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MPQ4253B-AEC1 6-36V Buck Converter Supports One Type-A QFN-26
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pMPS MPQ4253B-AEC1 — Buck Converter Supports One Type-A, 6-36V input, QFN-26, AEC-Q100./p
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MPQ4253B-AEC1 6-36V Buck Converter Supports One Type-A QFN-26
The MPS MPQ4253B-AEC1 is a Buck Converter Supports One Type-A. It operates from a 6 V to 36 V input. It is supplied in a QFN-26 package. The part is AEC-Q100 qualified.
The MPQ4253B integrates a monolithic, step- down, switch-mode converter with two USB current-limit switches and charging port identification circuitry for each port.
Key Specifications
| Part Number | MPQ4253B-AEC1 |
| Function | Buck Converter Supports One Type-A |
| Input Voltage | 6 V to 36 V |
| Interface | PWM |
| Package | QFN-26 |
| Qualification | AEC-Q100 |
| Ordering Codes | MPQ4253B-AEC1 |
Features
- All-In-One Type-C + Type-A Solution
- Passes Apple MFI Certification Test
- Type-C Auto-Entry, 1.5A Load Capability when the Type-A Port Detects a Device Is Plugged In
- Default Frequency Spread Spectrum (FSS) at 480kHz (FREQ is Floating)
- Auto-PFM/PWM Mode
- Wide 6V to 36V Operating Input Voltage (VIN) Range
- Selectable Output Voltage (VOUT): 5.1V, 5.17V, or 5.3V
- 90mV Line-Drop Compensation
- Accurate USB1/USB2 Output Current Limit (IOUT_LIMIT)
- 18mΩ/15mΩ Internal, Low RDS(ON) Buck Power MOSFETs
Typical Application Circuit
Applications
- USB Dedicated Charging Ports (DCPs)
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 MPQ4253B-AEC1 support?
6 V to 36 V.
Which package and ordering codes apply to the MPQ4253B-AEC1?
QFN-26; order codes include MPQ4253B-AEC1.
What are the defining features of the MPQ4253B-AEC1?
All-In-One Type-C + Type-A Solution Passes Apple MFI Certification Test
Is the MPQ4253B-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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