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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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Step-Down Converters
MPQ2178A-AEC1

MPQ2178A-AEC1

5.5V, 2A, 2.4MHz, Synchronous Step-Down Converter with Power Good and External Soft Start, AEC-Q100 Qualified

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 (I_OUT) across a 2.5V to 5.5V input voltage (V_IN) range, with excellent load and line regulation. The output voltage (V_OUT) 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.

Features & Benefits

Designed for Automotive Applications:

Wide 2.5V to 5.5V Input Voltage (V_IN) Range
Up to 2A Output Current (I_OUT)
1% Feedback Accuracy
-40°C to +150°C Operating Junction Temperature (T_J) Range
AEC-Q100 Grade 1 Qualified

Improved Battery Life:

21μA Sleep Mode Quiescent Current (I_Q)
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/EMI:

2.4MHz Switching Frequency (f_SW)
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

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