MP1471A

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4.5V to 16V, 500kHz, 3A Sync Buck with TSOT23-6 Package



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Product Description

The MP1471A is a high-frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to achieve a 3A output current over a wide input supply range, with excellent load and line regulation. The MP1471A has synchronous-mode operation for higher efficiency over the output current-load range. Current-mode operation provides fast transient response and eases loop stabilization. Protection features include over-current protection and thermal shutdown. The MP1471A requires a minimal number of readily-available, standard, external components and is available in a space-saving 6-pin TSOT23 package.

Programmable

Product Features

  • Wide 4.5V-to-16V Operating Input Range
  • 110mΩ/57mΩ Low-RDS(ON) Internal Power MOSFETs
  • Proprietary Switching-Loss–Reduction Technology
  • High-Efficiency Synchronous-Mode Operation
  • Fixed 500kHz Switching Frequency
  • Internal AAM Power-Save Mode for High Efficiency at Light Load
  • Internal Soft-Start
  • Over-Current Protection and Hiccup
  • Thermal Shutdown
  • Output Adjustable from 0.8V
  • Available in a 6-pin TSOT-23 package

Parametrics

  • fsw (max) (kHz)500
  • Vin (min) (V)4.5
  • Vin (max) (V)16
  • Iout (max) (A)3
  • Isw Limit (typ) (A)4.6
  • Max Duty Cycle (%)0.92
  • Vfb (typ) (V)0.804
  • Iq (typ) (mA)0.84
  • Regulated Outputs1
  • Vout (max) (V)14.7
  • Vout (min) (V)0.8
  • GradeCatalog
  • 封装TSOT23-6
  • Control ModeCurrent Mode
  • Common FeaturesLight-Load Efficiency, Synchronous Rectification

Reference Materials