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MPQ2128-AEC1 2.5-6V, 1A, 3MHz Step-Down Converter Available in AEC-Q100 QFN8
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pMPS MPQ2128-AEC1 — Step-Down Converter Available in AEC-Q100, 2.5-6V input, 1 A output, QFN8, AEC-Q100./p
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MPQ2128-AEC1 2.5-6V, 1A, 3MHz Step-Down Converter Available in AEC-Q100 QFN8
The MPS MPQ2128-AEC1 is a Step-Down Converter Available in AEC-Q100. It operates from a 2.5 V to 6 V input, is rated for 1 A and switches at 3 MHz. It is supplied in a QFN8 package. The part is AEC-Q100 qualified.
The MPQ2128 is a 3MHz, constant-frequency, current-mode, PWM, step-down converter.
Key Specifications
| Part Number | MPQ2128-AEC1 |
| Function | Step-Down Converter Available in AEC-Q100 |
| Input Voltage | 2.5 V to 6 V |
| Current Rating | 1 A |
| Switching Frequency | 3 MHz |
| Interface | PWM |
| Peak Efficiency | 95% |
| Package | QFN8 |
| Qualification | AEC-Q100 |
| Ordering Codes | MPQ2128-AEC1 |
Features
- Meets Automotive Requirements
- Highly Efficient: Up to 95%
- 3MHz Constant-Switching Frequency
- 1A Available Load Current
- 2.5V-to-6V Input Voltage Range
- Output Voltage as Low as 0.6V
- Current-Mode Control
- Cycle-by-Cycle Over-Current Protection
- Short-Circuit Protection
- Thermal Shutdown
Design Notes
- Size the inductor for the ripple current at the actual switching frequency, typically 30% of the DC load — not for the DC rating alone.
- The hot loop from input capacitor through the switch to ground sets conducted EMI. Keep that copper area as small as the layout allows.
- Output ripple is set by the capacitor ESR and its DC-bias derating; a 10 µF ceramic often behaves like 4 µF at the rated output voltage.
- Route the feedback divider from the output capacitor terminals, away from the switch node.
Common Questions
What input voltage does the MPQ2128-AEC1 support?
2.5 V to 6 V. The rated output is 1 A.
Which package and ordering codes apply to the MPQ2128-AEC1?
QFN8; order codes include MPQ2128-AEC1.
What are the defining features of the MPQ2128-AEC1?
Meets Automotive Requirements Highly Efficient: Up to 95%
Is the MPQ2128-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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