3V to 30V Input Voltage Operation.
Internal 2A Peak Current Switch.
1.5A Continuous Output Current.
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.
Constant Current Source for Battery Chargers.
Saver for Cellular phones.
Step-Down DC-DC Converter Module.
Versatile DC/DC Converter
The AIC1563 is a monolithic control circuit
containing the primary functions required for DC
to DC converters and highside-sensed constant
current source. The device consists of an inter-
nal temperature compensated reference, com-
parator, controlled duty cycle oscillator with an
active current 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 mini-
mum number of external components. Boot-
strapped driver can drive the NPN output switch
to saturation for higher efficiency and less heat
dissipation. The AIC1563 can deliver 1.5A con-
tinuous current without requiring a heat sink.
TYPICAL APPLICATION CIRCUIT
VIN= 1 6 V, VO= 1 2 V
VIN= 1 6 V, V O= 8 V
Efficiency vs Output Current
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1563-01 Jan 30, 01
TEL: 886-3-5772500 FAX: 886-3-5772510