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MP28164 1.2-5.5V, 4.2A, 2MHz Buck-Boost Converter QFN-11
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pMPS MP28164 — buck-boost converter, 1.2-5.5V input, 4.2A output, 2 MHz, QFN-11./p
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MP28164 1.2-5.5V, 4.2A, 2MHz Buck-Boost Converter QFN-11
MPS MP28164 is a buck-boost converter that accepts 1.2 V to 5.5 V input, delivers 4.2 A, switches at 2 MHz, supplied in a QFN-11 package.
Key Specifications
| Part Number | MP28164 |
| Input Voltage | 1.2 V to 5.5 V |
| Output Voltage | 1.5 V to 5 V |
| Output Current | 4.2 A |
| Switching Frequency | 2 MHz |
| Quiescent Current | 25 uA |
| Topology | Buck-Boost Converter |
| Package | QFN-11 |
| Ordering Codes | MP28164 |
Features
- 1.8V Minimum Start-Up Input Voltage
- 1.2V to 5.5V Input Work Range
- 1.5V to 5V Output Range
- 4.2A Switching Current Limit
- 3.3V/2A Load Capability from a 2.5V-to- 5.5V Input Supply
- 2MHz Fixed or External Synchronous Switching Frequency
- Selectable PSM/PWM Mode
- Typical 25μA Quiescent Current
- High Efficiency up to 95%
- Load Disconnect during Shutdown
Typical Application Circuit
Applications
- Battery-Powered Devices
- Portable Instruments
- Tablet PC
Design Notes
- Buck-boost operation keeps the output regulated either side of the input, which costs efficiency compared with a pure buck at the same rating.
- Power switches are integrated, so the thermal path is the PCB copper under the pad.
- Package QFN-11 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP28164?
1.2–5.5 V input and 4.2 A output.
What switching frequency does the MP28164 run at?
2 MHz.
Which package is the MP28164 available in?
QFN-11.
Shenzhen Gaorunxin Technology Co., Ltd
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