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MPQ4228-C-AEC1 4.2-36V, 3A Step-Down Converter QFN-22
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pMPS MPQ4228-C-AEC1 — Step-Down Converter, 4.2-36V input, 3 A output, QFN-22, AEC-Q100./p
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MPQ4228-C-AEC1 4.2-36V, 3A Step-Down Converter QFN-22
The MPS MPQ4228-C-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 QFN-22 package. The part is AEC-Q100 qualified.
The MPQ4228-C integrates a monolithic, step- down switch-mode converter with a single USB current-limit switch, as well as a Type-C 5V @ 3A mode configuration channel for USB ports.
Key Specifications
| Part Number | MPQ4228-C-AEC1 |
| Function | Step-Down Converter |
| Input Voltage | 4.2 V to 36 V |
| Current Rating | 3 A |
| Package | QFN-22 |
| Qualification | AEC-Q100 |
| Ordering Codes | MPQ4228-C-AEC1 |
Features
- Supports BC1.2 CDP Mode
- Supports USB Type-C 5V @ 3A DFP Mode
- USB_OUT, DP/DM, CC1/CC2 Pins Short- to-Battery Protection
- Wide 4.2V to 36V Continuous Operating Input Range
- Passes Apple MFI R33 Certification Test
- Passes USB-IF Type-C Certification Test
- Selectable Switching Frequency (420kHz and 2.2MHz with Spread Spectrum)
- Integrated High Bandwidth USB2.0 Data Switch with OVP
- Adjustable Line Drop Compensation
- Accurate 3.55A and 2.85A USB Current Limit
Typical Application Circuit
Applications
- USB Charging Downstream Ports (CDP)
- USB Type-C DFP Ports
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 MPQ4228-C-AEC1 support?
4.2 V to 36 V. The rated output is 3 A.
Which package and ordering codes apply to the MPQ4228-C-AEC1?
QFN-22; order codes include MPQ4228-C-AEC1.
What are the defining features of the MPQ4228-C-AEC1?
Supports BC1.2 CDP Mode Supports USB Type-C 5V @ 3A DFP Mode
Is the MPQ4228-C-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.
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