MPQ4459

正在供货
1.5A, 4MHz, 36V Step-Down Converter


咨询工程师或询价

产品描述

The MPQ4459 is a high frequency step-down switching regulator with an integrated internal high-side high voltage power MOSFET. It provides 1.5A output with current mode control for fast loop response and easy compensation.? The wide 4.5V to 36V input range accommodates a variety of step-down applications, including those in automotive systems. A 100? operational quiescent current is suitable for use in battery-powered applications.? The frequency foldback helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation.? By switching at 4MHz, the MPQ4459 prevents EMI (Electromagnetic Interference) noise problems, such as those found in AM radio and ADSL applications.?The MPQ4459 is available in thin 10-pin 3x3mm TQFN package.

Configurable

产品特性

  • Guaranteed Industrial Temp Range
  • 100? Quiescent Current
  • Wide 4.5V to 36V Operating Input Range
  • 150mO Internal Power MOSFET
  • Up to 4MHz Programmable Switching Frequency
  • Ceramic Capacitor Stable
  • Internal Soft-Start
  • Precision Current Limit without a Current Sensing Resistor
  • Up to 95% Efficiency
  • Output Adjustable from 0.8V to 36V
  • Available in 10-Pin 3x3mm TQFN Package

技术参数

  • fsw (max) (kHz)4000
  • 最小输入电压3.8
  • Vin (max) (V)36
  • Iout (max) (A)1.5
  • Isw Limit (typ) (A)2.5
  • Vfb (V)0.8
  • Iq (typ) (mA)0.12
  • 额定输出1
  • Vout (max) (V)30
  • Vout (min) (V)0.8
  • GradeIndustrial
  • PackageTQFN-10 (3x3)
  • Control ModeCurrent Mode
  • Common FeaturesLight-Load Efficiency
  • Special FeaturesProgrammable Frequency
质量方针和证书
所有 MPS 产品都保证无铅,无卤素,并且遵守 RoHS 规范。详情请见“环境认证”。