Monolithic Power Systems (MPS)(으)로 돌아가기

Monolithic Power Systems (MPS) MPQ4571 Synchronous Step-Down Converters

Monolithic Power Systems (MPS) MPQ4571 Synchronous Step-Down Converters achieve up to 1A of continuous output current with peak current control for superior transient response. The wide 4.5V to 60V input voltage range accommodates step-down applications in automotive input environments, while the 2μA shutdown mode quiescent current is ideal for battery-powered applications. The MPQ4571 series offers 250mΩ/45mΩ internal power MOSFETs, 40µA quiescent current, built-in soft start, enable control, and power good indications. The high-duty cycle and low-dropout mode are supplied for automotive cold crank conditions. MPS MPQ4571 Synchronous Step-Down Converters are ideal for automotive infotainment, lamps, LEDs, and industrial power systems, and the QFN-12 (2.5mm x 3mm) package provides a compact solution.

Features

  • High-efficiency synchronous mode control
  • Selectable AAM or forced CCM operation at light load
  • Remote EN control
  • Power good indicator
  • Low-dropout mode
  • Overcurrent protection (OCP)
  • Short-circuit protection (SCP) with hiccup mode
  • VIN undervoltage lockout (UVLO)
  • Thermal shutdown
  • QFN-12 (2.5mm x 3mm) package
  • Wettable flank package available
  • AEC-Q100 Grade 1 available

Applications

  • Automotive infotainment
  • Automotive lamps and LEDs
  • Automotive motor control
  • Industrial power systems

Specifications

  • 4.5V to 60V operating input range
  • 1A continuous output current
  • 250mΩ/45mΩ internal power MOSFETs
  • Configurable frequency up to 2.2MHz
  • 180° out-of-phase SYNC out clock
  • 40µA quiescent current
  • 2µA shutdown mode current
  • FB tolerance
    • 1% at room temperature
    • 2% at full temperature
  • Internal 0.45ms soft start

Typical Application

Application Circuit Diagram - Monolithic Power Systems (MPS) MPQ4571 Synchronous Step-Down Converters

Development Tools

Monolithic Power Systems (MPS) EVQ4571-QB-00A Buck Converter Evaluation Board

Demonstrates the capabilities of the MPQ4571 / MPQ4571-AEC1 synchronous step-down converters.

Learn MoreMonolithic Power Systems (MPS) EVQ4571-QB-00A Buck Converter Evaluation Board 정보 View ProductsMonolithic Power Systems (MPS) EVQ4571-QB-00A Buck Converter Evaluation Board과 관련됨

Related Converters

Monolithic Power Systems (MPS) MP4571 High-Efficiency Synchronous Buck Converters

Fully integrated, high efficiency, fixed frequency, offers up to 1A of continuous output current.

Learn MoreMonolithic Power Systems (MPS) MP4571 High-Efficiency Synchronous Buck Converters 정보 View ProductsMonolithic Power Systems (MPS) MP4571 High-Efficiency Synchronous Buck Converters과 관련됨

Monolithic Power Systems (MPS) MPQ4576 Synchronous Buck Converters

Achieve up to 600mA of continuous output current with peak current control.

Learn MoreMonolithic Power Systems (MPS) MPQ4576 Synchronous Buck Converters 정보 View ProductsMonolithic Power Systems (MPS) MPQ4576 Synchronous Buck Converters과 관련됨
게시일: 2020-10-29 | 갱신일: 2024-07-12