MP1494

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High-Efficiency, 2A, 16V, 500KHz, with AAM (light load mode) Synchronous Step-Down Converter



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Product Description

The MP1494 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to achieve a 2A continuous output current with excellent load and line regulation over a wide input supply range.  The MP1494 has synchronous mode operation for higher efficiency over the output current load range.  Current-mode operation provides fast transient response and eases loop stabilization.  Full protection features include over-current protection and thermal shut down.  The MP1494 requires a minimal number of readily-available standard external components, and is available in a space-saving 8-pin TSOT23 package.

Programmable

Product Features

  • Wide 4.5V-to-16V Operating Input Range
  • 100mΩ/40mΩ Low RDS(ON) Internal Power MOSFETs
  • High-Efficiency Synchronous Mode Operation
  • Fixed 500kHz Switching Frequency
  • Synchronizes from a 200kHz-to-2MHz External Clock
  • AAM Power-Save Mode
  • Internal Soft-Start
  • OCP Protection and Hiccup
  • Thermal Shutdown
  • Output Adjustable from 0.8V
  • Available in an 8-pin TSOT-23 Package

Parametrics

  • fsw (max) (kHz)500
  • Vin (min) (V)4.5
  • Vin (max) (V)16
  • Iout (max) (A)2
  • Isw Limit (typ) (A)3
  • Max Duty Cycle (%)0.95
  • Vfb (typ) (V)0.8
  • Iq (typ) (mA)0.5
  • Regulated Outputs1
  • Vout (max) (V)13
  • Vout (min) (V)0.8
  • GradeCatalog
  • 封装TSOT23-8
  • Common FeaturesLight-Load Efficiency, Synchronous Rectification
  • 特性External Frequency Sync

Reference Materials