V input, 1.7 MHz, QFN8./p
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MP28119 2.5-6V, 1.7MHz Synchronous Step-Down Converter QFN8
MPS MP28119 is a synchronous step-down converter that accepts 2.5 V to 6 V input, switches at 1.7 MHz, supplied in a QFN8 package.
Key Specifications
| Part Number | MP28119 |
| Input Voltage | 2.5 V to 6 V |
| Switching Frequency | 1.7 MHz |
| Topology | Synchronous Step-Down Converter |
| Package | QFN8 |
| Ordering Codes | MP28119 |
Features
- High Efficiency: Up to 89%
- 1.7MHz Constant Switching Frequency
- 600mA Available Load Current
- 2.5V to 6V Input Voltage Range
- 100% Duty Cycle in Dropout
- Current Mode Control
- Short Circuit Protection
- Thermal Fault Protection
- Output Discharge Function
- <0.1μA Shutdown Current
Applications
- Cellular and Smart Phones
- Microprocessors and DSP Core Supplies
- MP3 Players
- Digital Still and Video Cameras
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.
- Package QFN8 — check the land pattern in the datasheet before layout.
Common Questions
What switching frequency does the MP28119 run at?
1.7 MHz.
Which package is the MP28119 available in?
QFN8, with ordering codes MP28119EG-1, MP28119EG-LF, MP28119EG-LF-Z.
Shenzhen Gaorunxin Technology Co., Ltd
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