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AIC1563

Versatile DC/DC Converter

FEATURES
  • 3V to 30V Input Voltage Operation.
  • Internal 2A Peak Current Switch.
  • 1.5A Continuous Output Current.
  • Bootstrapped Driver.
  • High Side Current Sense Capability.
  • High Efficiency (up to 90%).
  • Internal ±2% Reference.
  • Low Quiescent Current at 1.6mA.
  • Frequency Operation from 100Hz to 100KHz.
APPLICATIONS
  • Constant Current Source for Battery Chargers.
  • Saver for Cellular phones.
  • Step-Down DC-DC Converter Module.
DESCRIPTION
The AIC1563 is a monolithic control circuit con-taining the primary functions required for DC to DC converters and highside-sensed constant cur-rent source. The device consists of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active cur-rent sense circuit, bootstrapped driver, and high current output switch. This device is specifically designed to construct a constant current source for battery chargers with a minimum number of external components. Bootstrapped driver can drive the NPN output switch to saturation for higher efficiency and less heat dissipation. The AIC1563 can deliver 1.5A continuous current without requiring a heat sink.
TYPICAL APPLICATION


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