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MPQ5871-AEC1 3.5-36V Smart High-Side Load Switch QFN-8
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pMPS MPQ5871-AEC1 — Smart High-Side Load Switch, 3.5-36V input, QFN-8, AEC-Q100./p
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MPQ5871-AEC1 3.5-36V Smart High-Side Load Switch QFN-8
The MPS MPQ5871-AEC1 is a Smart High-Side Load Switch. It operates from a 3.5 V to 36 V input. It is supplied in a QFN-8 package. The part is AEC-Q100 qualified.
The MPQ5871 is designed as a smart high-side power switch for a nominal 1A load.
Key Specifications
| Part Number | MPQ5871-AEC1 |
| Function | Smart High-Side Load Switch |
| Input Voltage | 3.5 V to 36 V |
| Package | QFN-8 |
| Qualification | AEC-Q100 |
| Ordering Codes | MPQ5871-AEC1 |
Features
- Built to Handle Tough Automotive Transients o Load Dump Up to 42V o Cold Crank Down to 3.5V
- Cooler Thermals o Integrated 60mΩ MOSFET
- Extends Vehicle Battery Life o Extremely Low Standby Current: 0.5µA
- Reduces Board Size o Available in a QFN-8 (2mmx2.5mm) Package
- Flexibility o Configurable External Current Limit o Adjustable Start-Up Slew Rate o Compatible with 3.3V and 5V Logic
Typical Application Circuit
Applications
- Smart Switches for Automotive Infotainment Systems
- Power Switches for Advanced Driver- Assistance Systems (ADAS)
- High-Side Power Switches for Sub-Modules
Design Notes
- The current-limit threshold must stay inside the SOA of the pass device at the applied voltage, including startup inrush.
- Hot-swap inrush control is set by the slew rate on the gate or the dV/dt capacitor — too fast trips the upstream supply.
- Reverse-current blocking behaviour differs between ideal-diode and load-switch topologies; pick the one that matches the fault you are protecting against.
- Route the fault flag to a pin the firmware actually polls; a latch-off protection with no report looks like a dead board in the field.
Common Questions
What input voltage does the MPQ5871-AEC1 support?
3.5 V to 36 V.
Which package and ordering codes apply to the MPQ5871-AEC1?
QFN-8; order codes include MPQ5871-AEC1.
What are the defining features of the MPQ5871-AEC1?
Built to Handle Tough Automotive Transients o Load Dump Up to 42V o Cold Crank Down to 3.5V Cooler Thermals o Integrated 60mΩ MOSFET
Is the MPQ5871-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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