MP4470

正在供货

High-Efficiency, Fast-Transient, 5A, 36V Synchronous, Step-Down Converter



咨询工程师或询价

产品描述

The MP4470/4470A is a fully-integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter. It offers a very compact solution to achieve a 5A, continuous-output current over a wide input-supply range with excellent load and line regulation. It also provides fast transient response and good stability for wide input-supply and load range. The MP4470/4470A operates at high efficiency over a wide output current load range. MP4470 has full protection features include SCP, OCP, OVP latch, UVP, and thermal shutdown. MP4470A has the same protection features to MP4470 except has no OVP latch function. The MP4470/4470A requires a minimal number of readily-available, standard, external components, and is available in a space-saving 3mm×4mm, 20-pin, QFN package.

Programmable

产品特性

  • Wide 4.5V-to-36V Operating Input Range
  • Guaranteed 5A, Continuous Output Current
  • Internal 40mΩ High-Side, 20mΩ Low-Side Power MOSFETs
  • Proprietary Switching-Loss-Reduction Technology
  • 1% Reference Voltage
  • Programmable Soft-Start Time
  • Low Drop-out Mode
  • 200kHz-to-1MHz Switching Frequency
  • SCP, OCP, OVP Latch(MP4470 only), UVP, and Thermal Shutdown
  • Output Adjustable from 0.8V to 0.9×VIN
  • Available in a 3×4mm 20-pin QFN Package

技术参数

  • fsw (max) (kHz)1000
  • 最小输入电压4.5
  • Vin (max) (V)36
  • Iout (max) (A)5
  • Isw Limit (typ) (A)8
  • Vfb (typ) (V)0.815
  • Iq (typ) (mA)0.5
  • 额定输出1
  • Vout (max) (V)32.4
  • Vout (min) (V)0.8
  • GradeCatalog
  • PackageQFN-20 (3x4)
  • Control ModeCOT
  • Common FeaturesExternal Soft Start, Light-Load Efficiency, Power Good, Synchronous Rectification
  • Special FeaturesProgrammable Frequency