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AIC2323

3.2A 550K/1.1MHz Synchronous PWM Step-Down Converter

FEATURES
  • 2.5V to 6V Input Voltage Range
  • Adjustable Output Voltage from 0.8V to Vin
  • 3.2A Guaranteed Output Current
  • Up to 95% Efficiency
  • Low RDS(ON) Internal Switches: 110mOhm
  • No Schottky Diode Required
  • 100% Duty Cycle in Low Dropout Operation
  • Optional 550KHz/1.1MHz Operating Frequency
  • Optional Soft-Start Internal Fixed 1ms Soft-Start (in SOP-8)
APPLICATIONS
  • LCD TV
  • Portable Products
  • Wireless and DSL Modems
  • Solid-State Drives
  • Battery-Operated Devices (1 Li-Ion or 3 NiMH/ NiCd)
DESCRIPTION
The AIC2323 is a low-noise, pulse-widthmodulated (PWM), DC-DC step-down converter. The device features an internal synchronous rectifier for high efficiency; it requires no external Schottky diode. Shutdown mode places the device in standby, reducing supply current to under 2uA. Other features of the AIC2323 include high efficiency for all load range, low dropout voltage, short circuit protection, and over temperature protection.
TYPICAL APPLICATION


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