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MP3423 1.9-5.5V, 9A, 600kHz Synchronous Step-Up Converter QFN14
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pMPS MP3423 — synchronous step-up converter, 1.9-5.5V input, 9A output, 600 kHz, QFN14./p
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MP3423 1.9-5.5V, 9A, 600kHz Synchronous Step-Up Converter QFN14
MPS MP3423 is a synchronous step-up converter that accepts 1.9 V to 5.5 V input, delivers 9 A, switches at 600 kHz, supplied in a QFN14 package.
Key Specifications
| Part Number | MP3423 |
| Input Voltage | 1.9 V to 5.5 V |
| Output Voltage | 2.5 V to 5.5 V |
| Output Current | 9 A |
| Switching Frequency | 600 kHz |
| Quiescent Current | 43 uA |
| Topology | Synchronous Step-Up Converter |
| Package | QFN14 |
| Ordering Codes | MP3423 |
Features
- Up to 98% Efficiency
- 1.9V to 5.5V Input Range
- 2.5V to 5.5V Output Range
- Internal Synchronous Rectifier
- 600kHz Fixed Switching Frequency
- 9A Typical Switch Current Limit
- 43uA Quiescent Current
- High Efficiency over Full Load Range
- Internal Soft-start and Compensation
- True Output Load Disconnect from Input
Applications
- Battery-Powered Products
- Power Banks, Juice Packs, Battery Back-up Units
- USB Power Supply
- Consumer Electronic Accessories
Design Notes
- In boost mode the input current is continuous but the output current is pulsed; size the output capacitor for the load transient.
- Power switches are integrated, so the thermal path is the PCB copper under the pad.
- Package QFN14 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP3423?
1.9–5.5 V input and 9 A output.
What switching frequency does the MP3423 run at?
600 kHz.
Which package is the MP3423 available in?
QFN14.
Shenzhen Gaorunxin Technology Co., Ltd
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