Untitled Document

  AA18346
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    Parts No : AA18346
    Description : 0.8A 180K Hz step-up/step-down/inverting DC-DC converter
    Supply : 3-36V
    Package : SOIC-8, DIP-8
    Size : - X - X -
  Data Sheet
     AA18346_20050414.pdf (368.9K) [15]
  General Description
¡á General Description
   
    The AA18346 is a monolithic switching regulator control circuit containing the primary
    functions required for DC-DC converters. This device consists of internal temperature
    compensated reference, voltage comparator, controlled duty cycle oscillator with active
    current limit circuit, driver and high current output switch. This device is specifically
    designed to be used in Step-Down, Step-Up and Voltage-Inverting applications with
    a minimum number of external components.

    The AA18346 is available in 2 packages: SOIC-8 and DIP-8.


¡á Features

    - Operation from 3.0V to 36V Input
    - Low Standby Current
    - Output Switch Current to 0.8A
    - Output Voltage Adjustable
    - Operation Frequency up to 180 KHz (CT=100PF)
    - Precision 2% Reference


¡á Applications

    - Battery Chargers
    - NICs/ Switches/ Hubs
    - ADSL Modems
    - Negative Voltage Power Supplies