- MPQ2178A-AEC1
MPQ2178A-AEC1
5.5V, 2A, 2.4MHz, Synchronous Step-Down Converter with Power Good and External Soft Start, AEC-Q100 Qualified
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Description
The MPQ2178A is a monolithic, step-down switch-mode converter with integrated internal power MOSFETs. It can achieve up to 2A of continuous output current (IOUT) across a 2.5V to 5.5V input voltage (VIN) range, with excellent load and line regulation. The output voltage (VOUT) can be regulated to as low as 0.6V.
The MPQ2178A is ideal for a wide range of applications, including automotive clusters, telematics, and infotainment systems. Constant-on-time (COT) control provides fast transient response and eases loop stabilization.
Full protection features include cycle-by-cycle current limiting, output over-voltage protection (OVP), short-circuit protection (SCP) with hiccup mode, and thermal shutdown. The MPQ2178A requires a minimal number of readily available, standard external components, and is available in an ultra-small QFN-8 (1.5mmx2mm) package.
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Features & Benefits
- Designed for Automotive Applications:
- Wide 2.5V to 5.5V Input Voltage (VIN) Range
- Up to 2A Output Current (IOUT)
- 1% Feedback Accuracy
- -40°C to +150°C Operating Junction Temperature (TJ) Range
- AEC-Q100 Grade 1 Qualified
- Improved Battery Life:
- 21μA Sleep Mode Quiescent Current (IQ)
- Advanced Asynchronous Modulation (AAM) Mode for Increased Efficiency under Light-Load Conditions
- High Performance for Improved Thermals:
- 70mΩ and 40mΩ Internal Power MOSFETs
- Optimized for EMC and EMI:
- 2.4MHz Switching Frequency (fSW)
- MeshConnect™ Flip-Chip Package
- Optimized for Board Size and Bill of Materials (BOM):
- Integrated Internal Power MOSFETs
- Integrated Compensation Network
- Available in a Compact QFN-8 (1.5mmx2mm) Package
- Additional Features:
- Enable (EN) for Power Sequencing
- Power Good (PG)
- 100% Duty Cycle
- External Soft Start (SS) Control
- Output Discharge
- Cycle-by-Cycle Current Limiting
- Output Over-Voltage Protection (OVP)
- Short-Circuit Protection (SCP) with Hiccup Mode
- Thermal Shutdown
- Available in a Wettable Flank Package

Active Part Numbers:
MPQ2178AGQHE-AEC1-Z MPQ2178AGQHE-AEC1-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MPQ2178A-AEC1 Resources
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