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MPQ4483-AEC1 4.2-36V, 3A Step-Down Converter QFN25
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pMPS MPQ4483-AEC1 — Step-Down Converter, 4.2-36V input, 3 A output, QFN25, AEC-Q100./p
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MPQ4483-AEC1 4.2-36V, 3A Step-Down Converter QFN25
The MPS MPQ4483-AEC1 is a Step-Down Converter. It operates from a 4.2 V to 36 V input and is rated for 3 A. It is supplied in a QFN25 package. The part is AEC-Q100 qualified.
The MPQ4483 is a high-frequency, synchronous rectified, step-down, switch-mode converter.
Key Specifications
| Part Number | MPQ4483-AEC1 |
| Function | Step-Down Converter |
| Input Voltage | 4.2 V to 36 V |
| Current Rating | 3 A |
| Interface | PWM |
| Package | QFN25 |
| Qualification | AEC-Q100 |
| Ordering Codes | MPQ4483-AEC1 |
Features
- Supports BC1.2 CDP Mode
- Supports BC1.2 DCP Mode, Apple Divider Mode, 1.2V/1.2V Mode
- Supports Bidirectional USB2.0 High-Speed Data Switch
- 4.2V to 36V Operating Input Voltage Range
- 3A Output Current
- Internal Auto EN Pull-Up
- 25mΩ/20mΩ Low RDS(ON) Internal Buck Power MOSFETs
- Integrated 4mΩ Ground Sensing Resistor
- Frequency Adjustable (200kHz to 2.2MHz)
- Constant Current Limit, 2 Level Adjustable
Typical Application Circuit
Applications
- USB Charging Ports
- Automotive Infotainment System
Design Notes
- Charge current accuracy depends on the sense resistor tolerance, so use a 1% or better part and keep its traces Kelvin-connected.
- Wire the NTC input for JEITA profile control if the pack is charged over temperature.
- Set the input current limit to what the adapter can actually deliver; a limit above the adapter rating causes the input rail to collapse mid-charge.
- Termination current and recharge threshold dominate cycle life in shallow-cycling products.
Common Questions
What input voltage does the MPQ4483-AEC1 support?
4.2 V to 36 V. The rated output is 3 A.
Which package and ordering codes apply to the MPQ4483-AEC1?
QFN25; order codes include MPQ4483-AEC1.
What are the defining features of the MPQ4483-AEC1?
Supports BC1.2 CDP Mode Supports BC1.2 DCP Mode, Apple Divider Mode, 1.2V/1.2V Mode
Is the MPQ4483-AEC1 qualified for automotive designs?
Yes — it is AEC-Q100 qualified. Confirm the grade against the qualification summary in the datasheet before specifying it on a safety-related rail.
Shenzhen Gaorunxin Technology Co., Ltd
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