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MPQ4423-AEC1

Automotive Grade, High Efficiency 3A, 36V max, Synchronous Step-Down Converter with PG and Ext. Sync

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MPQ4423-AEC1

MPQ4423-AEC1

Automotive Grade, High Efficiency 3A, 36V max, Synchronous Step-Down Converter with PG and Ext. Sync

Datasheet

Description

The MPQ4423 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to achieve a 3A continuous output current with excellent load and line regulation over a wide input supply range. The MPQ4423 has synchronous mode operation for higher efficiency over the output current load range.

Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection and thermal shut down.

The MPQ4423 requires a minimal number of readily-available standard external components, and is available in a space-saving QFN-8 (3mmx3mm) package.

Features & Benefits

Wide 4V to 30V Continuous Operating Input Range
36V Input Transient Tolerance for Automotive Load Dump
85mO/55mO Low RDS(ON) Internal Power MOSFETs
High-Efficiency Synchronous Mode Operation
Default 410kHz Switching Frequency
Synchronizes to a 200kHz to 2.2MHz External Clock
High Duty Cycle for Automotive Cold-crank
Power-Save Mode
Internal Soft-Start
Power Good
OCP Protection and Hiccup
Thermal Shutdown
Output Adjustable from 0.8V
Available in an QFN-8 (3mmx3mm)
Available in AEC-Q100 Grade 1

Active Part Numbers:

MPQ4423GQ-P MPQ4423GQ-Z MPQ4423GQ-AEC1-P MPQ4423GQ-AEC1-Z

Meaning of P & Z

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Technical Forum

Questions answered by MPS engineers in 24h

MPQ4423-AEC1 PGOOD open?

Is it OK to leave the PGOOD signal unconnected? The datasheet typical application schematic Fig 8 shows a 100K pullup to VCC.

DC-DC POWER CONVERTERS

Latest activity 4 months ago

MPQ4423 as 1-10V

如果我正确地理解你的问题你想to use the MPQ4423 to create a voltage to control multiple connected ballasts (light fixtures). If th...

AUTOMOTIVE SOLUTIONS

Latest activity 2 years ago

Varey the fsw of MP4423 / MPQ4423

...the behaviour of the MP4423, I used the MPSmart v8 Tool of you - it offers the automotive variant (MPQ4423) of the chip for simulation. Does the mo...

DC-DC POWER CONVERTERS

Latest activity 8 months ago

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All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.

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