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  4. 42V load dump tolerant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323M-AEC1 (Monolithic Power Systems, Inc.)
42V load dump tolerant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323M-AEC1-MPQ4323M-AEC1
42V load dump tolerant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323M-AEC1-Monolithic Power Systems, Inc.

42V load dump tolerant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323M-AEC1
Monolithic Power Systems, Inc.

About This Product

■Summary

The MPQ4323M is a step-down switching converter with programmable frequency (350kHz to 2.5MHz), synchronous rectification, and integrated high-side MOSFET (HS-FET) and low-side MOSFET (LS-FET). The device can achieve high efficiency output currents (IOUT) up to 3A with peak current mode control. 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 shutdown mode quiescent current (quiescent current) of 1μA enables the device to be used in battery-powered applications. By lowering the switching frequency (fSW) under light load conditions and reducing switching and gate drive losses, it achieves high power conversion efficiency over a wide load range. 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 (LDO) modes for automotive cold crank conditions. The MPQ4323M is available in a QFN-12L (3.5mm x 3.5mm) package.

■Designed for automotive applications

・42V load dump resistance ・3.1V cold crank support ・Maximum 3A continuous output current (IOUT) ・Continuous operation up to 36V ・Junction temperature operation from -40°C to +150°C (maximum)

■Improved battery life

・1μA shutdown supply current ・20μA sleep mode quiescent current (quiescent current) - Advanced Asynchronous Modulation (AAM) mode to improve efficiency under light load conditions

■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 tolerant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323M-AEC1

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1 Models of 42V load dump tolerant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323M-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 tolerant, 3A, ultra-compact, low quiescent current, synchronous rectification step-down converter, AEC-Q100 qualified MPQ4323M-AEC1-Part Number-MPQ4323M-AEC1

MPQ4323M-AEC1

Available upon quote

Current Mode

3

0.02

0.8

2,200

Automotive

QFN-12L (3.5mmx3.5mm)

36

3.3

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About Company Handling This Product

Monolithic Power Systems, Inc.

Company Overview

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

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