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  4. 42V load dump resistant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323-AEC1 (Monolithic Power Systems, Inc.)
42V load dump resistant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323-AEC1-MPQ4323-AEC1
42V load dump resistant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323-AEC1-Monolithic Power Systems, Inc.

42V load dump resistant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323-AEC1
Monolithic Power Systems, Inc.

Monolithic Power Systems, Inc.'s Response Status

Response Rate

100.0%

Response Time

15.6hours

Relatively Fast Response

About This Product

■Summary

The MPQ4323 is a programmable frequency (350kHz to 2.5MHz) synchronous step-down switching converter that internally integrates high-side and low-side power MOSFETs (HS-FET and LS-FET, respectively). High efficiency output current (IOUT) of up to 3A can be achieved in peak current control mode. A wide 3.3V to 36V input voltage (VIN) range and 42V load-dump tolerance support a variety of step-down applications in automotive input environments. A 1μA shutdown current enables the device to be used in battery-powered applications. It achieves high power conversion efficiency over a wide load range by lowering the switching frequency (fSW) under light load conditions and reducing switching and gate driver losses. An open-drain power good (PG) signal indicates whether the output is within 94.5% to 105.5% of its nominal voltage. Frequency foldback prevents the inductor current from running out of control during start-up. Thermal shutdown provides reliable and fault-tolerant operation. Provides high duty cycle and low dropout mode for automotive cold crank conditions. The MPQ4323 is available in QFN-12 (2mm x 3mm) and QFN-12 (3mm x 4mm) packages.

■Designed for automotive applications

・42V load dump resistance ・Compatible with 3.1V cold crank ・Maximum 3A continuous output current (IOUT) ・Continuous operation up to 36V ・Operating junction temperature (TJ) range from -40℃ to +150℃

■Improved battery life

・1μA shutdown current (ISD) ・20μA quiescent current (IQ) in sleep mode ・Advanced Asynchronous Modulation (AAM) mode improves efficiency at light loads

■High performance that improves thermal function

・Integrated 70mΩ high-side MOSFET (HS-MOSFET) and 50mΩ low-side MOSFET (LS-MOSFET) ・65ns minimum on time (tON_MIN) and 50ns minimum off time (tOFF_MIN)

  • Product

    42V load dump resistant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323-AEC1

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1 Models of 42V load dump resistant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323-AEC1

Image Part Number Price (excluding tax) Control Mode Iout (max) (A) Iq (typ) (mA) Vfb (V) Fsw (max) (kHz) Grade Package (mm) Input voltage (max) (V) Input voltage (min) (V)
42V load dump resistant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323-AEC1-Part Number-MPQ4323-AEC1

MPQ4323-AEC1

Available upon quote

Current Mode

3

0.02

0.8

2,500

Automotive

QFN-12 (2x3), QFN-12 (3x4)

36

3.3

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About Company Handling This Product

Monolithic Power Systems, Inc.

Response Rate

100.0%

Response Time

15.6hrs

Company Overview

Monolithic Power Systems (MPS), founded in 1997 and headquartered in San Jose, California, is a manufacturer o...

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