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Monolithic Power Systems (MPS) MPQ3522 Synchronous Step-Down Converters

Monolithic Power Systems (MPS) MPQ3522 Synchronous Step-Down Converters provide up to 2A of highly efficient output current (IOUT) with peak current mode control. These synchronous converters offer a 350kHz to 2.5MHz configurable frequency range with an integrated, internal high-side MOSFET (HS-FET) and low-side MOSFET (LS-FET). The MPQ3522 converters operate from 3.3V to 20V input voltage (VIN) range. These converters offer 1μA shutdown current that allows the device to be used in battery-powered applications. The MPQ3522 converters achieve high power conversion efficiency across a wide load range by scaling down the switching frequency (fSW) under light-load conditions.

The MPQ3522 converters incorporate an open-drain Power Good (PG) signal that indicates whether the output voltage (VOUT) is within 94.5% to 105.5% of the nominal voltage. These synchronous converters are AEC-Q100 Grade 1 qualified and available in a QFN-12 (2mm x 3mm) package. Typical applications include automotive infotainment, automotive clusters, Advanced Driver-Assistance Systems (ADAS), industrial power systems, and Power over Coax (PoC) systems.

Features

  • Increases battery life:
    • 1μA shutdown supply current (ISD)
    • 20μA sleep mode Quiescent current (IQ)
    • Advanced Asynchronous Modulation(AAM) mode increases efficiency under light loads
    • Integrated 70mΩ High-Side MOSFET (HS-FET) and 50mΩ Low-Side MOSFET (LS-FET)
  • Designed for automotive applications:
    • Continuous operation up to 20V
    • Supports 3.1V for cold crank conditions
    • Low-Drop Out (LDO) mode
    • Up to 2A of continuous IOUT
    • 65ns minimum on time (tON_MIN) and 50ns minimum off time (tOFF_MIN)
    • -40°C to 150°C operating junction temperature (TJ) range
    • AEC-Q100 Grade 1 qualified
  • Optimized for EMC/EMI:
    • Frequency Spread Spectrum (FSS) modulation
    • Symmetric VIN pinout
    • CISPR25 Class 5 compliant
    • 350kHz to 2.5MHz configurable switching frequency (fSW) range
    • MeshConnect™ flip-chip package
  • Additional features:
    • Power Good (PG) output
    • 1V, 1.8V, 2.5V, 3.0V, 3.3V, 3.8V, or 5V fixed output options
    • Over-Current Protection (OCP) with hiccup mode
    • Available in a QFN-12 (2mm x 3mm) package with wettable flanks

Applications

  • Automotive infotainment
  • Automotive clusters
  • Advanced Driver-Assistance Systems (ADAS)
  • Industrial power systems
  • Power over Coax (PoC) systems

Typical Application Circuit Diagrams

Application Circuit Diagram - Monolithic Power Systems (MPS) MPQ3522 Synchronous Step-Down Converters

Block Diagram

Block Diagram - Monolithic Power Systems (MPS) MPQ3522 Synchronous Step-Down Converters
Yayınlandı: 2024-03-15 | Güncellenmiş: 2024-05-16