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MPM3551-AEC1 3.3-36V, 3A Synchronous Step-Down Module QFN-20
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pMPS MPM3551-AEC1 — Synchronous Step-Down Module, 3.3-36V input, 3 A output, QFN-20, AEC-Q100./p
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MPM3551-AEC1 3.3-36V, 3A Synchronous Step-Down Module QFN-20
The MPS MPM3551-AEC1 is a Synchronous Step-Down Module. It operates from a 3.3 V to 36 V input and is rated for 3 A. It is supplied in a QFN-20 package. The part is AEC-Q100 qualified.
The MPM3551 is an easy-to-use, fully integrated, synchronous step-down power module with a built-in inductor and power MOSFETs.
Key Specifications
| Part Number | MPM3551-AEC1 |
| Function | Synchronous Step-Down Module |
| Input Voltage | 3.3 V to 36 V |
| Current Rating | 3 A |
| Package | QFN-20 |
| Qualification | AEC-Q100 |
| Ordering Codes | MPM3551-AEC1 |
Features
- Increases Battery Life: o 1μA Shutdown Supply Current (ISD) o 20μA Sleep Mode (IQ) o AAM Mode FEATURES (continued)
- High Performance for Improved Thermals: o Integrated 70mΩ High-Side MOSFET and 50mΩ Low-Side MOSFET o 65ns Minimum On Time (tON_MIN) and 50ns Minimum Off Time (tOFF_MIN)
- Functional Safety System Design Capability: o Documents Available for MPSafe™ QM System Design
Typical Application Circuit
Applications
- Automotive Infotainment
- Automotive Clusters
- Advanced Driver-Assistance Systems (ADAS)
Design Notes
- Place the input capacitor across the module pins, not at the far end of a trace — the module's internal loop assumes a local source.
- Heat leaves through the module base and pins; the host board copper is part of the thermal solution.
- Measure output ripple with a short ground spring at the output pins; a long scope ground lead picks up switching noise that is not really there.
- For isolated variants, respect the creepage and clearance the safety standard demands across the isolation barrier.
Common Questions
What input voltage does the MPM3551-AEC1 support?
3.3 V to 36 V. The rated output is 3 A.
Which package and ordering codes apply to the MPM3551-AEC1?
QFN-20; order codes include MPM3551-AEC1.
What are the defining features of the MPM3551-AEC1?
Increases Battery Life: o 1μA Shutdown Supply Current (ISD) o 20μA Sleep Mode (IQ) o AAM Mode FEATURES (continued) High Performance for Improved Thermals: o Integrated 70mΩ High-Side MOSFET and 50mΩ Low-Side MOSFET o 65ns Minimum On Time (tON_MIN) and 50ns Minimum Off Time (tOFF_MIN)
Is the MPM3551-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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