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MPQ4480 4.2-36V, 6A, 235kHz Step-Down Converter QFN-25
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pMPS MPQ4480 — step-down converter, 4.2-36V input, 6A output, 235 kHz, QFN-25./p
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MPQ4480 4.2-36V, 6A, 235kHz Step-Down Converter QFN-25
MPS MPQ4480 is a step-down converter that accepts 4.2 V to 36 V input, delivers 6 A, switches at 235 kHz, supplied in a QFN-25 package.
Key Specifications
| Part Number | MPQ4480 |
| Input Voltage | 4.2 V to 36 V |
| Output Current | 6 A |
| Switching Frequency | 235 kHz |
| Topology | Step-Down Converter |
| Package | QFN-25 |
| Ordering Codes | MPQ4480 |
Features
- 4.2V to 36V Operating Input Voltage Range
- 6A Output Current
- Internal Auto EN Pull-Up
- 20mΩ/15mΩ Low RDS(ON) Internal Buck Power MOSFETs
- Integrated 4mΩ Ground Sensing Resistor
- Frequency Adjustable (235kHz to 2.2MHz)
- CC Output Current Limit, 3-Level Adjustable, 2.75A/3.75A/7.5A
- Forced PWM Mode
- Frequency SYNC from 300kHz to 2.1MHz
- (Recommend: <25% of SYNC Duty Cycle)
Applications
- Automotive Infotainment System
- Automotive USB Hub
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.
- AEC-Q100 qualification suits this part to automotive rails.
- Package QFN-25 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MPQ4480?
4.2–36 V input and 6 A output.
What switching frequency does the MPQ4480 run at?
235 kHz.
Which package is the MPQ4480 available in?
QFN-25, with ordering codes MPQ4480GV-FD-AEC1-Z.
Shenzhen Gaorunxin Technology Co., Ltd
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